Encyclopedia Astronautica
P230


SNPE solid rocket engine. 6472.3 kN. In production. Isp=286s. Used on Ariane 5 launch vehicle. First flight 1996.

Thrust (sl): 5,861.300 kN (1,317,673 lbf). Thrust (sl): 597,692 kgf. Propellant Formulation: Lox/LH2.

Status: In production.
Gross mass: 269,000 kg (593,000 lb).
Unfuelled mass: 34,000 kg (74,000 lb).
Height: 31.00 m (101.00 ft).
Diameter: 3.00 m (9.80 ft).
Thrust: 6,472.30 kN (1,455,031 lbf).
Specific impulse: 286 s.
Specific impulse sea level: 259 s.
Burn time: 123 s.
First Launch: 1966.
Number: 44 .

More... - Chronology...


Associated Countries
See also
Associated Launch Vehicles
  • Ariane 5 French orbital launch vehicle. The Ariane 5 was a completely new design, unrelated to the earlier Ariane 1 to 4. It consisted of a single-engine Lox/LH2 core stage flanked by two solid rocket boosters. Preparatory work began in 1984. Full scale development began in 1988 and cost $ 8 billion. The design was sized for the Hermes manned spaceplane, later cancelled. This resulted in the booster being a bit too large for the main commercial payload, geosynchronous communications satellites. As a result, development of an uprated version capable of launching two such satellites at a time was funded in 2000. 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 5-0 Solid propellant rocket stage. Loaded/empty mass 277,500/39,800 kg. Thrust 6,470.00 kN. Vacuum specific impulse 275 seconds. Solid rocket booster for Ariane 5. Nozzle expansion ratio increased from 9.7 to 11.0 after 1997. Chamber pressure 61.3 bar. HTPB propellant. More...

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