STAR Series (Thiokol)

Thiokol STAR motors cover a wide range of capabilities, from small 5" diameter stage separation retro rockets to a 75" diameter demonstration engine designed for perigee kick. Presented here is the STAR 48A, currently in use as a Space Shuttle upper stage.

STAR-48
Engine statistics
Specification STAR 48A
Propellants Ap / Al (???)
Max thrust 21140 lb
Average thrust 17,300 lb
Weight 5674 lb
Burn time 88 s
Effective specific impulse 283.4
Total impulse 1,528,409 lbf-s
Expansion ratio 27.3
Mass fraction .94
Chamber pressure 542 psia






















SRSM : Castor