Space transport engineering, spaceflight engineering, astronautics, astronautical engineering, cosmonautics, rocketry, spacecraft, rockets and missiles.
| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| PVT | Pyrotechnic Verification Test | In English | |
| QMS | Qualification Model Spacecraft | In English | |
| QRSL | Quick-Reaction Space Laboratory | In English | → Research institutes | 
| QTV | Qualification Test Vehicle | In English | |
| RADO | Radiation Dosimetry | In English | → Radioactivity → Astronomy  | 
| RADO-HTR | Radiation Dosimetry - High Temperature Ratio | In English | → Radioactivity → Astronomy  | 
| RAE | Royal Aerospace Establishment | In English | → Aeronautics, aircraft | 
| RAI | Radar Altimeter Indicator | In English | → Aeronautics, aircraft | 
| RAI | Roll Attitude Indicator | In English | |
| RALPH | Reduction and Acquisition Of Lunar Pulse Heights | In English | → Astronomy | 
| RALT | Radar Altimeter | In English | → Aeronautics, aircraft | 
| RAP | Reserve Auxiliary Payload | In English | |
| RAPCON | Radar Approach and Control | In English | → Aeronautics, aircraft | 
| RATO | Rocket-Assisted Takeoff | In English | |
| RCS | Reentry Control System | In English | |
| RDS | Rocketdyne Digital Simulator | In English | |
| REA | Rocket Engine Assembly | In English | |
| ReAA | Recherches Aéronautiques et Aérospatiales | In French | → Serial publications, periodicals → Aeronautics, aircraft  | 
| REAM | Rocket Engine Assembly Module | In English | |
| REM | Rocket Engine Module | In English | |
| RFHA | Reusable Flight Hardware Authorization | In English | → Computer hardware → Aeronautics, aircraft  | 
| RHS | Rocketdyne Hybrid Simulator | In English | |
| RIAPS | Remote Infrared Atmospheric Profiling System | In English | → Meteorology, climatology | 
| RIG | Remote Imaging Group (www.rig.org.uk) | In English | → Organizations and associations | 
| RIMSS | Rockwell International Modular Satellite System | In English | |
| RISEC | Rockwell International Shuttle Equipment Cradle | In English | |
| RJ/EC | Reaction Jet/Engine Control | In English | → Aeronautics, aircraft | 
| RJC | Reaction Jet Control | In English | → Aeronautics, aircraft | 
| RJD | Reaction Jet Device | In English | → Aeronautics, aircraft | 
| RJD | Reaction Jet Driver | In English | → Aeronautics, aircraft | 
| RJDA | Reaction Jet Driver Aft | In English | → Aeronautics, aircraft | 
| RJDF | Reaction Jet Driver Forward | In English | → Aeronautics, aircraft | 
| RJOD | Reaction Jet/OMS Driver | In English | → Aeronautics, aircraft | 
| RKA | Rossiskoye Kosmicheskoye Agentsvo | In Russian | |
| RM | Rendezvous Maneuver | In English | → Aeronautics, aircraft | 
| ROCES | Ranger Orbiter Crew Escape System | In English | |
| ROEU | Remotely Operated Electrical Umbilical | In English | |
| RORSAT | Radar Ocean Reconnaissance Satellite | In English | → Marine research, oceanography | 
| ROSA | Romanian Space Agency | In English | → Central administration → Astronomy → Romania  | 
| ROSAT | ROentgen SATellite | In English | → Astronomy | 
| ROTV | Returnable Orbital Transfer Vehicle | In English | |
| RP | Rocket Propellant | In English | |
| RPL | Rocket Propulsion Laboratory | In English | → Research institutes | 
| RPOC | Remote Payload Operations Center | In English | |
| RR | Rendezvous Radar | In English | → Aeronautics, aircraft | 
| RRDA | Rendezvous Radar Deployment Actuator | In English | → Aeronautics, aircraft | 
| RREA | Rendezvous Radar Electronics Assembly | In English | → Electronics | 
| RREU | Rendezvous Radar Electronics Unit | In English | → Electronics | 
| RRS | Retrorocket System | In English | |
| RRT | Rendezvous Radar Transducer | In English | |
| RRT | Rendezvous Radar Transfer | In English | |
| RRT | Rendezvous Radar Transponder | In English | |
| RSLS | Redundant Set Launch Sequence | In English | |
| RSO | Resident Space Object | In English | → Astronomy | 
| RSOC | Rockwell Space Operations Company | In English | |
| RSRB | Redesigned Solid Rocket Booster | In English | |
| RSRM | Redesigned Solid Rocket Motor | In English | |
| RSSPO | Resident Space Shuttle Project Office | In English | |
| RT | Reference Trajectory | In English | → Aeronautics, aircraft | 
| RTF | Return To Flight | In English | → Aeronautics, aircraft | 
| RTFSS | Real-Time Flight Safety Software | In English | → Software → Accidents, risks, safety → Aeronautics, aircraft  | 
| RTLS | Return To Launch Site | In English | → Aeronautics, aircraft | 
| RV | Reentry Vehicle | In English | |
| RVAO | Reentry Vehicle Associated Object | In English | |
| S&MST | Space and Missile System Test | In English | → Military engineering | 
| S&SED | Satellite and Space Electronics Division | In English | → Electronics | 
| SAAS | Shuttle Aerospace Actuator Simulator | In English | → Aeronautics, aircraft | 
| SAB | Satellite Assembly Building | In English | |
| SAB | Shuttle Assembly Building | In English | |
| SAB | Spacecraft Assembly Building | In English | |
| SABIR | Space-Based Interceptor | In English | → Military engineering | 
| SAC | Space Applications Corporation | In English | |
| SAD | Shuttle Authorized Document | In English | |
| SAD | Spacecraft Attitude Display | In English | |
| SAEF | Spacecraft Assembly and Encapsulation Facility | In English | → Mechanical engineering | 
| SAF | Spacecraft Assembly Facility | In English | |
| SAID | Shuttle Authorized Item Document | In English | |
| SAIL | Shuttle Avionics Integration Laboratory | In English | → Research institutes → Aeronautics, aircraft  | 
| SAINT | Satellite Interceptor Program | In English | |
| SAL | Shuttle Avionics Laboratory | In English | → Research institutes → Aeronautics, aircraft  | 
| SAM | Shuttle Activation Monitor | In English | |
| SAM | School of Aerospace Medicine | In English | → Specialized or polytechnical colleges → Medicine → Aeronautics, aircraft  | 
| SAM | Shuttle Attachment Manipulator | In English | |
| SAMP | Shuttle Automated Mass Properties | In English | |
| SAMS | Space Acceleration Measurement System | In English | |
| SAMS | Shuttle Altitude Measuring System | In English | |
| SAMS | Shuttle Attached Manipulator System | In English | |
| SAMTEC | Space And Missile Test Center | In English | → Military engineering | 
| SAMTO | Space And Missile Test Organization | In English | → Military engineering | 
| SANS | Stellar Autonomous Navigation System | In English | → Astronomy | 
| SAREX | Shuttle Amateur Radio Experiment | In English | → Telecommunications | 
| SARP | Shuttle Astronaut Recruitment Program | In English | → Personnel management | 
| SAS | Small Astronomy Satellite | In English | → Astronomy | 
| SASCB | Shuttle Avionics Software Control Board | In English | → Software → Aeronautics, aircraft  | 
| SASR | Shuttle Avionics Status Review | In English | → Aeronautics, aircraft | 
| SASR | Shuttle Avionics System Review | In English | → Aeronautics, aircraft | 
| SATAF | Shuttle Activation Task Force | In English | |
| SatCo | Satellite Communications | In English | → Serial publications, periodicals | 
| SATCON | Satellite Connectivity Simulation | In English | → Electrical engineering | 
| SATO | Shuttle Attached TeleOperator | In English | |
| SATS | Shuttle Avionics Test Set | In English | → Aeronautics, aircraft | 
| SATS | Shuttle Avionics Test Station | In English | → Aeronautics, aircraft | 
| SATS | Small Applications Technology Satellite | In English | |
| SATSIM | Satellite Target Sensing Simulation | In English | |
| SAW | Satellite Attack Warning | In English | |
| SAW/V | Satellite Attack Warning/Verification | In English | |
| SB | Space Base | In English | |
| SBDEW | Space-Based, Directed-Energy Weapon | In English | → Military engineering | 
| SBDEWSIM | Space-Based, Directed-Energy Weapon Simulation | In English | → Military engineering | 
| SBFS | Space Businesses Financial Services | In English | |
| SBI | Space-Based Interceptor | In English | |
| SBKEW | Space-Based Kinetic-Energy Weapon | In English | → Military engineering | 
| SBKEWS | Space-Based Kinetic-Energy Weapon System | In English | → Military engineering | 
| SBKKV | Space-Based Kinetic Kill Vehicle | In English | → Military engineering | 
| SBKKVWS | Space-Based Kinetic Kill Vehicle Weapon System | In English | → Military engineering | 
| SBL | Space-Based Laser | In English | → Military engineering | 
| SBLIP | Space-Based Laser Intercept Program | In English | → Military engineering | 
| SBMS | Space-Based Battle Manager Satellite | In English | → Military engineering | 
| SBMS | Spaceborne Battle Management Satellite | In English | → Military engineering | 
| SBNPB | Space-Based Neutral Particle Beam | In English | |
| SBOTV | Space-Based OTV | In English | |
| SBS | Satellite Business System | In English | |
| SBS | Scientific Business Satellite | In English | → Mathematics and natural sciences | 
| SBSS | Space-Based Space Surveillance | In English | |
| SBSS | Space-Based Surveillance System | In English | |
| SC | Spacecraft | In English | |
| SC/SM | Spacecraft Systems Monitor | In English | |
| SC/TC | Spacecraft Test Conductor | In English | |
| SCA | Shuttle Carrier Aircraft | In English | → Aeronautics, aircraft | 
| SCAN | Selected Current Aerospace Notice | In English | → Electrical engineering → Aeronautics, aircraft  | 
| SCAN | Shuttle Connector Analysis Network | In English | |
| SCAP | Shuttle Configuration Analysis Program | In English | |
| SCAT | Space Communication And Tracking | In English | → Telecommunications | 
| SCCC | Spacecraft Command and Control Center | In English | |
| SCDR | Shuttle Critical Design Review | In English | |
| SCE | Space Transportation System Cargo Element | In English | |
| SCF | Satellite Control Facility | In English | |
| SCF | Spacecraft Control Facility | In English | |
| SCIM | Shuttle Cargo Integration Manager | In English | |
| SCIP | Shuttle Cargo Integration Plan | In English | |
| SCMU | Satellite Control and Monitor Unit | In English | → Human-computer interaction | 
| SCO | Spacecraft Operator | In English | |
| SCOSA | Subcommittee on Space Technology and Applications | In English | → Organizations and associations | 
| SCR | Space-Constructible Radiator | In English | |
| SCRAM | Station Crew Return Alternative Module | In English | |
| SCS | Spacecraft Control System | In English | |
| SCSS | Sea-Cure Satellite System | In English | |
| SCSS | Satellite Control Simulation System | In English | → Computer simulation | 
| SCTE | Spacecraft Central Timing Equipment | In English | |
| SCU | Shuttle Configuration Unit | In English | |
| SCVE | Spacecraft Vicinity Equipment | In English | |
| SD | Space Division | In English | |
| SD/AFSC | Space Division/Air Force Systems Command | In English | → 358 → United States  | 
| SD/IN | Space Division/Intelligence | In English | |
| SD/SP | Space Division Directorate of Security | In English | → Military affairs | 
| SDAP | Shuttle Descent Analysis Program | In English | |
| SDAT | Spacecraft Data Analysis Team | In English | |
| SDC | Space Data Corporation | In English | |
| SDCCC | Space Defense Command Communication Center | In English | → Military affairs → Telecommunications  | 
| SDCOC | Space Defense Command Operations Center | In English | → Military affairs → Telecommunications  | 
| SDD | Shuttle Design Directive | In English | |
| SDE | Space Division Evaluator | In English | |
| SDF | Shuttle Development Facility | In English | |
| SDHS | Satellite Data Handling System | In English | → Computer science → Data processing  | 
| SDIL | Spacecraft DCD Interface Logic | In English | → Human-computer interaction | 
| SDLV | Shuttle-Derived Launch Vehicle | In English | |
| SDM | Shuttle Data Management | In English | → Data | 
| SDM | Shuttle Definition Manual | In English | |
| SDMB | Shuttle Discrepancy Management Board | In English | |
| SDMS | Shuttle Data Management System | In English | |
| SDP | Shuttle Data Processor | In English | → Data | 
| SDPC | Shuttle Data Processing Complex | In English | → Data processing | 
| SDPLV | Shuttle-Derived-Propellant Launch Vehicle | In English | |
| SDQA | Space Division Quality Assurance | In English | → Quality management | 
| SDR | Spacelab Disposition Record | In English | → Records management | 
| SDRS | Shuttle Display Reconfiguration System | In English | → Human-computer interaction | 
| SDS | Satellite Data System | In English | → Data | 
| SDS | Shuttle Dynamic Simulation | In English | |
| SDS | Shuttle Dynamic Simulator | In English | |
| SDS | Space Defense System | In English | → Military engineering | 
| SDSS | Space Division Shuttle Simulator | In English | |
| SDT | Shuttle Data Tape | In English | → Data | 
| SDTS | Satellite Data Transmission System | In English | → Telecommunications | 
| SDV | Shuttle-Derived Vehicle | In English | |
| SEADS | Shuttle Entry Air Data Sensor | In English | |
| SECS | Shuttle Events Control Subsystem | In English | |
| SED | Space Engineering Document | In English | |
| SEF | Space Environmental Facility | In English | → Astronomy | 
| SEIS | Shuttle Experiments Integration Support | In English | |
| SEIS | Spacelab Experiments Integration Support | In English | |
| SEM | Shuttle Experiment Module | In English | |
| SEM | Space Environment Monitoring | In English | → Astronomy | 
| SEMS | Space Environment Monitor System | In English | |
| SEOS | Synchronous Earth Observation Satellite | In English | → Astronomy | 
| SEP | Shuttle Electronics Package | In English | → Electronics | 
| SEP | Space Electronics Package | In English | → Electronics | 
| SEPAP | Shuttle Electrical Power Analysis Program | In English | → Electrical engineering | 
| SEPAR | Shuttle Electrical Power Analysis Report | In English | → Electrical engineering | 
| SEPS | Solar Electric Propulsion System | In English | → Electrical engineering | 
| SERB | Shuttle Engineering Review Board | In English |