This Day On The Street
Continue to site
This account is pending registration confirmation. Please click on the link within the confirmation email previously sent you to complete registration.
Need a new registration confirmation email? Click here

Aerojet Completes Design Verification Testing On First MR-104G Engine For NASA's Orion Spacecraft






SACRAMENTO, Calif., Nov. 22, 2011 /PRNewswire/ -- Aerojet, a GenCorp (NYSE: GY) company, in conjunction with Lockheed Martin and NASA, has successfully completed vibration, shock and hot fire design verification testing on its first MR-104G monopropellant rocket engine planned for use on NASA's Orion spacecraft.

Twelve 160-lbf thrust MR-104G engines, arranged in four single-engine pods and four dual-engine pods, provide the full complement of primary and redundant control required for critical maneuvers upon a high-speed re-entry into Earth's atmosphere.

The first phase of the MR-104G design verification testing was a critical milestone in the development of the Orion Crew Module propulsion system and marks a significant step toward Orion's first orbital flight test. Orion-specific environment, performance and life requirements were demonstrated as part of this test program in support of the flight test plan. The design verification testing program consisted of vibration and shock testing to appropriately stress the engine structure and catalyst bed similar to launch environments prior to engine hot fire testing. The hot fire test then demonstrated the engine performance and life capability, along with thermal model validations with cold starts, hot restarts and deep thermal cycles.

Several new design features for the MR-104G engine were demonstrated in this testing series, including a newly developed 120-volt series-redundant propellant valve, a 120-volt/40 watt catalyst bed heater, a new chamber pressure transducer and an integral thruster mount configuration.

The MR-104 engine family originally provided in-space propulsion for the Voyager 1 and 2 and Magellan missions. Subsequent MR-104 variants provided propulsion for Landsat, NOAA as well as other U.S. government programs.

"Aerojet is very proud of its support of the crew module's liquid propulsion systems for the Orion spacecraft," said Sam Wiley, Aerojet's Orion program director. "We are excited to provide spacecraft propulsion engines to be used for the next generation of human spaceflight and continue our track record of 100 percent mission success for NASA's human spaceflight dating back to Apollo."

Lockheed Martin is the prime contractor to NASA for Orion, the nation's next generation spacecraft designed to carry astronauts beyond low Earth orbit on long-duration, deep-space missions. Lockheed Martin leads the Orion industry team which includes major subcontractors as well as a nationwide network of minor subcontractors and small businesses. In addition, Lockheed Martin contracts with hundreds of small and disadvantaged business suppliers across the United States through an expansive supply chain network. Visit for more information.

Aerojet is a world-recognized aerospace and defense leader principally serving the missile and space propulsion, defense and armaments markets. GenCorp is a leading technology-based manufacturer of aerospace and defense products and systems with a real estate segment that includes activities related to the entitlement, sale, and leasing of the company's excess real estate assets. Additional information about Aerojet and GenCorp can be obtained by visiting the companies' websites at and

SOURCE Aerojet

Copyright 2011 PR Newswire. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Check Out Our Best Services for Investors

Action Alerts PLUS

Portfolio Manager Jim Cramer and Director of Research Jack Mohr reveal their investment tactics while giving advanced notice before every trade.

Product Features:
  • $2.5+ million portfolio
  • Large-cap and dividend focus
  • Intraday trade alerts from Cramer
Quant Ratings

Access the tool that DOMINATES the Russell 2000 and the S&P 500.

Product Features:
  • Buy, hold, or sell recommendations for over 4,300 stocks
  • Unlimited research reports on your favorite stocks
  • A custom stock screener
Stocks Under $10

David Peltier uncovers low dollar stocks with serious upside potential that are flying under Wall Street's radar.

Product Features:
  • Model portfolio
  • Stocks trading below $10
  • Intraday trade alerts
14-Days Free
Only $9.95
14-Days Free
Dividend Stock Advisor

David Peltier identifies the best of breed dividend stocks that will pay a reliable AND significant income stream.

Product Features:
  • Diversified model portfolio of dividend stocks
  • Updates with exact steps to take - BUY, HOLD, SELL
Trifecta Stocks

Every recommendation goes through 3 layers of intense scrutiny—quantitative, fundamental and technical analysis—to maximize profit potential and minimize risk.

Product Features:
  • Model Portfolio
  • Intra Day Trade alerts
  • Access to Quant Ratings
Real Money

More than 30 investing pros with skin in the game give you actionable insight and investment ideas.

Product Features:
  • Access to Jim Cramer's daily blog
  • Intraday commentary and news
  • Real-time trading forums
Only $49.95
14-Days Free
14-Days Free


Chart of I:DJI
DOW 17,084.49 +33.74 0.20%
S&P 500 2,014.89 +15.91 0.80%
NASDAQ 4,830.47 +19.6820 0.41%

Free Reports

Top Rated Stocks Top Rated Funds Top Rated ETFs