VECTOR
| Date | Clue |
|---|---|
| 2018-08-15 | Airplane course |
| 2017-01-03 | Airplane's direction |
| 2012-09-25 | Missile heading |
| 2011-10-24 | Course taken by a plane or missile |
| 2010-07-29 | Airplane heading |
| 2009-11-19 | What an arrow may represent |
| 2008-07-06 | Missile's course |
| 2005-12-09 | Missile datum |
| 2004-11-04 | Missile's course |
| 1996-09-29 | Missile's heading |
| 1996-01-18 | Missile's heading |