Altair 3B

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Altair 3B

Part of Altair

Star-20B
Credit: Thiokol

Thiokol solid rocket engine. In Production. Modified version of the STAR 20 with increased case structural capability over the. A filament-wound, fiberglass-epoxy case contained the CTPB propellant grain.

AKA: 30.1-KS-5,500;Star 20B;TE-M-604-4. Status: In Production. Number: 11 . Thrust: 24.47 kN (5,500 lbf). Gross mass: 307 kg (676 lb). Unfuelled mass: 33 kg (72 lb). Specific impulse: 289 s. Burn time: 30 s. Diameter: 0.50 m (1.64 ft).

The lightweight, external nozzle was a composite of graphite, plastic, and steel. The consumable pyrogenic igniter was actuated by two SBASI zero-time-delay initiators. Total impulse 79,155 kgf-s. Propellant mass fraction 0.893.

Propellant Formulation: CTPB.

Country: USA. Propellants: Solid. Agency: Thiokol. Bibliography: 410.

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