Encyclopedia Astronautica
Altair 1A


Solid propellant rocket stage. Loaded/empty mass 390/181 kg. Thrust 13.79 kN. Vacuum specific impulse 255 seconds.

Cost $ : 1.000 million.

Status: Retired 1964.
Gross mass: 390 kg (850 lb).
Unfuelled mass: 181 kg (399 lb).
Height: 2.50 m (8.20 ft).
Diameter: 0.46 m (1.50 ft).
Span: 0.46 m (1.50 ft).
Thrust: 13.79 kN (3,100 lbf).
Specific impulse: 255 s.
Specific impulse sea level: 232 s.
Burn time: 40 s.
Number: 2 .

More... - Chronology...


Associated Countries
Associated Engines
  • X-248A Thiokol solid rocket engine. 13.8 kN. Isp=255s. Used on Scout X-1, Scout X-2, Scout X-3. First flight 1960. More...

Associated Launch Vehicles
  • Scout X-1A American all-solid orbital launch vehicle. Five stage vehicle consisting of 1 x Algol 1B + 1 x Castor + 1 x Antares + 1 x Altair + 1 x Cetus More...
  • Scout X-2 1C American all-solid orbital launch vehicle. Four stage vehicle consisting of 1 x Algol 1C + 1 x Castor + 1 x Antares 2 + 1 x Altair More...
  • Scout X-3C American all-solid orbital launch vehicle. Three stage vehicle consisting of 1 x Algol 2A + 1 x Castor + 1 x Antares 2 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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