RL60
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| RL60 | |
| Country of origin | United States |
| Manufacturer | Pratt and Whitney |
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| Propellant | LOX / LH2 |
| Mixture ratio | 4.5 to 6.2 |
| Cycle | expander |
| Performance | |
|---|---|
| Thrust (SL) | 50,000 - 65,000 lbf |
| Thrust-to-weight ratio | 59 |
| Isp (Vac.) | 465 s |
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.
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