The J-2X: A powerful line up

Oct 17, 2012
Credit: NASA/SSC

(Phys.org)—Two J-2X engines and a power pack, developed for NASA by Pratt & Whitney Rocketdyne, sit side-by-side at John C. Stennis Space Center in Mississippi as work continues on the Space Launch System.

10001, far left, has been removed from the A-2 test stand after being hot-fire tested 21 times, for a total of 2,697 seconds. The engine is now undergoing a series of post-test inspections.

A J-2X powerpack, center, has been removed from test stand A-1 to receive additional instrumentation. So far, the powerpack has been hot-fire tested 10 times, for a total of 4,162 seconds. Once it goes back into the test stand at Stennis, the powerpack will be hot-fire tested three more times, for a total of 6,000 seconds among its 13 planned tests.

Meanwhile, assembly on the second J-2X engine, known as Engine 10002 and located to the far right, has begun in earnest, with engine completion scheduled for this November. Engine 10002 is about 15 percent complete.

The J-2X is a highly efficient and versatile advanced rocket engine with the ideal thrust and performance characteristics to power the upper stage of 's Launch System, a new heavy-lift launch vehicle capable of missions beyond low-Earth orbit. Fueled by liquid oxygen and liquid hydrogen, the J-2X builds on heritage designs but relies on nearly a half-century of NASA spaceflight experience and technological and manufacturing advances to deliver up to 294,000 pounds of thrust, powering exploration to new destinations in our solar system. The J-2X is the first new liquid oxygen and liquid hydrogen rocket engine developed in 40 years that will be rated to carry humans into space.

Explore further: Suddenly, the sun is eerily quiet: Where did the sunspots go?

add to favorites email to friend print save as pdf

Related Stories

NASA performs first J-2X powerpack test of the year

Feb 16, 2012

(PhysOrg.com) -- Engineers at NASA's Stennis Space Center conducted an initial test of the J-2X engine powerpack Feb. 15, kicking off a series of key tests in development of the rocket engine that will carry ...

NASA ready to test upgraded J-2X powerpack

Dec 07, 2011

(PhysOrg.com) -- For engineers working on the J-2X engine program, installation of the upgraded J-2X powerpack on the A-1 Test Stand on Dec. 5 had to feel like a long-awaited holiday gift.

A summer of records for NASA engine testing

Jul 25, 2012

(Phys.org) -- As Olympic athletes converge on London with dreams of winning gold in the 2012 Summer Olympic Games, NASA is also setting records while testing the J-2X powerpack at the Stennis Space Center. ...

Image: The shake, rattle and roar of the J-2X engine

May 17, 2012

(Phys.org) -- The shake, rattle and roar lasted just seven seconds, but the short J-2X test conducted May 16 at NASA's John C. Stennis Space Center in south Mississippi moved the space agency ever closer to ...

J-2X engine ready for second test series

Apr 25, 2012

(Phys.org) -- The next-generation engine that will help carry humans deeper into space than ever is back, bigger and better. The J-2X engine is currently on the A-2 Test Stand at NASA's Stennis Space Center ...

J-2X engine continues to set standards

May 28, 2012

(Phys.org) -- Testing of the next-generation J-2X rocket engine continues to set standards. Last fall, the engine attained 100 percent power in just its fourth test and became the fastest U.S. rocket engine ...

Recommended for you

Wake up, robot

1 hour ago

Code, play and command your space droid – students across Europe can bring a squadron of minisatellites to life on the International Space Station as the ultimate space robot game.

Image: Messy peaks of Zucchius

23 hours ago

Even to the naked eye, our Moon looks heavily cratered. The snippet of carved and pitted lunar surface shown in this image lies within a 66 km-wide crater known as Zucchius. From our perspective, Zucchius ...

User comments : 0