LE-5
Type: Upper Stage Engine
Country of Origin: Japan
Manufacturer: Mitsubishi Heavy Industries
First Flight: August 12, 1986
Status: Retired
Propellant (O/F): Liquid Oxygen/Liquid Hydrogen
Mixture Ratio (O/F by mass): 5.5
Cycle: Gas-generator
Chambers: 1
Thrust (vac.): 102.9 kN
Thrust (s.l.):
Throttle: Fixed
ISP (vac.): 450 s
ISP (s.l.):
Chamber Pressure: 529 psi (36.5 bar)
Nozzle Ratio: 140:1
Burn time:
Ignitions:
Mass: 255 kg
Length: 2.68 m
Diameter:
Used in: H-I
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