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The XLR-129 program was never completed, no complete engine was ever produced, but many systems were developed and tested.
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The XLR-129 was designed to be reusable and was initially paid for by the US Air Force, for a 1960s program called
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an attempt was made to increase the thrust to 350,000 lbf (1,600 kN), but in the end
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design that would have used liquid hydrogen and liquid oxygen propellants. It was developed by
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and initially was to develop 250,000 lbf (1,100 kN) of thrust. It featured an
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87:"The Space Review: A bat outta Hell: The ISINGLASS Mach 22 follow-on to OXCART"
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in order to tune performance over a wide range of altitudes.
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that was intended for surveillance overflights. For the
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23:Cut-drawing of XLR-129 demonstrator engine
174:This article about aircraft engines is a
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178:. You can help Knowledge (XXG) by
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121:. January 1971. Archived from
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16:American rocket engine design
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64:Space Shuttle Main Engine
225:Aircraft rocket engines
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235:Aircraft engine stubs
153:LR129 (rocket engine)
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155:at Wikimedia Commons
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219:Categories
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73:References
60:Rocketdyne
48:ISINGLASS
29:XLR-129
101:"Ch9"
176:stub
27:The
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