Space transport engineering, spaceflight engineering, astronautics, astronautical engineering, cosmonautics, rocketry, spacecraft, rockets and missiles.
| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| PFC | Preliminary Flight Configuration | In English | → Aeronautics, aircraft | 
| PFCF | Payload Flight Control Facility | In English | |
| PFCS | Primary Flight Control System | In English | → Aeronautics, aircraft | 
| PFK | Payload Function Key | In English | |
| PFL | Propulsion Field Laboratory | In English | → Research institutes → Aeronautics, aircraft  | 
| PFP | Powered Flight Program | In English | → Aeronautics, aircraft | 
| PFRT | Preliminary Flight Rating Test | In English | → Aeronautics, aircraft | 
| PFS | Primary Flight Software | In English | → Software → Aeronautics, aircraft  | 
| PFS | Primary Flight System | In English | → Aeronautics, aircraft | 
| PFT | Postflight Testing | In English | → Aeronautics, aircraft | 
| PFTA | Payload Flight Test Article | In English | → Aeronautics, aircraft | 
| PGHM | Payload Ground Handling Mechanism | In English | |
| PGOC | Payload Ground Operations Contract(or) | In English | |
| PGOR | Payload Ground Operations Requirement | In English | |
| PGORS | Payload Ground Operations Requirements Study | In English | |
| PGSC | Payload and General-Support Computer | In English | → Computer hardware | 
| PGSE | Payload Ground Support Equipment | In English | |
| PhASp | Physics and Astrophysics from Spacelab | In English | → Serial publications, periodicals → Physics → Astronomy  | 
| PHD | Payload Handling Device | In English | |
| PHF | Payload Handling Fixture | In English | |
| PHILEAS | Packaging Hermétique Intégré fiabLE Avancé sur Silicium | In English | → Electronics | 
| PHP | Payload Handling Panel | In English | |
| PHP | Planetary Horizontal Platform | In English | → Astronomy | 
| PHRR | Payload High-Rate Recorder | In English | |
| PHS | Payload Handling Station | In English | |
| PHS | Payload Handling System | In English | |
| PHSF | Payload Hazardous Servicing Facility | In English | |
| PI | Payload Interrogator | In English | |
| PIA | Payload Interface Adapter | In English | |
| PIC | Payload Integration Center | In English | |
| PIC | Payload Integration Committee | In English | |
| PICC | Payload Interface Control Computer | In English | → Computer hardware → Human-computer interaction  | 
| PIDA | Payload Installation and Deployment Aid | In English | |
| PIE | Payload Integration Equipment | In English | |
| PIE | Payload Interface Engineer | In English | |
| PIF | Payload Integration Facility | In English | |
| PILS | Payload Integration Library System | In English | |
| PILS | Payload Interactive Library System | In English | |
| PIM | Payload Integration Manager | In English | |
| PINCH | Payload Integration Nominal Cost Hardware | In English | → Computer hardware | 
| PIO | Pilot-Induced Oscillation | In English | → Aeronautics, aircraft | 
| PIOP | Payload Integration Operations Plan | In English | |
| PIP | Payload Integration Plan | In English | |
| PIP | Payload Interface Plan | In English | |
| PIRCS | Payload Interactive Requirements Collection System | In English | |
| PITG | Payload Integration Task Group | In English | |
| PITS | Payload Integration Test Set | In English | |
| PITS | Payload Interface Test System | In English | |
| PIVR | Payload Interface Verification Requirement | In English | |
| PIVS | Payload Integration and Verification Simulator | In English | |
| PIVS | Payload Interface Verification Summary | In English | |
| PL | Payload | In English | |
| PL | Postlanding | In English | → Aeronautics, aircraft | 
| PL | Prelaunch | In English | |
| PL | Propellant Loading | In English | |
| PLA | Parachute Location Aid | In English | → Aeronautics, aircraft | 
| PLAN | Payload Activity Network | In English | |
| PLB | Payload Bay | In English | |
| PLBD | Payload Bay Doors | In English | |
| PLBD | Payload Bay Door | In English | |
| PLC | Propellant Loading Console | In English | |
| PLCC | Payload Launch Control Center | In English | |
| PLDF | Payload Data File | In English | → Files | 
| PLH | Payload Handling | In English | |
| PLHX | Payload Heat Exchanger | In English | → Energy economics | 
| PLI | Propellant-Level Indicator | In English | |
| PLIC | Payload Intelligent Controller | In English | |
| PLIM | Payload Installation Mechanism | In English | |
| PLIM | Propellant Linear Insulation Matrix | In English | |
| PLIMHR | Payload Integration Management Hardware Review | In English | → Management → Computer hardware  | 
| PLIMR | Payload Integration Management Review | In English | → Management | 
| PLINS | Payload Integration Schedule | In English | |
| PLM | Payload Management | In English | |
| PLM | Payload Monitoring | In English | |
| PLPS | Propellant Loading and Pressurization System | In English | |
| PLRV | Payload Launch Readiness Verification | In English | |
| PLS | Payload Simulator | In English | |
| PLS | Payload System | In English | |
| PLS | Personnel Launch System | In English | → Aeronautics, aircraft | 
| PLS | Postlanding and Safing | In English | → Aeronautics, aircraft | 
| PLS | Primary Landing Site | In English | → Aeronautics, aircraft | 
| PLS | Propellant Loading System | In English | |
| PLSL | Propellants and Life Support Laboratory | In English | → Research institutes | 
| PLSP | Payload Signal Processor | In English | |
| PLSR | Postlaunch Service Review | In English | |
| PLV | Payload Vehicle | In English | → Vehicle engineering | 
| PLV | Postlanding Valve | In English | → Aeronautics, aircraft | 
| PLV | Postlanding Ventilation | In English | → Aeronautics, aircraft | 
| PLVC | Postlanding Vent Control | In English | → Aeronautics, aircraft | 
| PM | Payload Management | In English | → Management | 
| PM | Payload Midbody | In English | |
| PM | Payload Module | In English | |
| PMALS | Preliminary Miniature Air-Launched System | In English | → Aeronautics, aircraft | 
| PMC | Payload Monitoring Control | In English | |
| PMC | Permanently Manned Capability | In English | |
| PMD | Propellant Management Device | In English | |
| PMDM | Payload Multiplexer/Demultiplexer | In English | |
| PMM | Planetary Mission Module | In English | |
| PMP | Prelaunch Monitor Program | In English | → Human-computer interaction | 
| PMR | Payload Manifest Review | In English | |
| PMR | Payload Manifesting Review | In English | |
| PMR | Payload Mixing Review | In English | |
| PMS | Payload Mounting Structure | In English | → Mechanical engineering | 
| PMV | Permanent Manned Vehicle | In English | |
| POC | Payload Operations Center | In English | |
| POCC | Payload/Platform Operations Control Center | In English | |
| POCC | Payload Operations Control Center | In English | |
| POD | Payload Operations Division | In English | |
| POD | Precision Orbit Determination | In English | |
| PODTG | Precision Orbit Determination Task Group | In English | |
| POE | Pilot Operational Equipment | In English | → Aeronautics, aircraft | 
| POEM | Polar Orbiting Earth Mission | In English | → Astronomy → Earth sciences  | 
| POGO | Polar Orbiting Geophysical Observatory | In English | → Geophysics | 
| POGS | Polar-Orbiting Geomagnetic Survey | In English | → Geophysics | 
| POIC | Payload Operations Integration Center | In English | |
| POP | Perpendicular to Orbit Plane | In English | |
| POP | Polar-Orbiting Platform | In English | |
| POP | Preflight Operations Procedure | In English | → Aeronautics, aircraft | 
| POP | Prelaunch Operations Plan | In English | → Aeronautics, aircraft | 
| PORSEC | Pan Ocean Remote Sensing Conference | In English | → Congresses → Marine research, oceanography  | 
| POST | Payload Operations Support Team | In English | |
| POST | Program to Ootimize Simulated Trajectories | In English | → Aeronautics, aircraft | 
| POWG | Payload Operations Working Group | In English | |
| POWG | Payload Orbital Working Group | In English | |
| PPC | Payload Preparation Complex | In English | |
| PPCU | Partial Payload Checkout Unit | In English | |
| PPF | Payload Processing Facility | In English | |
| PPL | Production Payload | In English | |
| PPM | Payload Project Manager | In English | → Management | 
| PPP | Payload Patch Panel | In English | |
| PPR | Payload Preparation Room | In English | |
| PPS | Partial-Pressure Suit | In English | |
| PPS | Payload Pointing System | In English | |
| PPT | Prelaunch Package Test | In English | → 67973 | 
| PQGS | Propellant Quantity Gauging System | In English | |
| PrAA | Progress in Astronautics and Aeronautics | In English | → Serial publications, periodicals → Aeronautics, aircraft  | 
| PrAeS | Progress in Aerospace Sciences | In English | → Serial publications, periodicals → Astronomy → Aeronautics, aircraft  | 
| PRB | Parachute Refurbishment Building | In English | → Aeronautics, aircraft | 
| PRD | Payload Requirements Document | In English | |
| PRIS | Payload Remote Integration System | In English | |
| PRL | Payload Retention Latch | In English | |
| PRLA | Payload Retention Latch Actuator | In English | |
| PRLA | Payload Retention Latch Assembly | In English | |
| PRM | Payload Retention Mechanism | In English | → Mechanical engineering | 
| PRM | Posigrade Rocket Motor | In English | |
| PRR | Preflight Readiness Review | In English | → Aeronautics, aircraft | 
| PRRB | Payload Requirements Review Board | In English | |
| PRS | Payload Retention System | In English | |
| PRTLS | Powered Return To Launch Site | In English | |
| PS | Parachute System | In English | → Aeronautics, aircraft | 
| PS | Payload Specialist | In English | |
| PS | Payload Station | In English | |
| PS | Payload Support | In English | |
| PSA | Payload Service Area | In English | |
| PSA | Payload Support Avionics | In English | → Aeronautics, aircraft | 
| PSBLS | Permanent Space-Based Logistics System | In English | → Maintenance and logistics | 
| PSC | Payload Support Contractor | In English | |
| PSC | Planetary Spacecraft | In English | |
| PSCL | Propellant Systems Cleaning Laboratory | In English | → Research institutes | 
| PSDE | Payload and Spacecraft Development and Experimentation | In English | |
| PSDP | Payload Station Distribution Panel | In English | |
| PSDP | Payload System Distribution Panel | In English | |
| PSE | Payload Service Equipment | In English | |
| PSE | Payload Support Engineer | In English | |
| PSE | Payload Support Equipment | In English | |
| PSF | Propellant Servicing Facility | In English | |
| PSIG | Propulsion Systems Integration Group | In English | |
| PSM | Propellant Storage Module | In English | |
| PSP | Payload Signal Processor | In English | |
| PSP | Payload Specialist Panel | In English | |
| PSP | Payload Support Plan | In English | |
| PSP | Planetary Scan Platform | In English | |
| PSP | Planetary Scan Probe | In English | |
| PSR | Payload Safety Review | In English | → Accidents, risks, safety | 
| PSS | Payload Specialist Station | In English | |
| PSS | Payload Status System | In English | |
| PSS | Payload Support System | In English | |
| PSS | Propellant Supply Subsystem | In English | → Aeronautics, aircraft | 
| PSSP | Payload Specialist Station Panel | In English | |
| PSTL | Pressure Model Static and Transient Launch Configuration | In English | |
| PSV | Planetary Space Vehicle | In English | |
| PSV | Probability of Vehicle Success | In English | |
| PSW | Paris Space Week | In English | → Congresses | 
| PTB | Payload Timing Buffer | In English | |
| PTCC | Propulsion Test Control Center | In English | |
| PTCS | Propellant Tanking Computer System | In English | → Computer hardware | 
| PTS | Payload Test Set | In English | |
| PTS | Payload Transportation System | In English | → Vehicle engineering | 
| PTSF | Payload Trunnion Support Fixture | In English | |
| PTV | Pathfinder Test Vehicle | In English | |
| PU | Propellant Unit | In English | |
| PU | Propellant Utilization | In English | |
| PUCS | Propellant Utilization Control System | In English | |
| PUGS | Propellant Utilization and Gauging System | In English | |
| PUV | Propellant Utilization Valve | In English | |
| PVA | Preburner Valve Actuator | In English | |
| PVA | Propellant Valve Actuator | In English | |
| PVDS | Propellant Vent and Drain System | In English | |
| PVO | Pioneer Venus Orbiter | In English | → Astronomy | 
| PVT | Preflight Verification Test | In English | → Aeronautics, aircraft |