GIRO
| Date | Clue |
|---|---|
| 2023-04-07 | Predecessor of a copter |
| 2016-10-25 | Big name in bicycle helmets |
| 2012-07-22 | Copter's forerunner |
| 2010-09-02 | Not a dupe: Abbr. |
| 2009-05-30 | Big name in cycling helmets |
| 2007-04-28 | Early copter |
| 2002-01-20 | Early whirlybird |
| 2001-12-07 | Copter's forerunner |
| 1998-05-01 | Copter's forerunner |
| 1994-02-06 | Copter kin |