Vulcain 2
Type: Lower Stage Engine
Country of Origin: France
Manufacturer: Snecma
First Flight: February 12, 2005 (July 9, 2024 as Vulcain 2.1)
Status: Active
Propellant (O/F): Liquid Oxygen/Liquid Hydrogen
Mixture Ratio (O/F by mass): 6.1
Cycle: Gas generator
Chambers: 1
Thrust (vac.): 1359 kN (1324 kN for Vulcain 2.1)
Thrust (s.l.):
Throttle:
ISP (vac.): 429 s
ISP (s.l.):
Chamber Pressure: 1701 psi
Nozzle Ratio: 58.2:1
Burn time:
Ignitions:
Mass: 1800 kg (2000 kg for Vulcain 2.1)
Length: 3.44 m (3.7 m for Vulcain 2.1)
Diameter: 2.09 m (2.5 m for Vulcain 2.1)
Used in: Ariane 5, Ariane 6 (Vulcain 2.1)
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