 |
| Subject | English | Thesaurus |
| abbr., scottish | Common Engine Program | CEP (US Army) |
| avia. | current engine option | CEO (Alexander Matytsin) |
| abbr., scottish | Engine Model Derivative Program | EMDP (USA) |
| mil., abbr. | Jet Engine Smoke Abatement Program | JESAP |
| abbr., scottish | Light Helicopter Turbine Engine Co. | LHTEC (USA) |
| abbr., comp., net. | Network Services Engine | NSE |
| avia. | new engine option | NEO (Alexander Matytsin) |
| missil. | PuFF engine | pulsed fission-fusion engine (MichaelBurov) |
| missil. | pulsed fission-fusion engine | PuFF engine (MichaelBurov) |
| abbr., astronaut. | Space Shuttle Main Engine program | SSME |
| softw., abbr. | Spatial Services Engine | SSE |