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Images / Astronomy / Twin Linear Aerospike XRS-2200 Engine

Twin Linear Aerospike XRS-2200 Engine
Twin Linear Aerospike XRS-2200 Engine
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The test of twin Linear Aerospike XRS-2200 engines, originally built for the X-33 program, was performed on August 6, 2001 at NASA's Stennis Space Center, Mississippi. The engines were fired for the planned 90 seconds and reached a planned maximum power of 85 percent. NASA's Second Generation Reusable Launch Vehicle Program , also known as the Space Launch Initiative (SLI), is making advances in propulsion technology with this third and final successful engine hot fire, designed to test electro-mechanical actuators. Information learned from this hot fire test series about new electro-mechanical actuator technology, which controls the flow of propellants in rocket engines, could provide key advancements for the propulsion systems for future spacecraft. The Second Generation Reusable Launch Vehicle Program, led by NASA's Marshall Space Flight Center in Huntsville, Alabama, is a technology development program designed to increase safety and reliability while reducing costs for space travel. The X-33 program was cancelled in March 2001.

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Posted by sephirotyang on February 17, 2007 at 5:16 am
Hits: 6646 | Comments: 4


Posted by John Q. Public on June 29, 2007 at 10:39 pm
The "Aerospike" is an interesting engine. Using a "reverse nozzle" design, it is an attempt to get past some of the problems inherent in single-stage-to-orbit vehicles.

I do not believe it is common knowledge, but one of the problems with single-stage rockets is that nozzles are only maximally efficient at certain speeds and altitudes (pressures). A multi-stage rocket can compensate for this somewhat, by optimizing upper-stage nozzles for higher speeds and lower pressures. But when you try to use one nozzle for the whole journey, you lose a lot of efficiency.

The Aerospike is one way scientists are trying to make a single "adjustable" nozzle, which will not lose too much efficiency as it climbs.

There are still problems with the design, but who knows...
Posted by tripping out on January 24, 2009 at 4:05 pm
Posted by tripping out on January 24, 2009 at 4:05 pm
i mean vrooom!
Posted by soccergod78 on January 8, 2011 at 7:55 am
Wow Thanks John Q. for the acurate description this is a very cool image and probably hard to obtain. I like many would like to see the future rockets use alternative "green" type fuels to preserve our precious planet. It requires massive amounts of these harmful fuels to achieve orbit for these space vehicles. As well these rockets and shuttles burn holes in the ozone everytime they pass through shame the price of advancements!
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