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LE-5

Stage · Japan

Original archive entry. The text, images and links below are kept as they were written.

Mitsubishi LOx/LH2 propellant rocket stage. Upper stage on the H-1 launch vehicle. First flight 1986. The LE-5A, a simplified, lower cost version, used an expander bleed cycle turbopump.

Engine: 245 kg (540 lb). Height: 2.49 m. Chamber Pressure: 36.00 bar. Area Ratio: 140. Thrust to Weight Ratio: 50. Oxidizer to Fuel Ratio: 5.5.

Cost $ : 30.000 million.

Subtopics

  • LE-5B engine Mitsubishi LOx/LH2 rocket engine. In production. Improved model of the LE-5A for second stage of the H-II rocket; used hydrogen for the cooling of the thrust chamber, then as the gas to drive the turbine. First flight 2001.
  • HIMES LOx/LH2 propellant rocket stage. .
  • LACE/LE-5 Mitsubishi air augmented Liquid Air/LH2 rocket engine. Design 1999. Used on H-2 HIMES launch vehicle.
  • HIMES engine Mitsubishi LOx/LH2 rocket engine. Design 1999. Used on H-2 HIMES launch vehicle.
  • LE-5EC LOx/LH2 propellant rocket stage. .
  • LACE stage Liquid Air/LH2 propellant rocket stage. .
  • MB-35 Rocketdyne LOx/LH2 rocket engine. Design 2004. Mitsubishi / Boeing joint project for an engine for Delta IV cryogenic upper stages. Expander bleed, pump-fed.
  • MB-60 Rocketdyne LOx/LH2 rocket engine. Design 2004. Mitsubishi / Boeing joint project for an engine for Delta IV cryogenic upper stages. Expander bleed, pump-fed.
  • MB-45 Rocketdyne LOx/LH2 rocket engine. Design 2004. Mitsubishi / Boeing joint project for an engine for Delta IV cryogenic upper stages, announced February 2000.
  • LE-5 engine Mitsubishi LOx/LH2 rocket engine. Used on H-1 launch vehicle. First flight 1986.
  • LE-5A Mitsubishi LOx/LH2 rocket engine. Used on H-2 launch vehicle. First flight 1994.
  • LE-5B LOx/LH2 propellant rocket stage. Lower cost version of H-2 second stage.
Country
Japan
Launch Vehicles
H-1, H-1 (2), H-1 6R
Propellants
Lox/LH2