Cambridge Encyclopedia :: Cambridge Encyclopedia Vol. 9

bazooka - Development, Service, Variants, Specifications

A US infantry weapon developed during World War 2 which fires a small rocket projectile from a simple launching tube. The projectile's warhead is effective against light tank armour.

Launcher, Rocket, Antitank, M-9 Series

Type Recoiless Rocket Antitank Weapon
Place of origin USA
Service history
In service 1942 -
Used by US Army; US Marine Corps
Wars World War II; Korea
Production history
Designer U.S. Army Signal Corps

The bazooka was a man-portable anti-tank rocket launcher made famous during World War II where it was one of the United States Armed Forces's primary infantry anti-tank weapons.

In addition to an actual bazooka, the word bazooka (incorrectly)is often used to refer to all similar rocket weapons, such as(RPGs).

Development

The development of the Bazooka involved the development of two specific lines of technology: the rocket-powered (recoilless) weapon, and the shaped-charge warhead.

The development of the Rocket Powered Recoilless Weapon was the brainchild of Dr. Robert H. Goddard, during his tenure at Worcester Polytechnic Institute, Clark University, and at Mount Wilson Observatory, devised a tube rocket for military use during World War I. He successfully demonstrated his tube-fired rocket to the US Army Signal Corps at Aberdeen Proving Ground, Maryland, on November 6, 1918, but the end of the war only five days later killed interest in the weapon.

Mohaupt developed a shaped-charge hand grenade for anti-tank use that was effective at defeating up to 100 mm (4 in) of armor, by far the best such weapon in the world at the time. This consisted of a 54-inch-long (1.37 m) tube with a simple wooden stock and sights (replaced by metal in the production models), into which the 60.07 mm (designated 2.36-inch to avoid confusion with rounds for the 60 mm mortar) rocket grenades were inserted at the rear. This changed the weapon specifications to a tube length of 55 inches (1.4 meter) and a weight of 14 lb (6.35 kg), the replacement of the battery with a magneto operated through the trigger, and a trigger safety that isolated the magneto to prevent the firing dud rounds when the trigger was released and the storage of a charge that would prematurely fire the next round. It was the success of the Panzerschreck that caused the original bazooka to be reworked after the war to the larger 3.5-inch (88.9 mm) model that was identical in size and power to the German weapon.

Service

The original bazooka (2.36-inch) in its various models served in all theatres of the Second World War and later in the Korean War. After it proved inadequate against the Soviet T-34 tank during the latter war (as it had against German Tigers and Panthers in the former), it was replaced with the M20 Super Bazooka (3.5-inch or 89 mm) model. Bazookas were replaced in some roles by 57 mm and 75 mm recoilless rifles in the last battles of WWII (1945).

Variants

Rocket Launcher, M1A1 "Bazooka"

First issued July 1942.

Rocket Launcher, M9 "Bazooka"

Improved model Supplanted M1A1 in 1943.

Rocket Launcher, M20A1 "Super Bazooka"

Larger 3.5 in (89 mm) diameter warhead. Entered service at start of Korean War

Rocket Launcher, M20A1B1 "Super Bazooka"

Lightweight version with barrels made of cast aluminum, and other components simplified Used as a supplement to the M20A1

Specifications

M1A1

Length: 50 in (137 cm) Caliber: 60 mm (2.36 in) Weight: 15 lb (6.8 kg) Warhead: M6A1 shaped charge (3.5 lb, 1.59 kg) Range Maximum: 400 yards (365 m) Effective: 150 yards (135 m) Crew: 2, operator and loader

M9A1

Length: 61 in (1,550 mm) Caliber: 60 mm (2.36 in) Weight: 15.9 lb Warhead: M6A3/C shaped charge (3.5 lb) Range Maximum: 400–500 yards (350–450 m) Effective: 120 yards (110 m) Crew: 2, operator and loader(M9) or 1, operator+loader(M9A1)

M20A1/A1B1

Length (when assembled for firing): 60 in (1,524 mm) Caliber: 89 mm (3.5 in) Weight (Unloaded): M20A1: 14 lb (6.4 kg); M20A1B1: 13 lb (5.9 kg) Warhead: M28A2 HEAT (9 lb) or T127E3/M30 WP (8.96 lb) Range Maximum: 900 yds (823 m) Effective (Stationary Target/Moving Target): 300 yd (275 m)/200 yd (185 m) Crew: 2, operator and loader)
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