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Credit: Thiokol. 1,439 bytes. 110 x 38 pixels.

Manufacturer Name: TE-M-640-1. Government Designation: Altair 3. Other Designations: 27.5-KS-6,100. Designer: Thiokol. Gross Mass: 301 kg. Empty Mass: 28 kg. Propellants: Solid Thrust(vac): 2,767 kgf. Isp: 287 sec. Burn time: 28 sec. Diameter: 0.5 m. Chambers: 1. Country: USA. Status: In Production. Flown: 39. References: 410 .

Altair III was developed as the propulsion unit for the fourth stage of the Scout launch vehicle. A filament-wound, fiberglass-epoxy case contains the CTPB propellant grain. The lightweight, external nozzle is a composite of graphite, plastic, and steel. The consumable pyrogen 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.

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Last update 12 March 2001.
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