The FAV-22 represents the king of all Federation armour, and has been so since 4 years before the Sol War. An improvement over the older FAV-18, itself an outstanding armoured vehicle, the FAV-22 represents a new step in Federation armour technology.
Creator of a Billion Light Years Away
A modular design, the FAV-22 comes in five primary and numerous secondary variants, all sharing mostly the same chassis and track design. The FAV-22 chassis was build using molecular "honeycomb" heavy armour, which is sandwiched between layers of BSA gel and superfibre. This allows the body to withstand even direct hits from air-launched weapons as well as ground based and man-portable anti-tank weapons. This near-invincible layer of protection is further bolstered by the addition of reactive armour panels across weaker spots on the tank armour. An anti-ordanance, automatic defense system is mounted on the forward hull and aft compartment of the tank, and fires little pellets at inbound ordnance, destroying them before they can do damage to the tank. This defense system has made the vehicle hard to kill by the Allied forces, and a single FAV-22 is always a priority threat.
Variants.
TOW missiles
Launching station system
Patriot Missile Truck launched
The FAV-22 comes in many variants. This guide will include descriptions to the four most common variants.
FAV-22-MBT "Sword"
The Main Battle Tank variants of the FAV-22. It carries a 115mm -calibre railgun as it's primary weapon. An anti-missile point laser defense system is mounted on the top turret, and can target and destroy incoming enemy missiles with an invisible beam of light. Secondary armament is user-configurable, able to mount coaxial as well as turreted machineguns or grenade launchers. Three mounting ports on each side of the turret enables the mounting of grenade or gas/smoke dispensers as well as an added armament of anti-tank missile tubes, making the Sword a worthy foe against Allied "Lightning" tanks. The Sword is equipped with a high-performance electric drive, which can propel it for more than 48 hours non-stop on a single charge.
The 115mm railgun can fire a variety of mission-specific loads, including (but not limited to)
Rounds of smaller calibre can be used by adding a sabot before firing. This makes the tank incredibly adaptable in most conditions.
The charge-power of the gun can be determined by the tank's gunner to enable him to target enemy targets at various distances and or conditions.
FAV-22-AAA "Whirlwind" Mobile Anti-aircraft. A variant of the FAV-22-MBT, replacing the turret mount with a modified LT turret. On board the turret are optional quad 40mm, high-altitude anti-aircraft railguns or two CIWS-15-type gattling guns. While the quad-40 mm (often referred to the four-fourties) is able to down enemy craft as high as 2km up (standard atmosphere and pressure, maximum gun-charge), the gattlings are a shorter range defense system, and both can be used in an anti-infantry role as well. In front of the turret is a FRS-114 RADAR system, part of the tanks's MMADAR suite, which also includes thermal and laser targeting systems. The turret also features advanced autotracking systems which can down enemy craft accurately. A point-laser defense emitter is mounted high above the turret, which can protect an entire ground force from enemy attack. In addition, two 6-pack SAM tube mountings (with various mission-specific missiles and warheads) can be mounted on the side of the turret.
The FAV-22-AAA shares the same general chassis as the MBT variant.
FAV-22-LT "Scorpion" Light Battle Tank
Built for speed and mobility, the Scorpion variant features a smaller, but taller turret that can engage different kinds of land foes (taller turret allows lower-angle shots), quickly and effectively. Built with lighter (but weaker, to a certain extent), combat armor, the scorpion was designed with speed in mind. Capable of being air-dropped from smaller dropships, the Scorpion's main role is to back up infantry battalions as well as hit-and-run operations. Instead of an electric drive, the Scorpion runs on the more powerful (but with higher fuel consumption) gas-turbine engines, that can propel it to an astounding 75 kilometers and hour on flat terrain. The Scorpions carry the smaller, but faster-firing 75mm railgun, and can mount anti-tank missile launchers for an increased anti-armour role, or various other accessories shared with it's larger MBT cousin. The Scorpion lacks the turreted Point-Laser defense systems of it's other cousins, but makes it up with pure speed and manouverbility.
King Scorpion subvariant.
A sub-variant of the Scorpion, the King Scorpion shares all the features with the regular Scorpions, with the addition of additional communications and battle-planning equipment for field commanders using the vehicle, allowing the commanders to keep in touch and control of the tanks he is leading into battle. A more powerful and longer range ORBIS system as well as a superluminal communications array is available on request. A commander verision of the MBT variant is still being designed and has not come into service.
Future plans. With such a modular and adaptable (if not, expensive) vehicle, many other variants of the FAV-22 is being developed. These include
Many believed armor had little utility in Vietnam, but Marine and Army combat experience proved that there was no substitute for the shock and firepower tanks brought to the battlefield. Used primarily in the infantry support role, the M48A3 tank was America’s main battle tank in Vietnam from the earliest combat action, and in South Vietnamese service almost to its last.
The M48 was the final version of the Patton series, named after General George S. Patton. The first M48s were produced from 1952 to 1959, but the Vietnam-era A3 was a modernized and refurbished variant that first rolled out in February 1963. It had a supercharged diesel instead of a gasoline engine and an enhanced fire control system. The turret and hull were made from cast homogenous steel and enjoyed a 60-degree frontal slope. The turret had 4.5 inches of frontal armor, 3 inches of side armor and 2 inches in the rear. The hull’s front armor was 4.3 inches, and side armor was 3 inches forward and 2 inches at the rear. Inch-thick floor plating gave good protection against enemy mines.
The M48’s 90mm M41 cannon fired a 24.16-pound shell with a muzzle velocity of 2,800 feet per second out to a maximum range of 4,500 meters, but the fire control system had a 2,500-meter limit. The gunner used an M17A1 coincidence rangefinder, and the fire control system included a repeater that displayed the gunner’s sight picture to the commander. A coaxial .30-caliber machine gun and a .50-caliber gun in, or mounted on, the commander’s cupola rounded out the tank’s armament.
The M48A3’s wide tracks gave it good off-road mobility, but Vietnam’s exceptionally soft, deep mud frequently bogged it down. Its shallow fording depth (4 feet) and weight could limit its employment. A kit was available that enabled the tank to ford rivers up to 14 feet deep, but it was rarely used.
Patton tanks were in most of the war’s major actions, serving with the Marines and three U.S. Army tank battalions and with Army armored cavalry squadrons until replaced by M551 Sheridan light tanks. As U.S. forces began to depart in 1970, they turned their M48s over to the South Vietnamese.
Although designed to combat massed Soviet armored formations, the Patton was an invaluable weapon for infantry support and defending firebases. It is generally considered superior to the T-54/55 and T-59 tanks the NVA deployed south in 1972 and later. The newer M60 replaced the Patton in regular U.S. Army and Marine units after the war, but the M48 remained in service with most American allies and its reserve units well into the 1990s.
The M777 began as the Ultralight-weight Field Howitzer (UFH), developed by Vickers Shipbuilding and Engineering's armaments division in Barrow-in-Furness, United Kingdom. This company was bought by BAE Systems which ended up responsible for design, construction and assembly through its US-based, BAE Systems Land and Armaments group. The M777 uses about 70% US-built parts including the gun barrel manufactured at the Watervliet Arsenal.[citation needed]
With a weight of 4,200 kg (9,300 lb), the M777 is 41% lighter than the 7,154 kg (15,772 lb) M198 howitzer it replaces.[8][9] Much of the weight reduction is due to the extensive use of titanium.[10] The M777 can be transported by helicopter sling-load, transporter aircraft such as the C-130, or towed by air-braked vehicles weighing over 2.5 tonnes (2.8 short tons), such as the FMTV and MTVR.[11][12] The minimal gun crew required is five, compared to a previous nine.[13]
The M777 uses a digital fire-control system similar to that found on self-propelled howitzers such as the M109A6 Paladin to provide navigation, pointing and self-location, allowing it to be put into action quickly.[citation needed] The Canadian M777 in conjunction with the traditional "glass and iron sights/mounts" also uses a digital fire control system called the Digital Gun Management System (DGMS) produced by SELEX with components of the Indirect Fire Control Software Suite (IFCSS) built by the Firepower team in the Canadian Army Land Software Engineering Centre.[14] The SELEX portion of the system, known as LINAPS, had been proven previously through earlier fielding on the British Army Royal Artillery's L118 Light Gun.[15]
The M777 may be combined with the M982 Excalibur GPS-guided munition, which allows accurate fire at a range of up to 40 km (25 mi). This almost doubles the area covered by a single battery to about 1,250 km2 (480 sq mi). Testing at the Yuma Proving Ground by the US Army placed 13 of 14 Excalibur rounds, fired from up to 24 kilometres (15 mi), within 10 m (33 ft) of their target, suggesting a circular error probable of 5 m (16 ft).[16]
In June 2012, Golf Battery, 2nd Battalion, 11th Marines, out of Camp Pendleton, California, dropped the M982 Excalibur round on insurgents at a range of 36 km (22 mi) in Helmand Province, Afghanistan. This marked the longest operational shot in the history of the M777 howitzer, and the longest operational artillery shot in history for the Marine Corps.[17]
In 2014 the US military began fielding several upgrades to its M777 howitzers including new liquid crystal display units, software updates, improved power systems, and muzzle sensors for onboard ballistic computing. Future upgrades include a touchscreen Chief Section Display, a new Mission System Computer, and a digital radio.[18]
In May 2017, the U.S. Army revealed it was buying the Swedish BONUS round as an interim system as a result of the required phasing out of cluster munitions from artillery shells, complying with policy to achieve less than 1% unexploded ordnance from non-unitary explosives; the BONUS has two sensor-fused munitions deployed by a 155 mm carrier projectile that scan the ground for targets and fire explosively formed penetrators down from the air. The system has been tested from the M777 howitzer.[19]
The Tiger I[1]listen (help·info) is a Germanheavy tank of World War II deployed from 1942 in Africa and Europe, usually in independent heavy tank battalions. Its final designation was Panzerkampfwagen VI Tiger Ausf. E often shortened to Tiger. The Tiger I gave the Wehrmacht its first armoured fighting vehicle that mounted the 8.8 cm KwK 36 gun (not to be confused with the 8.8 cm Flak 36). 1,347 were built between August 1942 and August 1944.[9] After August 1944, production of the Tiger I was phased out in favour of the Tiger II.
While the Tiger I has been called an outstanding design for its time,[10] it was over-engineered,[11] using expensive materials and labour-intensive production methods. The Tiger was prone to certain types of track failures and breakdowns, and was limited in range by its high fuel consumption. It was expensive to maintain, but generally mechanically reliable.[12] It was difficult to transport, and vulnerable to immobilisation when mud, ice, and snow froze between its overlapping and interleaved Schachtellaufwerk-pattern road wheels, often jamming them solid. This was a problem on the Eastern Front in the muddy rasputitsa season and during periods of extreme cold.[citation needed]
The tank was given its nickname "Tiger" by Ferdinand Porsche, and the Roman numeral was added after the later Tiger II entered production. The initial designation was Panzerkampfwagen VI Ausführung H (‘‘Panzer VI version H’’, abbreviated PzKpfw VI Ausf. H) where 'H' denoted Henschel as the designer/manufacturer. It was classified with ordnance inventory designationSd.Kfz. 182. The tank was later re-designated as PzKpfw VI Ausf. E in March 1943, with ordnance inventory designation Sd.Kfz. 181.
Today, only seven Tiger I tanks survive in museums and private collections worldwide. The Tiger 131 at the UK's Tank Museum, which was captured during the North Africa Campaign, is currently the only one restored to running order.
Henschel & Sohn began development of a large tank design in January 1937 when the Waffenamt requested Henschel to develop a Durchbruchwagen ("breakthrough vehicle") in the 30–33 tonne range.[13] Only one prototype hull was ever built and it was never fitted with a turret. The Durchbruchwagen I's general shape and suspension resembled the Panzer III, while the turret resembled the early Panzer IV C turret with the short-barrelled 7.5 cm L/24 cannon.
Before Durchbruchwagen I was completed, a request was issued for a heavier 30-tonne class vehicle with thicker armour; this was the Durchbruchwagen II, which would have had 50 mm (2 in) of frontal armour and mounted a Panzer IV turret with a short-barrelled 7.5 cm L/24 gun. Overall weight would have been 36 tonnes. Only one hull was built and no turret was fitted. Further development of the Durchbruchwagen was dropped in 1938 in favour of the larger and better-armoured VK 30.01 (H) and VK 36.01 (H) designs.[c] Both the Durchbruchwagen I and II prototype hulls were used as test vehicles until 1941.
Another attempt[]
The VK 30.01 (H) medium tank and the VK 36.01 (H) heavy tank designs pioneered the use of the complex Schachtellaufwerk track suspension system of torsion bar-sprung, overlapped and interleaved main road wheels for tank use. This concept was already common on German half-tracks such as the Sd.Kfz. 7. The VK 30.01 (H) was intended to mount a low-velocity 7.5 cm L/24 infantry support gun, a 7.5 cm L/40 dual purpose anti-tank gun, or a 10.5 cm L/28 field gun in a Krupp turret. Overall weight was to be 33 tonnes. The armour was designed to be 50 mm on frontal surfaces and 30 mm on the side surfaces. Four prototype hulls were completed for testing. Two of these were later modified to build the "Sturer Emil" (12.8 cm Selbstfahrlafette L/61) self-propelled anti-tank gun.
The VK 36.01 (H) was intended to weigh 40 tonnes, with 100 mm (4 in) of armour on front surfaces, 80 mm on turret sides and 60 mm on the hull sides. The VK 36.01 (H) was intended to carry a 7.5 cm L/24, or a 7.5 cm L/43, or a 7.5 cm L/70, or a 12.8 cm L/28 cannon in a Krupp turret that looked similar to an enlarged Panzer IV Ausf. C turret. The hull for one prototype was built, followed later by five more. The six turrets built were never fitted and were used as part of the Atlantic Wall. The VK 36.01 (H) project was discontinued in early 1942 in favour of the VK 45.01 project.
On 26 May 1941, Henschel and Ferdinand Porsche were asked to submit designs for a 45-tonne heavy tank, to be ready by June 1942.[15] Porsche worked on an updated version of their VK 30.01 (P) Leopard tank prototype while Henschel worked on an improved VK 36.01 (H) tank. Henschel built two prototypes: a VK 45.01 (H) H1 with an 8.8 cm L/56 cannon, and a VK 45.01 (H) H2 with a 7.5 cm L/70 cannon.
Final designs[]
On 22 June 1941, Germany launched Operation Barbarossa, the invasion of the Soviet Union. The Germans were shocked to encounter Soviet T-34 medium and KV-1 heavy tanks, and,[16] according to Henschel designer Erwin Aders: "There was great consternation when it was discovered that the Soviet tanks were superior to anything available to the Heer.".[17]
An immediate weight increase to 45 tonnes and an increase in gun calibre to 8.8 cm was ordered. The due date for the new prototypes was set for 20 April 1942, Adolf Hitler's 53rd birthday. Unlike the Panther tank, the designs did not incorporate sloped armour, an innovation taken from the T-34.
[2] Model reconstruction of VK 4501 (P) Porsche prototypePorsche and Henschel submitted prototype designs, each making use of the Krupp-designed turret. They were demonstrated at Rastenburg in front of Hitler. The Henschel design was accepted, mainly because the Porsche VK 4501 (P) prototype design used a troubled gasoline-electric hybrid power unit which needed large quantities of copper for manufacture of its electrical drivetrain components, a strategic war material of which Germany had limited supplies with acceptable electrical properties for such uses.[18] Production of the Panzerkampfwagen VI Ausf. H began in August 1942. Expecting an order for his tank, Porsche built 100 chassis. After the contract was awarded to Henschel, they were used for a new turretless, casemate-style tank destroyer; 91 hulls were converted into the Panzerjäger Tiger (P) in early 1943.
The Tiger was still at the prototype stage when it was first hurried into service, and therefore changes both large and small were made throughout the production run. A redesigned turret with a lower cupola was the most significant change. To cut costs, the submersion capability and an external air-filtration system were dropped.
Design[]
The Tiger differed from earlier German tanks principally in its design philosophy. Its predecessors balanced mobility, armour and firepower, and were sometimes outgunned by their opponents.
While heavy, this tank was not slower than the best of its opponents. However, at over 50 tonnes dead weight, the suspension, gearboxes, and other such items had clearly reached their design limits and breakdowns were frequent if regular maintenance was not undertaken.[citation needed]
Although the general design and layout were broadly similar to the previous medium tank, the Panzer IV, the Tiger weighed more than twice as much. This was due to its substantially thicker armour, the larger main gun, greater volume of fuel and ammunition storage, larger engine, and a more solidly built transmission and suspension.
Armour[]
[3] The Tiger I's armour was up to 120 mm on the mantlet.The Tiger I had frontal hull armour 100 mm (3.9 in) thick, frontal turret armour of 100 mm (3.9 in) and a 120 mm (4.7 in) thick gun mantlet.[19] The Tiger had 60 mm (2.4 in) thick hull side plates and 80 mm armour on the side superstructure/sponsons, while turret sides and rear were 80 mm. The top and bottom armour was 25 mm (1 in) thick; from March 1944, the turret roof was thickened to 40 mm (1.6 in).[5] Armour plates were mostly flat, with interlocking construction. The armour joints were of high quality, being stepped and welded rather than riveted and were made of maraging steel.
Gun[]
[4]Turmzielfernrohr TZF 9c gun sightMain article: 8.8 cm KwK 36The 56-calibre long 8.8 cm KwK 36 was chosen for the Tiger. A combination of a flat trajectory from the high muzzle velocity and precision from Leitz Turmzielfernrohr TZF 9b sight (later replaced by the monocular TZF 9c) made it very accurate. In British wartime firing trials, five successive hits were scored on a 410 by 460 mm (16 by 18 in) target at a range of 1,100 metres (3,600 ft).[17] Compared with the other contemporary German tank guns, the 8.8 cm KwK 36 had superior penetration to the 7.5 cm KwK 40 on the Sturmgeschütz III and Panzer IV but inferior to the 7.5 cm KwK 42 on the Panther tank[20] under ranges of 2,500 metres. At greater ranges, the 8.8 cm KwK 36 was superior in penetration and accuracy.
The ammunition for the Tiger had electrically fired primers. Four types of ammunition were available but not all were fully available; the PzGr 40 shell used tungsten, which was in short supply as the war progressed.
[5] Crew working on the engine through the hatch on the rear hull roofThe rear of the tank held an engine compartment flanked by two separate rear compartments each containing a fuel tank and radiator. The Germans had not developed an adequate diesel engine, so a petrol (gasoline) powerplant had to be used instead. The original engine utilised was a 21.35-litre (1303 cu.in.) 12-cylinder Maybach HL 210 P45 developing 485 kW (650 hp) at 3,000 rpm. Although a good engine, it was underpowered for the vehicle. From the 251st Tiger onwards, it was replaced by the upgraded HL 230 P45, a 23.095 litre (1409 cu.in.) engine developing 521 kW (700 hp) at 3,000 rpm.[21] The main difference between these engines was that the original Maybach HL 210 used an aluminium engine block while the Maybach HL 230 used a cast-iron engine block. The cast-iron block allowed for larger cylinders (and thus, greater displacement) which increased the power output to 521 kW (700 hp). The engine was in V-form, with two cylinder banks set at 60 degrees. An inertia starter was mounted on its right side, driven via chain gears through a port in the rear wall. The engine could be lifted out through a hatch on the rear hull roof. In comparison to other V12 and various vee-form gasoline engines used for tanks, the eventual HL 230 engine was nearly four litres smaller in displacement than the Allied British Rolls-Royce Meteor V12 AFV powerplant, itself adapted from the RR Merlin but de-rated to 448 kW (600 hp) power output; and the American Ford-designed precursor V12 to its Ford GAA V-8 AFV engine of 18 litre displacement, which in its original V12 form would have had the same 27 litre displacement as the Meteor.
The engine drove the front sprockets through a drivetrain connecting to a transmission in the front portion of the lower hull; the front sprockets had to be mounted relatively low as a result. The Krupp-designed 11-tonne turret had a hydraulic motor whose pump was powered by mechanical drive from the engine. A full rotation took about a minute.
Another new feature was the Maybach-Olvar hydraulically controlled semi-automatic pre-selector gearbox. The extreme weight of the tank also required a new steering system. Germany's Argus Motoren, where Hermann Klaue had invented a ring brake[22] in 1940, supplied them for the Arado Ar 96[23] and also supplied the 55 cm disc.[24] Klaue acknowledged in the patent application that he had merely improved on existing technology, that can be traced back to British designs dating to 1904. It is unclear whether Klaue's patent ring brake was utilised in the Tiger brake design.
The clutch-and-brake system, typical for lighter vehicles, was retained only for emergencies. Normally, steering depended on a double differential, Henschel's development of the British Merritt-Brown system[25] first encountered in the Churchill tank. The vehicle had an eight-speed gearbox, and the steering offered two fixed radii of turns on each gear, thus the Tiger had sixteen different radii of turn. In first gear, at a speed of a few km/h, the minimal turning radius was 3.44 m (11 ft 3 in). In neutral gear, the tracks could be turned in opposite directions, so the Tiger I pivoted in place.[26] There was a steering wheel instead of either a tiller — or, as most tanks had at that time, twin braking levers — making the Tiger I's steering system easy to use, and ahead of its time.[25]
Suspension[]
[6] Clear view of the Tiger I's Schachtellaufwerk overlapping and interleaved road wheels during productionThe suspension used sixteen torsion bars, with eight suspension arms per side. To save space, the swing arms were leading on one side and trailing on the other. There were three road wheels (one of them double, closest to the track's centre) on each arm, in a so-called Schachtellaufwerk overlapping and interleaved arrangement, similar to that pioneered on German half-tracked military vehicles of the pre-World War II era, with the Tiger I being the first all-tracked German AFV built in quantity to use such a road wheel arrangement. The wheels had a diameter of 800 mm (31 in) in the Schachtellaufwerk arrangement for the Tiger I's suspension, providing a high uniform distribution of the load onto the track, at the cost of increased maintenance. Removing an inner wheel that had lost its solid rubber tire (a common occurrence) required the removal of up to nine other wheels first. During the rainy period that brought on the autumn rasputitsa mud season and onwards into the winter conditions on the Eastern front, the roadwheels of a Schachtellaufwerk-equipped vehicle could also become packed with mud or snow that could then freeze. Presumably, German engineers, based on the experience of the half tracks, felt that the improvement in off-road performance, track and wheel life, mobility with wheels missing or damaged, plus additional protection from enemy fire was worth the maintenance difficulties of a complex system vulnerable to mud and ice. This approach was carried on, in various forms, to the Panther and the non-interleaved wheel design for the Tiger II. Eventually, a new 80 cm diameter 'steel' wheel design, closely resembling those on the Tiger II, with an internally sprung steel-rim tire was substituted, and which like the Tiger II, were only overlapped and not interleaved.
[7] Tiger at the Henschel plant is loaded onto a special rail car. The outer road wheels have been removed and narrow tracks put in place to decrease vehicle width, allowing it to fit within the loading gauge of the German rail network.To support the considerable weight of the Tiger, the tracks were 725 mm (2 ft 4.5 in) wide. To meet rail-freight size restrictions, the outermost roadwheel on each axle (16 total) could be unbolted from a flange [27] and narrower 520 mm (20 in) wide 'transport' tracks (Verladeketten) installed.[28][25][29] The track replacement and wheel removal took 30 minutes for each side of the tank.[30] However, in service, Tigers were frequently transported by rail with their combat tracks fitted, as long as the train crew knew there were no narrow tunnels or other obstructions on the route that would prevent an oversized load from passing, despite this practice being strictly forbidden.[31]
The Tiger tank was too heavy for small bridges, so it was designed to ford bodies of water up to four metres (13 feet) deep. This required unusual mechanisms for ventilation and cooling when underwater. At least 30 minutes of set-up time was required, with the turret and gun being locked in the forward position, and a large snorkel tube raised at the rear. An inflatable doughnut-shaped ring sealed the turret ring. The two rear compartments (each containing a fuel tank, radiator and fans) were floodable. Only the first 495 units were fitted with this deep fording system; all later models were capable of fording water only two metres deep.
Crew compartment[]
The internal layout was typical of German tanks. Forward was an open crew compartment, with the driver and radio-operator seated at the front on either side of the gearbox. Behind them the turret floor was surrounded by panels forming a continuous level surface. This helped the loader to retrieve the ammunition, which was mostly stowed above the tracks. Three men were seated in the turret; the loader to the right of the gun facing to the rear, the gunner to the left of the gun, and the commander behind him. There was also a folding seat on the right for the loader. The turret had a full circular floor and 157 cm headroom.
Cost[]
The main problem with the Tiger was that its production required considerable resources in terms of manpower and material, which led to it being expensive: the Tiger I cost over twice as much as a Panzer IV and four times as much as a StuG IIIassault gun.[32] Partly because of their high cost, only 1,347 Tiger I and 492 Tiger II tanks were produced.[33] The closest counterpart to the Tiger from the United States was the M26 Pershing (around 200 deployed to the European Theater of Operations (ETO) during the war[34][page needed]) and the IS-2 from the USSR (about 3,800 built during the conflict).
Although from a technical point of view it was superior to its contemporaries,[35] the low number produced, shortages in qualified crew and the considerable fuel requirement in a context of ever shrinking resources prevented the Tiger I from having a real impact on the war.
Production history[]
[9] Installing the turretProduction of the Tiger I began in August 1942 at the factory of Henschel und Sohn in Kassel,[36] initially at a rate of 25 per month and peaking in April 1944 at 104 per month. 1,355 had been built by August 1944, when production ceased. Deployed Tiger I's peaked at 671 on 1 July 1944.[37] It took about twice as long to build a Tiger I as another German tank of the period. When the improved Tiger II began production in January 1944, the Tiger I was soon phased out.
In 1943, Japan bought several specimens of German tank designs for study. A single Tiger I was apparently purchased, along with a Panther and two Panzer IIIs, but only the Panzer IIIs were actually delivered.[38] The undelivered Tiger was loaned to the German Wehrmacht by the Japanese government.
Many modifications were introduced during the production run to improve automotive performance, firepower and protection. Simplification of the design was implemented, along with cuts due to raw material shortages. In 1942 alone, at least six revisions were made, starting with the removal of the Vorpanzer (frontal armour shield) from the pre-production models in April. In May, mudguards bolted onto the side of the pre-production run were added, while removable mudguards saw full incorporation in September. Smoke discharge canisters, three on each side of the turret, were added in August 1942. In later years, similar changes and updates were added, such as the addition of Zimmerit (a non-magnetic anti-mine coating), in late 1943.[39][40][41] Due to slow production rates at the factories, incorporation of the new modifications could take several months.
The humorous and somewhat racy crew manual, the Tigerfibel, was the first of its kind for the German Army and its success resulted in more unorthodox manuals that attempted to emulate its style.
Variants[]
Among other variants of the Tiger, a citadel, heavily armoured self-propelled rocket projector, today commonly known as the Sturmtiger, was built.[42] A tank recovery version of the Porsche Tiger I (Bergetiger), and one Porsche Tiger I, was issued to the 654th Heavy Tank Destroyer Battalion, which was equipped with the Ferdinand/Elefant. In Italy, a demolition carrier version of the Tiger I without a main gun was built by maintenance crews in an effort to find a way to clear minefields. It is often misidentified as a BergeTiger recovery vehicle. As many as three may have been built. It carried a demolition charge on a small crane on the turret in place of the main gun. It was to move up to a minefield and drop the charge, back away, and then set the charge off to clear the minefield. There is no verification of any being used in combat.
Another variant was the Fahrschulpanzer VI Tiger tanks (driving school Tiger tanks). These tanks were Tigers with modified engines to run on either compressed Towngas gas (Stadtgas System) or wood gas (Holzgas System). This was due to shortages in fuel supply. They used a mixture of turreted and turretless hulls. They were used to train Tiger tank crews. They were not used in combat.
Designations[]
[10] Tigers under construction. This hull rests on a jig (1944)[11] Assembly facility; the vehicles are fitted with the narrower transport tracks (1943)
Hitler's order, dated 27 February 1944, abolished the designation Panzerkampfwagen VI and ratified Panzerkampfwagen Tiger Ausf. E, which was the official designation until the end of the war.[19] For common use it was frequently shortened to Tiger.
Combat history[]
Gun and armour performance[]
[12] German soldiers inspect a non-penetrating hit to the Tiger's armour.A report prepared by the Waffenamt-Prüfwesen 1 gave the calculated probability of perforation at range, on which various adversaries would be defeated reliably at a side angle of 30 degrees to the incoming round.
The Wa Pruef report estimated that the Tiger's 88 mm gun would be capable of penetrating the differential case of an American M4 Sherman from 2,100 m (1.3 mi) and the turret front from 1,800 m (1.1 mi), but the Tiger's 88 mm gun would not penetrate the upper glacis plate at any range. The M4 Sherman's 75 mm gun would not penetrate the Tiger frontally at any range, and needed to be within 100 m to achieve a side penetration against the 80 mm upper hull superstructure. The Sherman's upgraded 76 mm gun might penetrate the Tiger's driver's front plate from 600 m, the nose from 400 m and the turret front from 700 m.[45] The M3 90 mm cannon used as a towed anti-aircraft and anti-tank gun, and later mounted in the M36 tank destroyer and finally the late-war M26 Pershing, could penetrate the Tiger's front plate at a range of 1,000 m using standard ammunition, and from beyond 2,000 m when using HVAP.[46]
Soviet ground trial testing conducted in May 1943 determined that the 8.8 cm KwK 36 gun could pierce the T-34-76 frontal beam nose of 140 mm thickness from 1500 m, and the front hull from 1500 m. A hit to the driver's hatch would force it to collapse inward and break apart.[47][48][f] According to the WaPrüf, the Soviet T-34-85's upper glacis and turret front armour would be defeated between 100 and 1,400 m (0.062 and 0.870 mi), while the T-34's 85 mm gun would penetrate the front of a Tiger between 200 and 500 m (0.12 and 0.31 mi).[45] The 120 mm hull armour of the Soviet IS-2 model 1943 would be defeated between 100 and 300 m (0.062 and 0.186 mi) at the driver's front plate and nose.[45] The IS-2's 122 mm gun could penetrate the Tiger's front armour from between 500 and 1,500 m (0.31 and 0.93 mi).[45] However, according to Steven Zaloga, the IS-2 and Tiger I could each knock the other out in normal combat distances below 1,000 m.[49] At longer ranges, the performance of each respective tank against each other was dependent on the crew and the combat situation.[50]
The British Churchill IV would become vulnerable to the Tiger at between 1,100 and 1,700 m (0.68 and 1.06 mi), its strongest point being the nose and its weakest the turret. According to an STT document dated April 1944, it was estimated that the British 17-pounder, as used on the Sherman Firefly, firing its normal APCBC ammunition, would penetrate the turret front and driver's visor plate of the Tiger out to 1,900 yards (1,700 m).[45]
When engaging targets, Tiger crews were encouraged to angle the hull position 45 degrees to the Mahlzeit Stellung of 10 ½ or 1 ½ o'clock. This would maximize the effective front hull armour to 180mm and side hull to 140mm, making the Tiger impervious to any Allied gun up to 152 mm.[51][52] Unlike the lighter Panzer IV and Panther tanks, the Tiger's thick side armour gave a degree of confidence of immunity from flank attacks. The tank was also immune to Soviet anti-tank rifle fire to the sides and rear. Its large calibre 8.8 cm provided superior fragmentation and high explosive content over the 7.5 cm KwK 42 gun. Therefore, comparing the Tiger with the Panther, for supporting the infantry and destroying fortifications, the Tiger offered superior firepower. It was also key to dealing with towed anti-tank guns; according to German tank commander Otto Carius:
The destruction of an antitank gun was often accepted as nothing special by lay people and soldiers from other branches. Only the destruction of other tanks counted as a success. On the other hand, antitank guns counted twice as much to the experienced tanker. They were much more dangerous to us. The antitank cannon waited in ambush, well camouflaged, and magnificently set up in the terrain. Because of that, it was very difficult to identify. It was also very difficult to hit because of its low height. Usually, we didn't make out the antitank guns until they had fired the first shot. We were often hit right away, if the antitank crew was on top of things, because we had run into a wall of antitank guns. It was then advisable to keep as cool as possible and take care of the enemy, before the second aimed shot was fired.
— Otto Carius (translated by Robert J Edwards), Tigers in the Mud[53]===First actions===
[13] A Tiger I deployed to supplement the Afrika Korps operating in Tunisia, January 1943Eager to make use of the powerful new weapon, Hitler ordered the vehicle be pressed into service months earlier than had planned.[54] A platoon of four Tigers went into action on 23 September 1942 near Leningrad.[55] Operating in swampy, forested terrain, their movement was largely confined to roads and tracks, making defence against them far easier. Many of these early models were plagued by problems with the transmission, which had difficulty handling the great weight of the vehicle if pushed too hard. It took time for drivers to learn how to avoid overtaxing the engine and transmission, and many broke down. The most significant event from this engagement was that one of the Tigers became stuck in swampy ground and had to be abandoned. Captured largely intact, it enabled the Soviets to study the design and prepare countermeasures.[56][57]
The 503rd Heavy Panzer Battalion was deployed to the Don Front in the autumn of 1942, but arrived too late to participate in Operation Winter Storm, the attempt to relieve Stalingrad. It was subsequently engaged in heavy defensive fighting in the Rostov-on-Don and adjacent sectors in January and February 1943.
In the North African Campaign, the Tiger I first saw action during the Tunisia Campaign on 1 December 1942 east of Tebourba when three Tigers attacked an olive grove 5 km west of Djedeida.[58] The thick olive grove made visibility very limited and enemy tanks were engaged at close range. The Tigers were hit by a number of M3 Lee tanks firing at a range of 80 to 100 metres. Two of the Lees were knocked out in this action. The Tiger tanks proved that they had excellent protection from enemy fire; this greatly increased the crew's trust in the quality of the armour.[58] The first loss to an Allied gun was on 20 January 1943 near Robaa,[59] when a battery of the British 72nd Anti-Tank Regiment knocked out a Tiger with their 6-pounder (57 mm) anti-tank guns. Seven Tigers were immobilised by mines during the failed attack on Béja during Operation Ochsenkopf at the end of February.[60]
Later actions[]
On 11 April 1945, a Tiger I destroyed three M4 Sherman tanks and an armoured car advancing on a road.[61] On 12 April 1945, a Tiger I (F02) destroyed two Comet tanks, one halftrack and one scout car.[61] This Tiger I was destroyed by a Comet tank of A Squadron of the 3rd Royal Tank Regiment on the next day without infantry support.[61]
Mobility and reliability[]
[14] A Tiger undergoing engine repairsThe tank's weight significantly limited its use of bridges. For this reason, the Tiger was built with water tight hatches and a snorkel device that allowed it to ford water obstacles four metres deep. The tank's weight also made driving through buildings risky, as the presence of a cellar could result in a sudden drop. Another weakness was the slow traverse of the hydraulically operated turret. Due to reliability problems with the Maybach HL 210 TRM P45, which was delivered within the first production batch of 250 Tigers, performance for its maximum power output at high gear ratio could not be fulfilled.[62] Though the Maybach engines had a maximum of 3,000 rpm, crews were told in the Tigerfibel not to exceed 2,600 rpm. The engine limitation was alleviated only by the adoption of the Maybach HL 230.[62] A British Army test report showed that the turret on the Tiger E tank turned 360 degrees, at 19º/second, with its power traverse system set at high ratio and with the engine speed at 2,000 revolutions per minute (rpm).[63] The turret could also be traversed manually, but this option was rarely used, except for very small adjustments.[64]
Early Tigers had a top speed of about 45 kilometres per hour (28 mph) over optimal terrain. This was not recommended for normal operation, and was discouraged in training. An engine governor was subsequently installed, capping the engine at 2,600 rpm and the Tiger's maximum speed to about 38 kilometres per hour (24 mph). Tiger crews report that typical march speed off-road was 10 kilometers per hour (6 mph).[65] However, medium tanks of the time, such as the Sherman or T-34, had on average a top speed of about 45 kilometres per hour (28 mph). Thus, despite the Tiger being nearly twice as heavy, its speed was comparatively respectable.[64] With the tank's very wide tracks, a design feature borrowed from the Soviet T-34, the Tiger had a lower ground pressure than many smaller tanks, such as the M4 Sherman.
[15] Tiger I towed by two Sd.Kfz. 9Tiger I tanks needed a high degree of support. It required two or sometimes three of the standard German Sd.Kfz. 9 Famo heavy recovery half-track tractors to tow it. Tiger crews often resorted to using another Tiger to tow the damaged vehicle, but this was not recommended as it often caused overheating and engine breakdown. The low-mounted sprocket limited the obstacle clearance height. The tracks also had a tendency to override the rear sprocket, resulting in immobilisation. If a track overrode and jammed, two Tigers were normally needed to tow the tank. The jammed track was also a big problem itself, since due to high tension, it was often impossible to split the track by removing the track pins. The track sometimes had to be blown apart with a small explosive charge.
The average reliability of the Tiger tank in the second half of 1943 was similar to that of the Panther, 36%, compared to the 48% of the Panzer IV and the 65% of the StuG III.[66] From May 1944 to March 1945, the reliability of the Tiger tank was as good as the Panzer IV. With an average of 70%, the Tiger's operational availability on the Western Front, was better than compared to 62% of Panthers. On the Eastern Front, 65% of Tigers were operationally available, compared to the 71% of Panzer IVs and 65% of Panthers.[67][68]
Indirect fire, the firing of a projectile without relying on direct line of sight between the gun and the target, possibly dates back to the 16th century.[29] Early battlefield use of indirect fire may have occurred at Paltzig in July 1759, when the Russian artillery fired over the tops of trees,[30] and at the Battle of Waterloo, where a battery of the Royal Horse Artillery fired Shrapnel indirectly against advancing French troops.[31]
In 1882, Russian Lieutenant Colonel KG Guk published Indirect Fire for Field Artillery, which provided a practical method of using aiming points for indirect fire by describing, "all the essentials of aiming points, crest clearance, and corrections to fire by an observer".[32]
A few years later, the Richtfläche (lining-plane) sight was invented in Germany and provided a means of indirect laying in azimuth, complementing the clinometers for indirect laying in elevation which already existed. Despite conservative opposition within the German army, indirect fire was adopted as doctrine by the 1890s. In the early 1900s, Goertz in Germany developed an optical sight for azimuth laying. It quickly replaced the lining-plane; in English, it became the 'Dial Sight' (UK) or 'Panoramic Telescope' (US).
The British halfheartedly experimented with indirect fire techniques since the 1890s, but with the onset of the Boer War, they were the first to apply the theory in practice in 1899, although they had to improvise without a lining-plane sight.[33]
In the next 15 years leading up to World War I, the techniques of indirect fire became available for all types of artillery. Indirect fire was the defining characteristic of 20th-century artillery and led to undreamt of changes in the amount of artillery, its tactics, organisation, and techniques, most of which occurred during World War I.
An implication of indirect fire and improving guns was increasing range between gun and target, this increased the time of flight and the vertex of the trajectory. The result was decreasing accuracy (the increasing distance between the target and the mean point of impact of the shells aimed at it) caused by the increasing effects of non-standard conditions. Indirect firing data was based on standard conditions including a specific muzzle velocity, zero wind, air temperature and density, and propellant temperature. In practice, this standard combination of conditions almost never existed, they varied throughout the day and day to day, and the greater the time of flight, the greater the inaccuracy. An added complication was the need for survey to accurately fix the coordinates of the gun position and provide accurate orientation for the guns. Of course, targets had to be accurately located, but by 1916, air photo interpretation techniques enabled this, and ground survey techniques could sometimes be used.
[16] The German 15cm field howitzers during World War IIn 1914, the methods of correcting firing data for the actual conditions were often convoluted, and the availability of data about actual conditions was rudimentary or non-existent, the assumption was that fire would always be ranged (adjusted). British heavy artillery worked energetically to progressively solve all these problems from late 1914 onwards, and by early 1918, had effective processes in place for both field and heavy artillery. These processes enabled 'map-shooting', later called 'predicted fire'; it meant that effective fire could be delivered against an accurately located target without ranging. Nevertheless, the mean point of impact was still some tens of yards from the target-centre aiming point. It was not precision fire, but it was good enough for concentrations and barrages. These processes remain in use into the 21st Century with refinements to calculations enabled by computers and improved data capture about non-standard conditions.
The British major-generalHenry Hugh Tudor pioneered armour and artillery cooperation at the breakthrough Battle of Cambrai. The improvements in providing and using data for non-standard conditions (propellant temperature, muzzle velocity, wind, air temperature, and barometric pressure) were developed by the major combatants throughout the war and enabled effective predicted fire.[34] The effectiveness of this was demonstrated by the British in 1917 (at Cambrai) and by Germany the following year (Operation Michael).
Major General J.B.A. Bailey, British Army (retired) wrote:
From the middle of the eighteenth century to the middle of the nineteenth, artillery is judged to have accounted for perhaps 50% of battlefield casualties. In the sixty years preceding 1914, this figure was probably as low as 10 percent. The remaining 90 percent fell to small arms, whose range and accuracy had come to rival those of artillery. ... [By WWI] The British Royal Artillery, at over one million men, grew to be larger than the Royal Navy. Bellamy (1986), pp. 1–7, cites the percentage of casualties caused by artillery in various theaters since 1914: in the First World War, 45 percent of Russian casualties and 58 percent of British casualties on the Western Front; in the Second World War, 75 percent of British casualties in North Africa and 51 percent of Soviet casualties (61 percent in 1945) and 70 percent of German casualties on the Eastern Front; and in the Korean War, 60 percent of US casualties, including those inflicted by mortars.[35]
— J.B.A. Bailey (2004). Field artillery and firepowerAn estimated 75,000 French soldiers were casualties of friendly artillery fire in the four years of World War I.[36]
Precision-guided artillery[]
[17]M982 Excalibur guided artillery shellModern artillery is most obviously distinguished by its long range, firing an explosiveshell or rocket and a mobile carriage for firing and transport. However, its most important characteristic is the use of indirect fire, whereby the firing equipment is aimed without seeing the target through its sights. Indirect fire emerged at the beginning of the 20th century and was greatly enhanced by the development of predicted fire methods in World War I. However, indirect fire was area fire; it was and is not suitable for destroying point targets; its primary purpose is area suppression. Nevertheless, by the late 1970s precision-guided munitions started to appear, notably the US 155 mm Copperhead and its Soviet 152 mm Krasnopol equivalent that had success in Indian service. These relied on laser designation to 'illuminate' the target that the shell homed onto. However, in the early 21st Century, the Global Positioning System (GPS) enabled relatively cheap and accurate guidance for shells and missiles, notably the US 155 mm Excalibur and the 227 mm GMLRS rocket. The introduction of these led to a new issue, the need for very accurate three dimensional target coordinates—the mensuration process.
Weapons covered by the term 'modern artillery' include "cannon" artillery (such as howitzer, mortar, and field gun) and rocket artillery. Certain smaller-caliber mortars are more properly designated small arms rather than artillery, albeit indirect-fire small arms. This term also came to include coastal artillery which traditionally defended coastal areas against seaborne attack and controlled the passage of ships. With the advent of powered flight at the start of the 20th century, artillery also included ground-based anti-aircraft batteries.
The term "artillery" has traditionally not been used for projectiles with internal guidance systems, preferring the term "missilery",[citation needed] though some modern artillery units employ surface-to-surface missiles. Advances in terminal guidance systems for small munitions has allowed large-caliber guided projectiles to be developed, blurring this distinction.
Ammunition[]
One of the most important roles of logistics is the supply of munitions as a primary type of artillery consumable, their storage (ammunition dump, arsenal, magazine ) and the provision of fuses, detonators and warheads at the point where artillery troops will assemble the charge, projectile, bomb or shell.
A round of artillery ammunition comprises four components:
Main article: Artillery fuzeFuzes are the devices that initiate an artillery projectile, either to detonate its high explosive (HE) filling or eject its cargo (illuminating flare or smoke canisters being examples). The official military spelling is "fuze".[37] Broadly there are four main types:
Most artillery fuzes are nose fuzes. However, base fuzes have been used with armour piercing shells and for squash head (HESH or HEP) anti-tank shells. At least one nuclear shell and its non-nuclear spotting version also used a multi-deck mechanical time fuze fitted into its base.
Impact fuzes were, and in some armies remain, the standard fuze for HE projectiles. Their default action is normally 'superquick', some have had a 'graze' action which allows them to penetrate light cover and others have 'delay'. Delay fuzes allow the shell to penetrate the ground before exploding. Armor- or concrete-piercing fuzes are specially hardened. During World War I and later, ricochet fire with delay or graze fuzed HE shells, fired with a flat angle of descent, was used to achieve airburst.
HE shells can be fitted with other fuzes. Airburst fuzes usually have a combined airburst and impact function. However, until the introduction of proximity fuzes, the airburst function was mostly used with cargo munitions—for example, shrapnel, illumination, and smoke. The larger calibers of anti-aircraft artillery are almost always used airburst. Airburst fuzes have to have the fuze length (running time) set on them. This is done just before firing using either a wrench or a fuze setter pre-set to the required fuze length.
Early airburst fuzes used igniferous timers which lasted into the second half of the 20th century. Mechanical time fuzes appeared in the early part of the century. These required a means of powering them. The Thiel mechanism used a spring and escapement (i.e. 'clockwork'), Junghans used centrifugal force and gears, and Dixi used centrifugal force and balls. From about 1980, electronic time fuzes started replacing mechanical ones for use with cargo munitions.
Proximity fuzes have been of two types: photo-electric or radar. The former was not very successful and seems only to have been used with British anti-aircraft artillery 'unrotated projectiles' (rockets) in World War II. Radar proximity fuzes were a big improvement over the mechanical (time) fuzes which they replaced. Mechanical time fuzes required an accurate calculation of their running time, which was affected by non-standard conditions. With HE (requiring a burst 20 to 30 feet (9.1 m) above the ground), if this was very slightly wrong the rounds would either hit the ground or burst too high. Accurate running time was less important with cargo munitions that burst much higher.
The first radar proximity fuzes (codenamed 'VT') were invented by the British and developed by the US and initially used against aircraft in World War II. Their ground use was delayed for fear of the enemy recovering 'blinds' (artillery shells which failed to detonate) and copying the fuze. The first proximity fuzes were designed to detonate about 30 feet (9.1 m) above the ground. These air-bursts are much more lethal against personnel than ground bursts because they deliver a greater proportion of useful fragments and deliver them into terrain where a prone soldier would be protected from ground bursts.
However, proximity fuzes can suffer premature detonation because of the moisture in heavy rain clouds. This led to 'controlled variable time' (CVT) after World War II. These fuzes have a mechanical timer that switched on the radar about 5 seconds before expected impact, they also detonated on impact.
The proximity fuze emerged on the battlefields of Europe in late December 1944. They have become known as the U.S. Artillery's "Christmas present", and were much appreciated when they arrived during the Battle of the Bulge. They were also used to great effect in anti-aircraft projectiles in the Pacific against kamikaze as well as in Britain against V-1 flying bombs.[38]
Electronic multi-function fuzes started to appear around 1980. Using solid-state electronics they were relatively cheap and reliable, and became the standard fitted fuze in operational ammunition stocks in some western armies. The early versions were often limited to proximity airburst, albeit with height of burst options, and impact. Some offered a go/no-go functional test through the fuze setter.
Later versions introduced induction fuze setting and testing instead of physically placing a fuze setter on the fuze. The latest, such as Junghan's DM84U provide options giving, superquick, delay, a choice of proximity heights of burst, time and a choice of foliage penetration depths.
A new type of artillery fuze will appear soon. In addition to other functions these offer some course correction capability, not full precision but sufficient to significantly reduce the dispersion of the shells on the ground.
Traditionally, projectiles have been classified as "shot" or "shell", the former being solid and the latter having some form of "payload".
Shells can also be divided into three configurations: bursting, base ejection or nose ejection. The latter is sometimes called the shrapnel configuration. The most modern is base ejection, which was introduced in World War I. Both base and nose ejection are almost always used with airburst fuzes. Bursting shells use various types of fuze depending on the nature of the payload and the tactical need at the time.
Payloads have included:
Bursting: high-explosive, white phosphorus ("Willie Pete" or "Wilson Picket"),[citation needed] coloured marker, chemical, nuclear devices; high explosive anti-tank (HEAT) and canister may be considered special types of bursting shell.
Nose Ejection: shrapnel, star, incendiary and flechette (a more modern version of shrapnel).
Base Ejection: dual purpose improved conventional munitions (DPICM)-bomblets, which arm themselves and function after a set number of rotations after having been ejected from the projectile (this produces unexploded sub-munitions, or "duds", which remain dangerous), scatterable mines, illuminating, coloured flare, smoke, incendiary, propaganda, chaff[39] (foil to jam radars)[40] and modern exotics such as electronic payloads and sensor-fuzed munitions.
Stabilization[]
Rifled Traditionally, artillery projectiles have been spin-stabilised, meaning that they spin in flight so that gyroscopic forces prevent them from tumbling. Spin is induced by gun barrels having rifling which engages a soft metal band around the projectile, called a "driving band" (UK) or "rotating band" (U.S.). The driving band is usually made of copper, but synthetic materials have also been used.
Smoothbore/Fin-Stabilized In modern artillery, smoothbore tubes have been used mostly by mortars. These projectiles use fins in the airflow at their rear to maintain correct orientation. The primary benefits over rifled barrels is reduced barrel wear, longer ranges that can be achieved (due to the reduced loss of energy to friction and gas escaping around the projectile via the rifling) and larger explosive cores for a given caliber artillery due to less metal needing to be used to form the case of the projectile because of less force applied to the shell from the non-rifled sides of the barrel of smooth bore guns.
Rifled/Fin-Stabilized A combination of the above can be used, where the barrel is rifled, but the projectile also has deployable fins for stabilization,[41] guidance[42] or gliding.[43]
Propellant[]
[19]152 mm howitzer D-20 during the Iran–Iraq War.Most forms of artillery require a propellant to propel the projectile at the target. Propellant is always a low explosive, this means it deflagrates instead of detonating, as with high explosives. The shell is accelerated to a high velocity in a very short time by the rapid generation of gas from the burning propellant. This high pressure is achieved by burning the propellant in a contained area, either the chamber of a gun barrel or the combustion chamber of a rocket motor.
Until the late 19th century, the only available propellant was black powder. Black powder had many disadvantages as a propellant; it has relatively low power, requiring large amounts of powder to fire projectiles, and created thick clouds of white smoke that would obscure the targets, betray the positions of guns, and make aiming impossible. In 1846, nitrocellulose (also known as guncotton) was discovered, and the high explosive nitroglycerin was discovered at much the same time. Nitrocellulose was significantly more powerful than black powder, and was smokeless. Early guncotton was unstable, however, and burned very fast and hot, leading to greatly increased barrel wear. Widespread introduction of smokeless powder would wait until the advent of the double-base powders, which combine nitrocellulose and nitroglycerin to produce powerful, smokeless, stable propellant.
Many other formulations were developed in the following decades, generally trying to find the optimum characteristics of a good artillery propellant; low temperature, high energy, non-corrosive, highly stable, cheap, and easy to manufacture in large quantities. Broadly, modern gun propellants are divided into three classes: single-base propellants which are mainly or entirely nitrocellulose based, double-base propellants composed of a combination of nitrocellulose and nitroglycerin, and triple base composed of a combination of nitrocellulose and nitroglycerin and Nitroguanidine.
Artillery shells fired from a barrel can be assisted to greater range in three ways:
rocket-assisted projectiles (RAP) enhance and sustain the projectile's velocity by providing additional 'push' from a small rocket motor that is part of the projectile's base.
Base bleed uses a small pyrotechnic charge at the base of the projectile to introduce sufficient combustion products into the low-pressure region behind the base of the projectile responsible for a large proportion of the drag.
ramjet-assisted, similar to rocket-assisted, but using a ramjet instead of a rocket motor; it is anticipated that a ramjet-assisted 120-mm mortar shell could reach a range of 22 mi (35 km).[44]
Propelling charges for tube artillery can be provided in one of two ways: either as cartridge bags or in metal cartridge cases. Generally, anti-aircraft artillery and smaller-caliber (up to 3" or 76.2 mm) guns use metal cartridge cases that include the round and propellant, similar to a modern rifle cartridge. This simplifies loading and is necessary for very high rates of fire. Bagged propellant allows the amount of powder to be raised or lowered, depending on the range to the target. It also makes handling of larger shells easier. Each requires a totally different type of breech to the other. A metal case holds an integral primer to initiate the propellant and provides the gas seal to prevent the gases leaking out of the breech; this is called obturation. With bagged charges, the breech itself provides obturation and holds the primer. In either case, the primer is usually percussion, but electrical is also used, and laser ignition is emerging. Modern 155 mm guns have a primer magazine fitted to their breech.
[20] Battleship Ammunition: 16" artillery shells aboard one of the United States Iowa-classbattleships.Artillery ammunition has four classifications according to use:
Service: ammunition used in live fire training or for wartime use in a combat zone. Also known as "warshot" ammunition.
Practice: Ammunition with a non- or minimally-explosive projectile that mimics the characteristics (range, accuracy) of live rounds for use under training conditions. Practice artillery ammunition often utilizes a colored-smoke-generating bursting charge for marking purposes in place of the normal high-explosive charge.
Dummy: Ammunition with an inert warhead, inert primer, and no propellant; used for training or display.
Blank: Ammunition with live primer, greatly reduced propellant charge (typically black powder), and no projectile; used for training, demonstration or ceremonial use.
[22]Cyclone of the 320th French Artillery, in Hoogstade, Belgium, September 5, 1917.Because field artillery mostly uses indirect fire the guns have to be part of a system that enables them to attack targets invisible to them in accordance with the combined arms plan.
The main functions in the field artillery system are:
Communications
Command: authority to allocate resources;
Target acquisition: detect, identify and deduce the location of targets;
Control: authority to decide which targets to attack and allot fire units to the attack;
Computation of firing data – to deliver fire from a fire unit onto its target;
Fire units: guns, launchers or mortars grouped together;
Specialist services: produce data to support the production of accurate firing data;
Logistic services: to provide combat supplies, particularly ammunition, and equipment support.
All these calculations to produce a quadrant elevation (or range) and azimuth were done manually using instruments, tablulated, data of the moment, and approximations until battlefield computers started appearing in the 1960s and 1970s. While some early calculators copied the manual method (typically substituting polynomials for tabulated data), computers use a different approach. They simulate a shell's trajectory by 'flying' it in short steps and applying data about the conditions affecting the trajectory at each step. This simulation is repeated until it produces a quadrant elevation and azimuth that lands the shell within the required 'closing' distance of the target coordinates. NATO has a standard ballistic model for computer calculations and has expanded the scope of this into the NATO Armaments Ballistic Kernel (NABK)[45] within the SG2 Shareable (Fire Control) Software Suite (S4).
Logistics[]
Supply of artillery ammunition has always been a major component of military logistics. Up until World War I some armies made artillery responsible for all forward ammunition supply because the load of small arms ammunition was trivial compared to artillery. Different armies use different approaches to ammunition supply, which can vary with the nature of operations. Differences include where the logistic service transfers artillery ammunition to artillery, the amount of ammunition carried in units and extent to which stocks are held at unit or battery level. A key difference is whether supply is 'push' or 'pull'. In the former the 'pipeline' keeps pushing ammunition into formations or units at a defined rate. In the latter units fire as tactically necessary and replenish to maintain or reach their authorised holding (which can vary), so the logistic system has to be able to cope with surge and slack.
Classification of artillery[]
Artillery types can be categorised in several ways, for example by type or size of weapon or ordnance, by role or by organizational arrangements.
Types of ordnance[]
The types of cannon artillery are generally distinguished by the velocity at which they fire projectiles. Types of artillery:
[23]German ArmyPzH 2000 self-propelled artillery
Heavy artillery: capable of firing a long distance to bombard its target.
Field artillery: mobile weapons used to support armies in the field. Subcategories include:
anti-aircraft artillery: weapons, usually mobile, designed for attacking aircraft from the ground. Some guns were suitable for dual-role anti-aircraft and field (anti-tank) use. The World War II German 88 mm gun was a famous example.
Naval artillery: guns mounted on warships and used either against other ships or in support of ground forces. The crowning achievement of naval artillery was the battleship, but the advent of airpower and missiles have rendered this type of artillery largely obsolete. They are typically longer-barreled, low-trajectory, high-velocity weapons designed primarily for a direct-fire role.
Coastal artillery: Fixed-position weapons dedicated to defense of a particular location, usually a coast (for example, the Atlantic Wall in World War II) or harbor. Not needing to be mobile, coastal artillery used to be much larger than equivalent field artillery pieces, giving them longer range and more destructive power. Modern coastal artillery (for example, Russia's "Bereg" system) is often self-propelled, (allowing it to avoid counter-battery fire) and fully integrated, meaning that each battery has all of the support systems that it requires (maintenance, targeting radar, etc.) organic to its unit.
Modern field artillery can also be split into two other subcategories: towed and self-propelled. As the name suggests, towed artillery has a prime mover, usually an artillery tractor or truck, to move the piece, crew, and ammunition around. Towed artillery is in some cases equipped with an APU for small displacements. Self-propelled artillery is permanently mounted on a carriage or vehicle with room for the crew and ammunition and is thus capable of moving quickly from one firing position to another, both to support the fluid nature of modern combat and to avoid counter-battery fire. It includes mortar carrier vehicles, many of which allow the mortar to be removed from the vehicle and be used dismounted, potentially in terrain in which the vehicle cannot navigate, or in order to avoid detection.
Organizational types[]
At the beginning of the modern artillery period, the late 19th century, many armies had three main types of artillery, in some case they were sub-branches within the artillery branch in others they were separate branches or corps. There were also other types excluding the armament fitted to warships:
[25] Horse-drawn artillery.[26] Man-pulled artillery.[27] Australian gunners, wearing gas masks, operate a 9.2-inch (230 mm) howitzer during World War I.
Horse artillery, first formed as regular units in the late 18th century, with the role of supporting cavalry, they were distinguished by the entire crew being mounted.
Field or "foot" artillery, the main artillery arm of the field army, using either guns, howitzers, or mortars. In World War II this branch again started using rockets and later surface to surface missiles.
Fortress or garrison artillery, manned a nation's fixed defences using guns, howitzers or mortars, either on land or coastal frontiers. Some had deployable elements to provide heavy artillery to the field army. In some nations coast defence artillery was a naval responsibility.
Mountain artillery, a few nations treated mountain artillery as a separate branch, in others it was a speciality in another artillery branch. They used light guns or howitzers, usually designed for pack animal transport and easily broken down into small easily handled loads
Naval artillery, some nations carried pack artillery on some warships, these were used and manhandled by naval (or marine) landing parties. At times, part of a ship's armament would be unshipped and mated to makeshift carriages and limbers for actions ashore, for example during the Second Boer War, during the First World War the guns from the stricken SMS Königsberg formed the main artillery strength of the German forces in East Africa.
[28] Firing of an 18-pound gun, Louis-Philippe Crepin, (1772–1851)After World War I many nations merged these different artillery branches, in some cases keeping some as sub-branches. Naval artillery disappeared apart from that belonging to marines. However, two new branches of artillery emerged during that war and its aftermath, both used specialised guns (and a few rockets) and used direct not indirect fire, in the 1950s and 1960s both started to make extensive use of missiles:
Anti-tank artillery, also under various organisational arrangements but typically either field artillery or a specialist branch and additional elements integral to infantry, etc., units. However, in most armies field and anti-aircraft artillery also had at least a secondary anti-tank role. After World War II anti-tank in Western armies became mostly the responsibility of infantry and armoured branches and ceased to be an artillery matter, with some exceptions.
Anti-aircraft artillery, under various organisational arrangements including being part of artillery, a separate corps, even a separate service or being split between army for the field and airforce for home defence. In some cases infantry and the new armoured corps also operated their own integral light anti-aircraft artillery. Home defence anti-aircraft artillery often used fixed as well as mobile mountings. Some anti-aircraft guns could also be used as field or anti-tank artillery, providing they had suitable sights.
However, the general switch by artillery to indirect fire before and during World War I led to a reaction in some armies. The result was accompanying or infantry guns. These were usually small, short range guns, that could be easily man-handled and used mostly for direct fire but some could use indirect fire. Some were operated by the artillery branch but under command of the supported unit. In World War II they were joined by self-propelled assault guns, although other armies adopted infantry or close support tanks in armoured branch units for the same purpose, subsequently tanks generally took on the accompanying role.
Equipment types[]
The three main types of artillery "gun" are guns, howitzers, and mortars. During the 20th century, guns and howitzers have steadily merged in artillery use, making a distinction between the terms somewhat meaningless. By the end of the 20th century, true guns with calibers larger than about 60 mm had become very rare in artillery use, the main users being tanks, ships, and a few residual anti-aircraft and coastal guns. The term "cannon" is a United States generic term that includes guns, howitzers, and mortars; it is not used in other English speaking armies.
The traditional definitions differentiated between guns and howitzers in terms of maximum elevation (well less than 45° as opposed to close to or greater than 45°), number of charges (one or more than one charge), and having higher or lower muzzle velocity, sometimes indicated by barrel length. These three criteria give eight possible combinations, of which guns and howitzers are but two. However, modern "howitzers" have higher velocities and longer barrels than the equivalent "guns" of the first half of the 20th century.
True guns are characterized by long range, having a maximum elevation significantly less than 45°, a high muzzle velocity and hence a relatively long barrel, smooth bore (no rifling) and a single charge. The latter often led to fixed ammunition where the projectile is locked to the cartridge case. There is no generally accepted minimum muzzle velocity or barrel length associated with a gun.
[29] A British 60-pounder (5-inch (130 mm)) gun at full recoil, in action during the Battle of Gallipoli, 1915. Photo by Ernest Brooks.Howitzers can fire at maximum elevations at least close to 45°; elevations up to about 70° are normal for modern howitzers. Howitzers also have a choice of charges, meaning that the same elevation angle of fire will achieve a different range depending on the charge used. They have rifled bores, lower muzzle velocities and shorter barrels than equivalent guns. All this means they can deliver fire with a steep angle of descent. Because of their multi-charge capability, their ammunition is mostly separate loading (the projectile and propellant are loaded separately).
That leaves six combinations of the three criteria, some of which have been termed gun howitzers. A term first used in the 1930s when howitzers with a relatively high maximum muzzle velocities were introduced, it never became widely accepted, most armies electing to widen the definition of "gun" or "howitzer". By the 1960s, most equipments had maximum elevations up to about 70°, were multi-charge, had quite high maximum muzzle velocities and relatively long barrels.
Mortars are simpler. The modern mortar originated in World War I and there were several patterns. After that war, most mortars settled on the Stokes pattern, characterized by a short barrel, smooth bore, low muzzle velocity, elevation angle of firing generally greater than 45°, and a very simple and light mounting using a "baseplate" on the ground. The projectile with its integral propelling charge was dropped down the barrel from the muzzle to hit a fixed firing pin. Since that time, a few mortars have become rifled and adopted breech loading.
There are other recognized typifying characteristics for artillery. One such characteristic is the type of obturation used to seal the chamber and prevent gases escaping through the breech. This may use a metal cartridge case that also holds the propelling charge, a configuration called "QF" or "quickfiring" by some nations. The alternative does not use a metal cartridge case, the propellant being merely bagged or in combustible cases with the breech itself providing all the sealing. This is called "BL" or "breech loading" by some nations.
A second characteristic is the form of propulsion. Modern equipment can either be towed or self-propelled (SP). A towed gun fires from the ground and any inherent protection is limited to a gun shield. Towing by horse teams lasted throughout World War II in some armies, but others were fully mechanized with wheeled or tracked gun towing vehicles by the outbreak of that war. The size of a towing vehicle depends on the weight of the equipment and the amount of ammunition it has to carry.
A variation of towed is portee, where the vehicle carries the gun which is dismounted for firing. Mortars are often carried this way. A mortar is sometimes carried in an armored vehicle and can either fire from it or be dismounted to fire from the ground. Since the early 1960s it has been possible to carry lighter towed guns and most mortars by helicopter. Even before that, they were parachuted or landed by glider from the time of the first airborne trials in the USSR in the 1930s.
In an SP equipment, the gun is an integral part of the vehicle that carries it. SPs first appeared during World War I, but did not really develop until World War II. They are mostly tracked vehicles, but wheeled SPs started to appear in the 1970s. Some SPs have no armor and carry little or no ammunition. Armoured SPs usually carry a useful ammunition load. Early armoured SPs were mostly a "casemate" configuration, in essence an open top armored box offering only limited traverse. However, most modern armored SPs have a full enclosed armored turret, usually giving full traverse for the gun. Many SPs cannot fire without deploying stabilizers or spades, sometimes hydraulic. A few SPs are designed so that the recoil forces of the gun are transferred directly onto the ground through a baseplate. A few towed guns have been given limited self-propulsion by means of an auxiliary engine.
Two other forms of tactical propulsion were used in the first half of the 20th century: Railways or transporting the equipment by road, as two or three separate loads, with disassembly and re-assembly at the beginning and end of the journey. Railway artillery took two forms, railway mountings for heavy and super-heavy guns and howitzers and armored trains as "fighting vehicles" armed with light artillery in a direct fire role. Disassembled transport was also used with heavy and super heavy weapons and lasted into the 1950s.
Caliber categories[]
A third form of artillery typing is to classify it as "light", "medium", "heavy" and various other terms. It appears to have been introduced in World War I, which spawned a very wide array of artillery in all sorts of sizes so a simple categorical system was needed. Some armies defined these categories by bands of calibers. Different bands were used for different types of weapons—field guns, mortars, anti-aircraft guns and coastal guns.
Artillery is a class of heavy military weapons built to fire munitions far beyond the range and power of infantry's small arms. Early artillery development focused on the ability to breach fortifications, and led to heavy, fairly immobile siege engines. As technology improved, lighter, more mobile field artillery developed for battlefield use. This development continues today; modern self-propelled artillery vehicles are highly mobile weapons of great versatility providing the largest share of an army's total firepower.
In its earliest sense, the word artillery referred to any group of soldiers primarily armed with some form of manufactured weapon or armour. Since the introduction of gunpowder and cannon, the word "artillery" has largely meant cannon, and in contemporary usage, it usually refers to shell-firing guns, howitzers, mortars, rockets and guided missiles. In common speech, the word artillery is often used to refer to individual devices, along with their accessories and fittings, although these assemblages are more properly called "equipments". However, there is no generally recognised generic term for a gun, howitzer, mortar, and so forth: the United States uses "artillery piece", but most English-speaking armies use "gun" and "mortar". The projectiles fired are typically either "shot" (if solid) or "shell" (if not). "Shell" is a widely used generic term for a projectile, which is a component of munitions.
By association, artillery may also refer to the arm of service that customarily operates such engines. In some armies one arm has operated field, coastal, anti-aircraft artillery and anti-tank artillery, in others these have been separate arms and in some nations coastal has been a naval or marine responsibility. In the 20th century technology based target acquisition devices, such as radar, and systems, such as sound ranging and flash spotting, emerged to acquire targets, primarily for artillery. These are usually operated by one or more of the artillery arms. The widespread adoption of indirect fire in the early 20th century introduced the need for specialist data for field artillery, notably survey and meteorological, in some armies provision of these are the responsibility of the artillery arm.
Artillery originated for use against ground targets—against infantry, cavalry and other artillery. An early specialist development was coastal artillery for use against enemy ships. The early 20th century saw the development of a new class of artillery for use against aircraft: anti-aircraft guns.
Artillery is arguably the most lethal form of land-based armament currently employed, and has been since at least the early Industrial Revolution. The majority of combat deaths in the Napoleonic Wars, World War I, and World War II were caused by artillery.[1] In 1944, Joseph Stalin said in a speech that artillery was "the God of War".[1]
