Clue | Source | Date |
---|---|---|
One of a space shuttle's pair | USA Today | 24 Feb 2018 |
One of a space shuttle's pair | ||
Triangular feature of the Concorde | USA Today | 18 Sep 2017 |
Triangular feature of the Concorde | ||
Swept-back feature of some aircraft | ||
Triangular stabilizer on an aircraft | ||
Jet design |