- Self-propelled anti-aircraft weapon
An anti-aircraft vehicle, also known as a self-propelled anti-aircraft weapon (SPAA) or self-propelled air defense system (SPAD), is a mobile vehicle with a dedicated anti-aircraft capability. The Russian equivalent of SPAAG is ZSU, for zenitnaya samokhodnaya ustanovka, ("anti-aircraft self-propelled mount").
Specific weapon systems used include machine guns, autocannons, larger guns, or missiles, and some mount both guns and longer-ranged missiles. Platforms used include both trucks and heavier combat vehicles such as APCs and tanks, which add protection from aircraft, artillery, and small arms fire for front line deployment.
Anti-aircraft guns are usually mounted in a quickly-traversing turret with a high rate of elevation, for tracking fast-moving aircraft. They are often in dual or quadruple mounts, allowing a high rate of fire. Today, missiles (generally mounted on similar turrets) have largely supplanted anti-aircraft guns.
First World War
Anti-aircraft machine guns have long been mounted on trucks, and these were quite common during World War I. A predecessor of the WW2 German "88" anti-aircraft gun, the WWI German 77 mm anti-aircraft gun, was truck-mounted and used to great effect against British tanks.
Between the wars the British developed the Birch gun, a general purpose artillery piece on an armoured tracked chassis capable of maintaining formation with their current tanks. The gun could be elevated for anti-aircraft use.
Among early pre-war pioneers of self-propelled AA guns were the Germans. By the time of the war, they fielded the SdKfz 10/4 and 6/2, cargo halftracks mounting single 20 mm or 37 mm AA guns (respectively). Later in the war similar German halftracks mounted quadruple 20 mm weapons.
Second World War
Larger guns followed on larger trucks, but these mountings generally required off-truck setup in order to unlimber the stabilizing legs these guns needed. One exception to this rule was the Italian Cannone da 90/53 which was highly effective when mounted on trucks, a fit known as the "autocannoni da 90/53". The 90/53 was a feared weapon, notably in the anti-tank role, but only a few hundred had been produced by the time of the armistice in 1943.
Other nations tended to work on truck chassis. Starting in 1941, the British developed the "en portee" method of mounting an anti-tank gun (initially a 2 pounder) on a truck. This was to prevent the weapon from being damaged by long-distance towing across rough, stony deserts, and it was intended only to be a carrying method, with the gun unloaded for firing. However, crews tended to fire their weapons from their vehicles for the mobility this method provided, with consequent casualties. This undoubtedly inspired their Morris C9/B (officially the "Carrier, SP, 4x4, 40 mm AA"), a Bofors 40 mm AA gun mounted on a chassis derived from the Morris "Quad" Field Artillery Tractor truck. Similar types, based on 3-ton lorries, were produced in Britain, Canada and Australia, and together formed the most numerous self-propelled AA guns in British service.
The U.S. Army brought truck-towed Bofors 40 mm AA guns along with truck-mounted units fitted with mechanized turrets when they sailed, first for Great Britain and then onto France. The turrets carried four .50 inch (12.7 mm) machine guns, which were designed to be adjusted to converge at the single point where enemy aircraft were expected to appear at low altitude in conduction of strafing runs directed at large infantry and field artillery units.
Interest in mobile AA turned to heavier vehicles with the mass and stability needed to easily train weapons of all sizes. Probably the desire, particularly in German service, for anti-aircraft vehicles to be armoured for their own protection also assisted this trend.
The concept of an armored SPAAG was pioneered by Hungary during World War II Hungary by producing the 40M Nimrod based on the Luftvärnskanonvagn L-62 Anti II license acquired from Sweden. Germany followed later with their "flakpanzer" series. German World War II SPAAGs include the Möbelwagen, Wirbelwind, Ostwind and Kugelblitz. Other forces followed with designs of their own, notably the American M16 created by mounting quadruple M2 machine guns on a M3 Half-track.
The British developed their own SPAAGs throughout the war mounting multiple machine guns and light cannon on various tank and armoured car chassis and by 1943, the Crusader AA tanks, which mounted the Bofors 40 mm gun or two-three Oerlikon 20 mm cannon. Although used during the Normandy landings, by that point German aircraft were contained by the Allies own air forces and they were largely unneeded.
Cold war and later
On occasion SPAAGs have been used as very effective direct fire weapons against infantry, for example by American forces during late World War II, in Korea against mass infantry assault, and extensively during the Vietnam War, where for example the U.S. M42 Duster SPAAG (based on a light tank) was employed purely for this purpose. Nowadays the system is rather superfluous due to the lack of a threat from sophisticated gunship helicopters, but development continues.
Modern weapons include the Russian ZSU-23-4 Shilka and Tunguska-M1, Chinese Type 95 SPAAA, Swedish CV9040 AAV, Polish PZA Loara, American M6 Bradley Linebacker and M1097 Humvee Avenger, Yugoslavian BOV-3, Canadian ADATS, aging German Gepard, Japanese Type 87 SPAAG and similar versions with the British Marksman turret (which was also adapted for a number of other users), Italian SIDAM 25 and Otomatic, and versions of the French AMX-13. Older post-war examples include the ZSU-57-2, M163 VADS (mounting the Vulcan cannon) and failed M247 Sergeant York.
- Man-portable air-defense systems
- Flakpanzer, a collective term for German anti-aircraft tanks, particularly those used in World War II.
- List of anti-aircraft guns
Wikimedia Foundation. 2010.
Look at other dictionaries:
Type 87 Self-Propelled Anti-Aircraft Gun — Infobox Weapon name=Mitsubishi Type 87 caption=Type 87 SPAAG on display origin=flag|Japan type=Self propelled anti aircraft gun is vehicle=yes designer=Mitsubishi Heavy Industries, Japan Steel Works manufacturer=Mitsubishi Heavy Industries design … Wikipedia
Anti-aircraft warfare — Anti aircraft warfare, or air defense, is any method of engaging hostile military aircraft in defence of ground objectives, ground or naval forces or denial of passage through a specific airspace region, area or anti aircraft combat zone [ The… … Wikipedia
Self-propelled artillery — British AS 90s firing in Basra, Iraq, 2006 … Wikipedia
Marksman anti-aircraft system — T 55AM Marksman Finnish ItPsv 90 Type SPAAG Place of origin … Wikipedia
Type 63 anti-aircraft gun — Infobox Weapon is vehicle=yes type=Anti aircraft gun origin=People s Republic of China name = Type 63 crew = 6 caption = length = 6.432 m (21 ft 1 in) width = 2.99 m (9 ft 10 in) height = 2.99 m (9 ft 10 in) weight = 32 tonnes (35.2 tons) engine … Wikipedia
Skink anti-aircraft tank — Infobox Weapon name=Skink Antiaircraft Tank caption= origin=Canadamanufacturer= service=type=self propelled anti aircraft gun is vehicle=yes crew=4 length=19 ft 1 in (5.82 m) width=8 ft 7 in (2.62 m) height=9 ft 10 in (3 m) clearance=17 inches… … Wikipedia
Anti-tank warfare — Anti tank refers to any method of combating military armored fighting vehicles, notably tanks. The most common anti tank systems include artillery with a high muzzle velocity, missiles (such as wire guided HEAT), various autocannons firing… … Wikipedia
Weapon mount — A weapon mount is a weapon component used to secure an armament. Weapon mounts can be broken down into two categories: static mounts and non static mounts. Contents 1 Static mount 1.1 Turret 1.2 Coaxial 1.3 Fixed … Wikipedia
Air Defense Anti-Tank System — Infobox Weapon name=ADATS caption=ADATS test firing origin=CAN type=Self propelled anti aircraft weapon is vehicle=yes length=4.86 m width=2.69 m height= weight=15.8 tonnes suspension=torsion bar speed=58 km/h vehicle range=400 km primary… … Wikipedia
Rocket-propelled grenade — RPG, or rocket propelled grenade, is a loose term describing hand held, shoulder launched anti tank weapons capable of firing an unguided rocket equipped with an explosive warhead. RPG is a transliteration of РПГ, the Russian abbreviation of… … Wikipedia