Reaction Motors XLR99
E106917
UNEXPLORED
The Reaction Motors XLR99 was a pioneering throttleable, restartable liquid-fuel rocket engine that powered the North American X-15 research aircraft to record-breaking speeds and altitudes during the early space age.
Referenced by (2)
| Subject (surface form when different) | Predicate |
|---|---|
|
North American X-15
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engineModel |
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Reaction Motors XLR11
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successor |