Development of the 23KS20000 motor (thrust of 20000 lbf. for 23 sec.) for the Black Brant IIB vehicle was completed in September 1964. The motor has a diameter of 17 in., a parallel length of 180 in., and contains approximately 2100 lb. of CARDEPLEX (aluminized ammonium perchlorate/polyurethane) propellant. This paper traces the development history of the motor with emphasis on the internal ballistics. Axial combustion instability was the factor which dictated the pace of the motor development. Experimental investigations led to a method of 'tailoring' propellant compositions to obtain optimum combustion stability characteristics at prescribed burning rates. This method was used in the selection of the propellant for the 23KS20000 motor. (Author)
Development of the 23ks20000 Motor for the Black Brant Iib Vehicle
1965
2 pages
Report
No indication
English
Development of 23KS20000 motor for Black Brant IIB vehicle
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