Ariane 5 Aestus

home
topic index

Model: Ariane 5-2. Gross Mass: 12,500 kg (27,500 lb). Empty Mass: 2,700 kg (5,900 lb). Thrust (vac): 27.400 kN (6,160 lbf). Isp: 324 sec. Burn time: 1,100 sec. Propellants: N2O4/MMH. Diameter: 3.96 m (12.99 ft). Span: 5.46 m (17.91 ft). Length: 3.36 m (11.02 ft). Country: Germany. No Engines: 1. Motor: Aestus. Status: Active. Cost $ : 6.000 million. First Flight: 1984. Last Flight: 2007. No Launched: 48. Other designations: L-9.

Storable propellant, restartable upper stage for use with Ariane 5. Chamber pressure 10 bar; expansion ratio 83.0; propellant mix ratio 2.05. Empty mass without VEB payload fairing support ring and avionics is 1200 kg.

Model: Ariane 5 EPS L10. Gross Mass: 12,750 kg (28,100 lb). Empty Mass: 2,750 kg (6,060 lb). Thrust (vac): 27.400 kN (6,160 lbf). Isp: 324 sec. Burn time: 1,100 sec. Propellants: N2O4/MMH. Diameter: 3.96 m (12.99 ft). Span: 5.46 m (17.91 ft). Length: 3.36 m (11.02 ft). Country: Germany. No Engines: 1. Motor: Aestus. Status: In development. First Flight: 2004. Last Flight: 2004. No Launched: 9.

250 kg additional propellant compared to Ariane 5G version.

Used on Launch Vehicles:

Ariane 5.

Contact us with any corrections, additions, or comments.

Conditions for use of drawings, pictures, or other materials from this site..
To contact astronauts or cosmonauts.

© Mark Wade, 1997 - 2008 except where otherwise noted.