CR-7 R.A.P.I.E.R. Engine
The RAPIER (Reactive Alternate-Propellent Intelligent Engine for Rockets) is a hybrid engine. It can change between a airbreathing jet and a liquid fuel engine. It has the feature to auto adjust, change between jet and rocket automatically when it runs out of intake air. This engine is in-game counterpart of the real life SABRE engine.
This is the only hybrid engine ingame, it is especially useful for SSTO designs. The engine doesn't has the efficiency of normal jet engines, even when in jet mode or the efficiency of a similar rocket engine when in rocket mode, but because it can switch between may be a better choice than a Toroidal Aerospike Rocket for orbital insertion.
|“|| THE R.A.P.I.E.R (Reactive Alternate-Propellent Intelligent Engine for Rockets) is a joint venture between C7 Aerospace and the Rockomax Conglomerate. Designed to fill a gap in the design requirements for sustainable single stage to orbit aircraft, this engine combines the best of rocket and air-breathing thrust technology
— C7 Aerospace Division and Rockmax Conglomerate
- Initial release