AKA: 63-KS-10,625;TE-M-783. Status: In Production. Number: 6 . Thrust: 47.90 kN (10,768 lbf). Gross mass: 1,147 kg (2,528 lb). Unfuelled mass: 81 kg (178 lb). Specific impulse: 290 s. Burn time: 63 s. Height: 1.68 m (5.50 ft). Diameter: 0.93 m (3.06 ft).
Upper stage motor is the apogee kick motor for the FLTSTACOM satellite. The motor case contains the same volume as the STAR 37E, which is discontinued. The semi-submerged nozzle assembly uses a 3-D carbon-carbon throat and a carbon-phenolic exit cone. Propellant: 1067 kg of AP/HTPB/Al in 6Al-4V titanium case. The motor has been qualified for propellant offloading to 1,023 kg. Total impulse 311,041 kgf-s. Propellant mass fraction 0.929.
Propellant Formulation: HTPB.