Method of ejecting an interceptor missile from its silo

Details Method of ejecting an interceptor missile from its silo Method of ejecting an interceptor missile from its silo

1977-03-10

1991-06-11

Brown, David H.

Ordnance

Rocket launching

Method of making

60256, 102374, 102380, 264 31, F41F 304, F02K 900, F42B 1510

Patent

active

050223062

ABSTRACT:
Disclosed is a method for ejecting an interceptor missile from the silo in hich it is stored. The method employs an ultrahigh-burning rate (e.g., burning rate 10-20 inches per second) booster solid propellant grain in combination with a fuse or a combination of fuses having a burning rate (e.g. 25 to 100 inches per second) or a rate which is well above that of the ultrahigh-burning rate booster solid propellant grain. The fuses are designed to a predetermined exterior contour which is the same as the exterior contour of the mandrel which would normally be used to provide the contour to the internal perforation of the booster propellant grain. The method include positioning the fuses longitudinally in the booster motor instead of the normally used mandrel, and then casting the propellant around the fuse or a combination of fuses and curing the propellant to yield a booster solid propellant grain. When the fuses are ignited by means of aft end ignition, their burning rapidly creates a port in the center of the booster solid propellant grain. When the burning of the fuses is near complete, and the propellant becomes exposed, the booster propellant commences burning, and then provides the propulsive power to boost the ballistic interceptor from its storage silo.

REFERENCES:
patent: 3041914 (1962-07-01), Gurton et al.
patent: 3107620 (1963-10-01), O'Donnell
patent: 3137126 (1964-06-01), Madison
patent: 3267672 (1966-08-01), Craig et al.
patent: 3324795 (1967-06-01), Miles et al.
patent: 3570364 (1971-03-01), Thibodaux
patent: 3696749 (1972-10-01), Scanlon

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