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SB 1000 Parachute Bomb
Over-All Length: 72 in.
Body Length: 65.5 in.
Elliptical Body: 31 by 16.5 in.
Wall Thickness: 0.06 to 0.125 in.
Main Filling: Dinitro benzine 48%; RDX 15%; ammonium nitrate 37%
Biscuit Filling: Ammonium nitrate 51%; Calcium nitrate 31%; RDX 16%
Charge/Weight ratio: 80%
Fuzing: E1AZ (55) A/M

CONSTRUCTION: The parallel sided body of the SB 1000 is made of steel plate and is roughly elliptical in end section. It is formed by two halves which are welded together externally. The bomb body is strengthened by a longitudinal bulkhead and two perforated diaphragms all welded into position. The base plate is welded into the body 2.5 inches from the end. The recess so formed is used to house the parachute container. The fuze pocket is welded into a slot in the longitudinal bulkhead. Nose plate is welded into position and has in it filling holes. There is a nose extension in the center of the nose plate which houses the impact switch 55 A/M fuze. The fuze pocket is connected to the impact switch by two wires which are housed in a metal tube. The parachute container, a thin metal box, is positioned between two ribs riveted to the base plate. It is secured to the base of the bomb by bolts. Inside the outer box an inner container is welded to the base of the outer box. Four extension springs are secured to the base of the inner container and are also attached to a plywood platform which is the base for the parachute. The parachute is folded on the plywood, the platform depressed, compressing the spring then held in place by canvas flaps secured over the top. The under flap carries a loop of cord which is threaded through eyelets of the other three flaps, a quick release pin is passed through the loop, thus retaining assembly against action of the spring.

OPERATION: On release from aircraft the quick release pin is withdrawn from the loop by a time parachute release which can be set for delays of 2, 3, 4, 5, or 6 seconds. This device obtains it's delay by means of a spring and cog wheel. The parachute is of course weave vegetable matter. Red, green, and blue parachutes have been found. There are 16 double parachute shroud lines.

SUSPENSION: Horizontal.

COLORS AND MARKINGS: The bomb casing is painted field gray with the following markings stenciled in black along the body.

All information for this entry were acquired from Army Technical manual TM 9-1985-2/Air Force Technical Order TO 39B-1A-9 GERMAN EXPLOSIVE ORDNANCE (Bombs, Fuzes, Rockets, Land Mines, Grenades & Igniters)


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