ENGINES
| Date | Clue |
|---|---|
| 2024-02-08 | Road runners? |
| 2022-06-11 | Inventions of Karl Benz and Rudolf Diesel |
| 2013-12-22 | What cowlings cover |
| 2012-11-04 | Ramjets, e.g. |
| 2009-04-16 | They're under hoods |
| 2003-10-12 | Some roarers |
| 2003-08-22 | Fan sites |
| 2003-04-18 | Ramjets, e.g. |
| 1999-02-28 | They might backfire |
| 1998-09-05 | 35-Down's quartet |
| 1997-12-27 | Gas guzzlers |
| 1994-07-26 | Turbojet and others |
| 1994-01-15 | Driving forces |