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SFS News: SPACEX Falcon 9 Upper Stage Engine Successfully Co

Posted by: Rob Goldsmith - Tue Mar 10, 2009 10:03 pm
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SFS News: SPACEX Falcon 9 Upper Stage Engine Successfully Co 
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Post SFS News: SPACEX Falcon 9 Upper Stage Engine Successfully Co   Posted on: Tue Mar 10, 2009 10:03 pm
New Merlin Vacuum engine demonstrates highest efficiency for an American hydrocarbon rocket engine.


McGregor, TX. – March 10, 2009 – Space Exploration Technologies (SpaceX) successfully conducted a full mission duration firing of its new Merlin Vacuum engine on March 7, at SpaceX's Test Facility in McGregor, Texas. The engine fired for a full six minutes, consuming 100,000 pounds of liquid oxygen and rocket grade kerosene propellant.

The new engine, which powers the upper stage of SpaceX's Falcon 9 launch vehicle, demonstrated a vacuum specific impulse of 342 seconds – the highest efficiency ever for an American hydrocarbon rocket engine. Thrust was measured at approximately 92,500 lb of force in vacuum conditions and the engine remained thermally stable over the entire run.

“Specific impulse, or Isp, indicates how efficiently a rocket engine converts propellant into thrust,â€

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Post    Posted on: Mon Mar 16, 2009 11:00 pm
I can't really explain it, but I really love the ignition sound of the merlin engines. Could listen to it the whole day 8)

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