The US government is funding three projects to develop new, less costly booster rockets that could propel a space vehicle of any size into orbit. The first of these is the R-68 liquid oxygen/hydrogen-fueled rocket engine, which is expected to power the first stage of the future Evolved Expendable Launch Vehicle (EELV). The second project is NASA's oxygen/kerosene-fueled Fastrac engine, which is designed to propel the air-launched X-34 spaceplane into space and back to a wing-borne landing. The third project is Rocketdyne's XRS-2200 linear aerospike engine, which is designed to send the autonomously controlled NASA X-33 lifting body into orbit.
Bringing launch costs down to earth
Mechanical Engineering ; 120 , 10 ; 62-68
1998
7 Seiten
Article (Journal)
English
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