GB-4 (Glide Bomb No.4) | |
---|---|
Type | Guided Bomb |
Place of origin | United States |
Service history | |
In service | Combat Tested [1] [2] [3] |
Wars | World War II |
Production history | |
Produced | 1944 |
No. built | 1,200 |
Specifications | |
Mass | 2,535 lb (1,150 kg) |
Length | 12.2 ft (3.7 m) |
Diameter | 24 in (61 cm) |
Warhead weight | 2,000 lb (910 kg) |
Detonation mechanism | T62 Impact Fuze |
Engine | none |
Operational range | 17 mi (27 km) Preferred |
Maximum speed | 250–300 mph (400–480 km/h) |
Guidance system | Block III (AN/AXT-2) television equipment and remote radio control [1] |
GB-4 (Glide Bomb No.4) was a precision guided munition developed by the United States during World War II. [1] GB-4s used a television guidance system with the weapon being steered by a TV bombardier operating a joystick in the launch aircraft. [3]
The first GB-4s (then known as MX-607s) were tested at Eglin Air Force Base during August 1943. [2] During testing the GB-4's circular error probable accuracy was found to be 200 feet (61 m). [1] [4] The type was ordered into production on 15 January 1944. Although approved for operational use, the typed suffered from reliability problems throughout testing. [2]
The GB-4 was briefly used in combat [1] [3] by the 388th Bomber Group, [2] based in eastern England, but its performance was deemed unsatisfactory. [3] 1,200 GB-4's were delivered to the USAAF however poor combat results lead to a decision to halt further deliveries in February 1945. [2]
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