Reaction Motors. Advanced version of the LR-11, 4 chambers. Engine in the X-1E was modified in 1958 to increase chamber pressure to 20 atm and burn Hydyne fuel.
Status: Out of Production. Thrust: 26.67 kN (5,996 lbf). Height: 1.45 m (4.75 ft). Diameter: 0.46 m (1.50 ft).