Encyclopedia Astronautica
SPB 7.35


SNPE solid rocket engine. 690 kN. Isp=263s. Strap-on booster for Advanced Scout, Ariane 2/3. First flight 1984.

Thrust (sl): 629.600 kN (141,540 lbf). Thrust (sl): 64,207 kgf. Chamber Pressure: 50.00 bar.

Gross mass: 9,663 kg (21,303 lb).
Unfuelled mass: 2,313 kg (5,099 lb).
Height: 8.32 m (27.29 ft).
Diameter: 1.07 m (3.51 ft).
Thrust: 690.00 kN (155,110 lbf).
Specific impulse: 263 s.
Specific impulse sea level: 240 s.
Burn time: 29 s.
Number: 68 .

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Associated Countries
See also
Associated Launch Vehicles
  • Ariane 2/3 French orbital launch vehicle. Improved version of the Ariane 1. It featured increased thrust first and second stage engines, a 25% stretched third stage, 4 seconds specific impulse improvement in the third stage, a larger internal payload fairing volume, and introduced the Sylda payload carrier for dual payloads. The Ariane 3 version added two solid rocket motor strap-ons. Development was authorised in July 1980 and had a total cost of 144 million 1986 Euros. More...
  • Advanced Scout American all-solid orbital launch vehicle. Proposed upgrade of Scout proposed by the University of Rome with two strap-ons from the Ariane 4. Launch would have been from Italy's San Marco platform off Kenya. Further work cancelled in 1993. More...

Associated Manufacturers and Agencies
  • SNPE French manufacturer of rocket engines. Societe Nationale des Poudres et Explosifs, France. 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...

Associated Stages
  • Ariane 3-0 Solid propellant rocket stage. Loaded/empty mass 9,663/2,313 kg. Thrust 689.99 kN. Vacuum specific impulse 263 seconds. More...

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