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American TV-guided bomb
GB-4 (Glide Bomb No.4)
[1]
[2]
[3]
|
---|
|
Type
| Guided Bomb
|
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Place of origin
| United States
|
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|
In service
| Combat Tested
[1]
[2]
[4]
|
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Wars
| World War II
|
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|
Produced
| 1944
|
---|
No.
built
| 1,200
|
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|
Mass
| 2,535 lb (1,150 kg)
|
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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
|
---|
| 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.
[4]
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]
[3]
The type was ordered into production on the 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]
[4]
by the
388th Bomber Group
,
[2]
based in eastern England, but its performance was deemed unsatisfactory.
[4]
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]
See also
[
edit
]
References
[
edit
]