Initial Operational Capability (IOC): 2012
Total Production: ?
Development Cost: USD$1.2 billion
Origin: United States of America
Corporations: Pratt & Whitney Rocketdyne
Parent System: J-2X
Initial Operational Capability (IOC): 2012
Total Production: ?
Development Cost: USD$1.2 billion
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Description: The J-2X is a 294,000-pound of thrust rocket engine based on the J-2 and J-2S engines from Apollo-Saturn space vehicle program. It has been selected to power the upper stages of Ares I and Ares V space launch vehicles which are meant to transport humans to the Moon and beyond. NASA awarded a $1.2 billion development contract to Pratt & Whitney Rocketdyne on July 18, 2007. The contract funds design, development and test of the J-2X rocket motor including both ground and flight tests through December 31, 2012.

J-2X Applications

Space Systems Ares I Ares V SLS Evolved Lift Capability

J-2X Specifications

Fuel Consumption: 217 gal/sec
Thrust: 294,000 pound (133 ton)
CEP: Circular Error Probable
Meters (m)   Kilometers (km)   Nautic Miles (nm)   Inch (in)   Yard (yd)   Foot (ft)   Millimeter (mm)
Pound (lb)   Kilogram (kg)   kN (KiloNewton)   Ton (t)
Meters per Second (mps)   Kilometers per Hour (kph)   Knot (kt)   Miles per Hour (mph)
Liter (l)   Galon (gl)
Year (yr)   Minutes (min)   Second (sec)
Shaft-Horse-Power (shp)

J-2X News

There are 6 news between
18 Jul 2007 and 10 Nov 2011
Thursday, November 10, 2011Pratt & Whitney Rocketdyne and NASA Complete Hot-Fire Test on J-2X Engine
Wednesday, September 14, 2011NASA Announces Design for SLS Deep Space Exploration System
Wednesday, July 20, 2011J-2X Upper-Stage Engine Successfully Begins Demonstration Testing
Wednesday, November 19, 2008Pratt & Whitney Rocketdyne Successfully Completes Critical Design Review on J-2X Rocket Engine
Monday, September 8, 2008Pratt & Whitney Rocketdyne Completes Successful Test of J-2X Gas Generator
Wednesday, July 18, 2007NASA Awards $1.2 Billion Contract for J-2X Rocket Engine Development

Operators & Related Equipment


Grand Total ?1
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