Thiokol solid rocket engine. Out of Production. Total impulse 83,839 kgf-sec. Motor propellant mass fraction 0.91.
AKA: Star 20A;TE-M-640-3. Status: Out of Production. Number: 2 . Gross mass: 314 kg (692 lb). Unfuelled mass: 28 kg (61 lb). Specific impulse: 292 s. Diameter: 0.50 m (1.64 ft).