Star-20
Credit: Thiokol
Thiokol solid rocket engine. 27.135 kN. In Production. Isp=286s. 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.
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.
Propellant Formulation: CTPB.
AKA: 27.5-KS-6,100; TE-M-640-1; Altair 3.
Status: In Production.
Gross mass: 301 kg (663 lb).
Unfuelled mass: 28 kg (61 lb).
Diameter: 0.50 m (1.64 ft).
Thrust: 27.14 kN (6,100 lbf).
Specific impulse: 287 s.
Burn time: 28 s.
Number: 39 .
More... - Chronology...
Associated Countries
See also
Associated Manufacturers and Agencies
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Thiokol American manufacturer of rocket engines and rockets. Thiokol Corporation, Ogden, UT, USA. More...
Associated Propellants
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Solid Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. More...
Bibliography
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Thiokol Corporation Web Site, As of May, 1999. Web Address when accessed: here.
Associated Stages
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Star 20 Solid rocket stage. 27.14 kN (6,100 lbf) thrust. Mass 301 kg (664 lb). More...
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