RL60
Encyclopedia
The RL60 is a rocket engine under development by Pratt and Whitney. The design is a high energy LH2/LOX expander cycle
, capable of multiple restarts in space.
Expander cycle (rocket)
The expander cycle is a power cycle of a bipropellant rocket engine meant to improve the efficiency of fuel delivery.In an expander cycle, the fuel is heated before it is combusted, usually with waste heat from the main combustion chamber. As the liquid fuel passes through coolant passages in the...
, capable of multiple restarts in space.