This is a device designed to propel the 60 kg. (132 lbs.) aircraft bomb out of an inclined trough.
The launcher is constructed of wood and metal with legs made of iron pipe. The rear is attached by a pin to a base plate with six wedge cut ground pins. The launcher channel is a right angle trough about twenty feet long with a motor and bomb positioner made of
The rocket motor resembles a blunt, short-bodied bomb. The propellant container is a cylinder with a cap welded on the front and a tail assembly and venturi tube secured on the rear. The propellant which weighs 12.94 pounds consists of three cylindrical sticks tied in a yellow silk bag. It is ignited by an igniter pad and an igniter fuze in the forward part of the motor by means of wires leading to a small hand blasting machine. When fired the motor propels the bomb from the launcher and then drops off. Ranges up to 1,300 yards are claimed by the Japanese for this device, but it is felt that little, if any, accuracy may be expected. It is evidently designed to deliver fire on beachheads and other similar wide targets at fairly short ranges.
SPECIFICATIONS
LAUNCHER | ||
Length of launcher (overall) | 19 ft., 10 ins. | |
Width at leg shoes | 8 ft., 5.5 ins. | |
Height at 30° range setting | 11 ft. | |
Length of leg | 12 ft., 4 ins. | |
Diameter of leg | 1.75 ins. | |
Width outside of trough at base | 10 ins. | |
Width outside of trough at front | 7.5 ins. | |
Width inside of trough at base | 8.5 ins. | |
Width inside of trough at front | 6 ins. | |
Length of cable from baseplate to leg | 20 ft., 3 ins. | |
ROCKET MOTOR | ||
Length of motor and bomb positioner (overall) | 4 ft., 3 ins. | |
Length of motor (overall) | 33 ins. | |
Length of propellant cylinder | 11.5 ins. | |
Diameter of propellant cylinder (outside) | 7.44 ins. | |
Diameter of venturi tube (outside) | 1.5 ins. | |
Length of tail fin | 11.75 ins. | |
Width of tail fin | 3.625 ins. | |
Width of tail, fin to fin | 11.875 ins. |
Japanese: p. 351 (April 1, 1945)