| Answer | Crossword Clue |
|---|---|
| SST | Retired plane: Abbr. |
| SST | Retired fast plane (abbr.) |
| SST | Retired fast plane: Abbr. |
| SST | Retired plane |
| SST | Plane that's about to be retired |
| EMER | Retired: Abbr. |
| SSTS | Retired airplanes: Abbr. |
| SST | Retired flyer: Abbr. |
| SSTS | Retired jets: Abbr. |
| SST | Retired jet (abbr.) |
| SST | Retired airplane: Abbr. |
| SSTS | Retired planes: Abbr. |
| SSTS | Retired fast jets: Abbr. |
| SSTS | Retired fast planes: Abbr. |
| EMER | Retired professor's title: Abbr. |
| EMER | Retired professor's title (Abbr.) |
| EMER | Retired prof's title: Abbr. |
| EMER | Retired professor's title (abbr.) |
| SSR | Abbr. retired after Gorbachev's resignation |
