| Acronym | Sense | Language | Topics |
|---|---|---|---|
| PLS | Propellant Loading System | In English | → Astronautics |
| PLSL | Propellants and Life Support Laboratory | In English | → Research institutes → Astronautics |
| PLSP | Payload Signal Processor | In English | → Astronautics |
| PLSR | Postlaunch Service Review | In English | → Astronautics |
| PLV | Payload Vehicle | In English | → Vehicle engineering → Astronautics |
| PLV | Postlanding Valve | In English | → Aeronautics, aircraft → Astronautics |
| PLV | Postlanding Ventilation | In English | → Aeronautics, aircraft → Astronautics |
| PLVC | Postlanding Vent Control | In English | → Aeronautics, aircraft → Astronautics |
| PM | Payload Management | In English | → Management → Astronautics |
| PM | Payload Midbody | In English | → Astronautics |
| PM | Payload Module | In English | → Astronautics |
| PMALS | Preliminary Miniature Air-Launched System | In English | → Aeronautics, aircraft → Astronautics |
| PMC | Payload Monitoring Control | In English | → Astronautics |
| PMC | Permanently Manned Capability | In English | → Astronautics |
| PMD | Propellant Management Device | In English | → Astronautics |
| PMDM | Payload Multiplexer/Demultiplexer | In English | → Astronautics |
| PMM | Planetary Mission Module | In English | → Astronautics |
| PMP | Prelaunch Monitor Program | In English | → Human-computer interaction → Astronautics |
| PMR | Payload Manifest Review | In English | → Astronautics |
| PMR | Payload Manifesting Review | In English | → Astronautics |
| PMR | Payload Mixing Review | In English | → Astronautics |
| PMS | Payload Mounting Structure | In English | → Mechanical engineering → Astronautics |
| PMV | Permanent Manned Vehicle | In English | → Astronautics |
| POC | Payload Operations Center | In English | → Astronautics |
| POCC | Payload/Platform Operations Control Center | In English | → Astronautics |
| POCC | Payload Operations Control Center | In English | → Astronautics |
| POD | Payload Operations Division | In English | → Astronautics |
| POD | Precision Orbit Determination | In English | → Astronautics |
| PODTG | Precision Orbit Determination Task Group | In English | → Astronautics |
| POE | Pilot Operational Equipment | In English | → Aeronautics, aircraft → Astronautics |
| POEM | Polar Orbiting Earth Mission | In English | → Astronautics → Astronomy → Earth sciences |
| POGO | Polar Orbiting Geophysical Observatory | In English | → Geophysics → Astronautics |
| POGS | Polar-Orbiting Geomagnetic Survey | In English | → Geophysics → Astronautics |
| POIC | Payload Operations Integration Center | In English | → Astronautics |
| POP | Perpendicular to Orbit Plane | In English | → Astronautics |
| POP | Polar-Orbiting Platform | In English | → Astronautics |
| POP | Preflight Operations Procedure | In English | → Aeronautics, aircraft → Astronautics |
| POP | Prelaunch Operations Plan | In English | → Aeronautics, aircraft → Astronautics |
| PORSEC | Pan Ocean Remote Sensing Conference | In English | → Congresses → Astronautics → Marine research, oceanography |
| POST | Payload Operations Support Team | In English | → Astronautics |
| POST | Program to Ootimize Simulated Trajectories | In English | → Aeronautics, aircraft → Astronautics |
| POWG | Payload Operations Working Group | In English | → Astronautics |
| POWG | Payload Orbital Working Group | In English | → Astronautics |
| PPC | Payload Preparation Complex | In English | → Astronautics |
| PPCU | Partial Payload Checkout Unit | In English | → Astronautics |
| PPF | Payload Processing Facility | In English | → Astronautics |
| PPL | Production Payload | In English | → Astronautics |
| PPM | Payload Project Manager | In English | → Management → Astronautics |
| PPP | Payload Patch Panel | In English | → Astronautics |
| PPR | Payload Preparation Room | In English | → Astronautics |
| PPS | Partial-Pressure Suit | In English | → Astronautics |
| PPS | Payload Pointing System | In English | → Astronautics |
| PPT | Prelaunch Package Test | In English | → 67973 → Astronautics |
| PQGS | Propellant Quantity Gauging System | In English | → Astronautics |
| PrAA | Progress in Astronautics and Aeronautics | In English | → Serial publications, periodicals → Astronautics → Aeronautics, aircraft |
| PrAeS | Progress in Aerospace Sciences | In English | → Serial publications, periodicals → Astronomy → Aeronautics, aircraft → Astronautics |
| PRB | Parachute Refurbishment Building | In English | → Aeronautics, aircraft → Astronautics |
| PRD | Payload Requirements Document | In English | → Astronautics |
| PRIS | Payload Remote Integration System | In English | → Astronautics |
| PRL | Payload Retention Latch | In English | → Astronautics |
| PRLA | Payload Retention Latch Actuator | In English | → Astronautics |
| PRLA | Payload Retention Latch Assembly | In English | → Astronautics |
| PRM | Payload Retention Mechanism | In English | → Mechanical engineering → Astronautics |
| PRM | Posigrade Rocket Motor | In English | → Astronautics |
| PRR | Preflight Readiness Review | In English | → Aeronautics, aircraft → Astronautics |
| PRRB | Payload Requirements Review Board | In English | → Astronautics |
| PRS | Payload Retention System | In English | → Astronautics |
| PRTLS | Powered Return To Launch Site | In English | → Astronautics |
| PS | Parachute System | In English | → Aeronautics, aircraft → Astronautics |
| PS | Payload Specialist | In English | → Astronautics |
| PS | Payload Station | In English | → Astronautics |
| PS | Payload Support | In English | → Astronautics |
| PSA | Payload Service Area | In English | → Astronautics |
| PSA | Payload Support Avionics | In English | → Aeronautics, aircraft → Astronautics |
| PSBLS | Permanent Space-Based Logistics System | In English | → Maintenance and logistics → Astronautics |
| PSC | Payload Support Contractor | In English | → Astronautics |
| PSC | Planetary Spacecraft | In English | → Astronautics |
| PSCL | Propellant Systems Cleaning Laboratory | In English | → Research institutes → Astronautics |
| PSDE | Payload and Spacecraft Development and Experimentation | In English | → Astronautics |
| PSDP | Payload Station Distribution Panel | In English | → Astronautics |
| PSDP | Payload System Distribution Panel | In English | → Astronautics |
| PSE | Payload Service Equipment | In English | → Astronautics |
| PSE | Payload Support Engineer | In English | → Astronautics |
| PSE | Payload Support Equipment | In English | → Astronautics |
| PSF | Propellant Servicing Facility | In English | → Astronautics |
| PSIG | Propulsion Systems Integration Group | In English | → Astronautics |
| PSM | Propellant Storage Module | In English | → Astronautics |
| PSP | Payload Signal Processor | In English | → Astronautics |
| PSP | Payload Specialist Panel | In English | → Astronautics |
| PSP | Payload Support Plan | In English | → Astronautics |
| PSP | Planetary Scan Platform | In English | → Astronautics |
| PSP | Planetary Scan Probe | In English | → Astronautics |
| PSR | Payload Safety Review | In English | → Accidents, risks, safety → Astronautics |
| PSS | Payload Specialist Station | In English | → Astronautics |
| PSS | Payload Status System | In English | → Astronautics |
| PSS | Payload Support System | In English | → Astronautics |
| PSS | Propellant Supply Subsystem | In English | → Aeronautics, aircraft → Astronautics |
| PSSP | Payload Specialist Station Panel | In English | → Astronautics |
| PSTL | Pressure Model Static and Transient Launch Configuration | In English | → Astronautics |
| PSV | Planetary Space Vehicle | In English | → Astronautics |
| PSV | Probability of Vehicle Success | In English | → Astronautics |
| PSW | Paris Space Week | In English | → Congresses → Astronautics |
| PTB | Payload Timing Buffer | In English | → Astronautics |
| PTCC | Propulsion Test Control Center | In English | → Astronautics |
| PTCS | Propellant Tanking Computer System | In English | → Computer hardware → Astronautics |
| PTS | Payload Test Set | In English | → Astronautics |
| PTS | Payload Transportation System | In English | → Vehicle engineering → Astronautics |
| PTSF | Payload Trunnion Support Fixture | In English | → Astronautics |
| PTV | Pathfinder Test Vehicle | In English | → Astronautics |
| PU | Propellant Unit | In English | → Astronautics |
| PU | Propellant Utilization | In English | → Astronautics |
| PUCS | Propellant Utilization Control System | In English | → Astronautics |
| PUGS | Propellant Utilization and Gauging System | In English | → Astronautics |
| PUV | Propellant Utilization Valve | In English | → Astronautics |
| PVA | Preburner Valve Actuator | In English | → Astronautics |
| PVA | Propellant Valve Actuator | In English | → Astronautics |
| PVDS | Propellant Vent and Drain System | In English | → Astronautics |
| PVO | Pioneer Venus Orbiter | In English | → Astronautics → Astronomy |
| PVT | Preflight Verification Test | In English | → Aeronautics, aircraft → Astronautics |
| PVT | Pyrotechnic Verification Test | In English | → Astronautics |
| PWA | Pratt and Whitney Aircraft | In English | → Aeronautics, aircraft |
| QMS | Qualification Model Spacecraft | In English | → Astronautics |
| QRSL | Quick-Reaction Space Laboratory | In English | → Research institutes → Astronautics |
| QTV | Qualification Test Vehicle | In English | → Astronautics |
| RADO | Radiation Dosimetry | In English | → Radioactivity → Astronautics → Astronomy |
| RADO-HTR | Radiation Dosimetry - High Temperature Ratio | In English | → Radioactivity → Astronautics → Astronomy |
| RAE | Royal Aerospace Establishment | In English | → Aeronautics, aircraft → Astronautics |
| RAéS | Réseau Recherche Aéronautique sur le Supersonique | In French | → Aeronautics, aircraft |
| RAI | Radar Altimeter Indicator | In English | → Aeronautics, aircraft → Astronautics |
| RAI | Roll Attitude Indicator | In English | → Astronautics |
| RALPH | Reduction and Acquisition Of Lunar Pulse Heights | In English | → Astronomy → Astronautics |
| RALT | Radar Altimeter | In English | → Aeronautics, aircraft → Astronautics |
| RAP | Reserve Auxiliary Payload | In English | → Astronautics |
| RAPCON | Radar Approach and Control | In English | → Aeronautics, aircraft → Astronautics |
| RATCC | Radar Air Traffic Control Center | In English | → Aeronautics, aircraft |
| RATO | Rocket-Assisted Takeoff | In English | → Astronautics |
| RCS | Reentry Control System | In English | → Astronautics |
| RDS | Rocketdyne Digital Simulator | In English | → Astronautics |
| REA | Rocket Engine Assembly | In English | → Astronautics |
| ReAA | Recherches Aéronautiques et Aérospatiales | In French | → Serial publications, periodicals → Aeronautics, aircraft → Astronautics |
| REAM | Rocket Engine Assembly Module | In English | → Astronautics |
| REM | Rocket Engine Module | In English | → Astronautics |
| ReSMA | Reparto Sperimentazioni di Meteorologia Aeronautica | In Italian | → Meteorology, climatology → Aeronautics, aircraft |
| RFHA | Reusable Flight Hardware Authorization | In English | → Computer hardware → Aeronautics, aircraft → Astronautics |
| RHS | Rocketdyne Hybrid Simulator | In English | → Astronautics |
| RIAPS | Remote Infrared Atmospheric Profiling System | In English | → Meteorology, climatology → Astronautics |
| RIG | Remote Imaging Group (www.rig.org.uk) | In English | → Organizations and associations → Astronautics |
| RIMSS | Rockwell International Modular Satellite System | In English | → Astronautics |
| RISEC | Rockwell International Shuttle Equipment Cradle | In English | → Astronautics |
| RJ/EC | Reaction Jet/Engine Control | In English | → Aeronautics, aircraft → Astronautics |
| RJC | Reaction Jet Control | In English | → Aeronautics, aircraft → Astronautics |
| RJD | Reaction Jet Device | In English | → Aeronautics, aircraft → Astronautics |
| RJD | Reaction Jet Driver | In English | → Aeronautics, aircraft → Astronautics |
| RJDA | Reaction Jet Driver Aft | In English | → Aeronautics, aircraft → Astronautics |
| RJDF | Reaction Jet Driver Forward | In English | → Aeronautics, aircraft → Astronautics |
| RJOD | Reaction Jet/OMS Driver | In English | → Aeronautics, aircraft → Astronautics |
| RKA | Rossiskoye Kosmicheskoye Agentsvo | In Russian | → Astronautics |
| RM | Rendezvous Maneuver | In English | → Aeronautics, aircraft → Astronautics |
| RMetA | Rivista di Meteorologia Aeronautica | In Italian | → Serial publications, periodicals → Meteorology, climatology → Aeronautics, aircraft |
| ROCES | Ranger Orbiter Crew Escape System | In English | → Astronautics |
| ROEU | Remotely Operated Electrical Umbilical | In English | → Astronautics |
| RORSAT | Radar Ocean Reconnaissance Satellite | In English | → Marine research, oceanography → Astronautics |
| ROSA | Romanian Space Agency | In English | → Central administration → Astronomy → Astronautics → Romania |
| ROSAT | ROentgen SATellite | In English | → Astronomy → Astronautics |
| ROTV | Returnable Orbital Transfer Vehicle | In English | → Astronautics |
| RP | Rocket Propellant | In English | → Astronautics |
| RPL | Rocket Propulsion Laboratory | In English | → Research institutes → Astronautics |
| RPOC | Remote Payload Operations Center | In English | → Astronautics |
| RR | Rendezvous Radar | In English | → Aeronautics, aircraft → Astronautics |
| RRDA | Rendezvous Radar Deployment Actuator | In English | → Aeronautics, aircraft → Astronautics |
| RREA | Rendezvous Radar Electronics Assembly | In English | → Electronics → Astronautics |
| RREU | Rendezvous Radar Electronics Unit | In English | → Electronics → Astronautics |
| RRS | Retrorocket System | In English | → Astronautics |
| RRT | Rendezvous Radar Transducer | In English | → Astronautics |
| RRT | Rendezvous Radar Transfer | In English | → Astronautics |
| RRT | Rendezvous Radar Transponder | In English | → Astronautics |
| RSLS | Redundant Set Launch Sequence | In English | → Astronautics |
| RSO | Resident Space Object | In English | → Astronomy → Astronautics |
| RSOC | Rockwell Space Operations Company | In English | → Astronautics |
| RSRA | Rotor System Research Aircraft | In English | → Aeronautics, aircraft |
| RSRB | Redesigned Solid Rocket Booster | In English | → Astronautics |
| RSRM | Redesigned Solid Rocket Motor | In English | → Astronautics |
| RSSPO | Resident Space Shuttle Project Office | In English | → Astronautics |
| RT | Reference Trajectory | In English | → Aeronautics, aircraft → Astronautics |
| RTCA | Radio Technical Commission for Aeronautics | In English | → Organizations and associations → Telecommunications → Aeronautics, aircraft |
| RTF | Return To Flight | In English | → Aeronautics, aircraft → Astronautics |
| RTFSS | Real-Time Flight Safety Software | In English | → Software → Accidents, risks, safety → Aeronautics, aircraft → Astronautics |
| RTLS | Return To Launch Site | In English | → Aeronautics, aircraft → Astronautics |
| RV | Reentry Vehicle | In English | → Astronautics |
| RVAO | Reentry Vehicle Associated Object | In English | → Astronautics |
| S&MST | Space and Missile System Test | In English | → Military engineering → Astronautics |
| S&SED | Satellite and Space Electronics Division | In English | → Electronics → Astronautics |
| SAAB | Svenska Aeroplan Aktie Bolaget | In Swedish | → Automobile manufacturing → Aeronautics, aircraft → Sweden |
| SAALC | San Antonio Air Logistics Center | In English | → Maintenance and logistics → Aeronautics, aircraft |
| SAAS | Shuttle Aerospace Actuator Simulator | In English | → Aeronautics, aircraft → Astronautics |
| SAB | Satellite Assembly Building | In English | → Astronautics |
| SAB | Shuttle Assembly Building | In English | → Astronautics |
| SAB | Spacecraft Assembly Building | In English | → Astronautics |
| SABCA | Société Anonyme Belge de Constructions Aéronautiques | In French | → Aeronautics, aircraft → Belgium |
| SABENA | Société Anonyme Belge d'Exploitation de la Navigation Aérienne | In French | → Aeronautics, aircraft → Transport and postal services → Belgium |