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Altair 3
Part of Altair
Star-20 Credit: Thiokol |
Thiokol solid rocket engine. In Production. Altair III was developed as the propulsion unit for the fourth stage of the Scout launch vehicle. A filament-wound, fiberglass-epoxy case contained the CTPB propellant grain.
AKA: 27.5-KS-6,100;Star 20;TEM640;TE-M-640-1. Status: In Production. Number: 39 . Thrust: 27.14 kN (6,100 lbf). Gross mass: 301 kg (663 lb). Unfuelled mass: 28 kg (61 lb). Specific impulse: 287 s. Burn time: 28 s. Diameter: 0.50 m (1.64 ft).
The lightweight, external nozzle is a composite of graphite, plastic, and steel. The consumable pyrogenic igniter is actuated by two 6-second-delay electrical initiators or two SBASI zero-time-delay initiators. Total impulse 78,670 kgf-s. Propellant mass fraction 0.908.
Propellant Formulation: CTPB.
Country:
USA.
Launch Vehicles:
Thor Burner 1,
Scout B,
Scout B 2A,
Scout B-1,
Scout B-1 F,
Scout D-1,
Scout D-1 F,
Scout E-1,
Scout F-1,
Atlas F/MSD,
Scout G-1,
Atlas E/MSD,
ASAT,
Scout D,
Atlas E Altair,
Advanced Scout.
Propellants:
Solid.
Stages:
Altair 3.
Agency:
Thiokol.
Bibliography:
410,
9622.
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