The XLR-99 powering the X-15 produced 60,000 lb of thrust and Scott Crossfield flew the new engine on contractor flights in November and December 2960, but the engine was not ready for government flights until March 1961.
Reaction Motors XLR-99
The XLR-99 powering the X-15 produced 60,000 lb of thrust and Scott Crossfield flew the new engine on contractor flights in November and December 2960, but the engine was not ready for government flights until March 1961.
All Aero 