Spaceflight Abbreviations and Acronyms
- RLSReturn To Launch Site
- RMRendezvous Maneuver
- RORSATRadar Ocean Reconnaissance Satellite
- ROSARomanian Space Agency
- ROSATRoentgen Satellite
- RPRocket Propellant
- RPLRocket Propulsion Laboratory
- RRRendezvous Radar
- RREARendezvous Radar Electronics Assembly
- RREURendezvous Radar Electronics Unit
- RSARomanian Space Agency
- RSRMRedesigned Solid Rocket Motor
- RSSPOResident Space Shuttle Project Officer
- RTFReturn To Flight
- RTLSReturn To Launch Site
- RVReentry Vehicle
- SABSpacecraft Assembly Building
- SABIRSpace-Based Interceptor
- SACSSpacecraft Attitude Display
- SADSpacecraft Attitude Display
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