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Background Information
- First Launch:
- June 1988
- Flight Rate:
- 9-12 Ariane 4s per year
- Launch Site:
- ELA-2 (Kourou, French Guiana)
- Capability:
- 18,300 lb to LEO; 9,308 lb TO GTO
History
- European Space Agency began Ariane development in 1973
- First Ariane flight in December 1979
- First Ariane 4 flight in June 1988
Description
- Three-stage vehicle with two strap-on solid boosters and two strap-on liquid boosters
- Stage 1 burns UH25/N2O4 in four Viking V engines, generating a total thrust of 674,400 lb
- Stage 2 burns UH25/N2O4 in one Viking IV engine, generating 179,800 lb of thrust
- Stage 3 burns LH2/LO2 in one HM-7B engine, generating 14,000 lb of thrust
- Two solid strap-ons (PAP) burn CTPB, generating 146,100 lb of thrust each
- Two liquid strap-ons (PAL) burn UH25/N2O4 in Viking VI engines, generating 168,600 lb of thrust each
Profile
- Length:
- 190 ft (28 ft fairing)
- Launch Weight:
- 920,024 lb
- Diameter:
- 12.5 ft (stage 1)
- Liftoff Thrust:
- 1,191,500 lb
- Payload Fairing:
- 28-41 ft x 13 ft
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