Encyclopedia Astronautica
Star 20


Solid rocket stage. 27.14 kN (6,100 lbf) thrust. Mass 301 kg (664 lb).

Status: Retired 1990.
Gross mass: 301 kg (663 lb).
Unfuelled mass: 28 kg (61 lb).
Height: 1.50 m (4.90 ft).
Diameter: 0.50 m (1.64 ft).
Thrust: 27.14 kN (6,100 lbf).
Burn time: 28 s.
Number: 21 .

More... - Chronology...


Associated Countries
Associated Engines
  • Star 20 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. More...

Associated Launch Vehicles
  • ASAT American anti-satellite missile. The ASAT air-launched anti-satellite missile was developed by Vought in response to a 1977 Air Force requirement for a missile that could be launched from an F-15A fighter yet was capable of intercepting and destroying enemy satellites in low earth orbit. Four of five tests were successful before the program was cancelled in 1988. More...

Associated Manufacturers and Agencies
  • Thiokol American manufacturer of rocket engines and rockets. Thiokol Corporation, Ogden, UT, USA. More...

Associated Propellants
  • 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...

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