Encyclopedia Astronautica
Antares 3A


Solid propellant rocket stage. Loaded/empty mass 1,637/352 kg. Thrust 80.80 kN. Vacuum specific impulse 295 seconds.

Cost $ : 4.000 million.

Status: Out of production.
Gross mass: 1,637 kg (3,608 lb).
Unfuelled mass: 352 kg (776 lb).
Height: 3.51 m (11.51 ft).
Diameter: 0.76 m (2.49 ft).
Span: 0.76 m (2.49 ft).
Thrust: 80.80 kN (18,164 lbf).
Specific impulse: 295 s.
Burn time: 48 s.
Number: 25 .

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Associated Countries
Associated Engines
  • X-259A Thiokol solid rocket engine. 80.8 kN. Out of production. Isp=295s. Used on Scout G launch vehicle. First flight 1979. More...

Associated Launch Vehicles
  • Scout G American all-solid orbital launch vehicle. Four stage vehicle consisting of 1 x Algol 3A + 1 x Castor 2 + 1 x Antares 3 + 1 x Star 20 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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