Encyclopedia Astronautica
Star 20B



star20b.jpg
Star-20B
Credit: Thiokol
Thiokol solid rocket engine. 24.467 kN. In Production. Isp=289s. Modified version of the STAR 20 with increased case structural capability over the. A filament-wound, fiberglass-epoxy case contained the CTPB propellant grain.

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

Propellant Formulation: CTPB.

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

More... - Chronology...


Associated Countries
See also
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...

Bibliography
  • Thiokol Corporation Web Site, As of May, 1999. Web Address when accessed: here.

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