 |
| Subject | English | Thesaurus |
| abbr., scottish | Propulsion, Aerodynamics, Control, Integration, Research & development programme | PACIR (USAF) |
| missil. | PuFF propulsion | pulsed fission-fusion propulsion (MichaelBurov) |
| missil. | pulsed fission-fusion propulsion | PuFF propulsion (MichaelBurov) |
| abbr., astronaut. | Solid Propulsion Integrity Programme | SPIP (USA) |