| Answer | Crossword Clue |
|---|---|
| RAMJET | Fast plane engine |
| RAMJET | Plane engine |
| SCRAMJET | Hypersonic plane engine |
| PROPJET | Turbine engine plane |
| NACELLE | Plane-engine housing |
| FANJET | Type of plane engine |
| RAMJET | Type of plane engine |
| DCTEN | Long-range three-engine plane |
| AIRFRAME | Structure of a plane without the engine |
| firewall | partition made of fireproof material to prevent the spread of a fire from one part of a building or ship to another or to isolate an engine compartment, as on a plane, automobile, etc. |
