Light Gun Signals
| Signal | On the Ground | In Flight |
|---|---|---|
Steady green | Cleared for takeoff | Cleared to land |
Flashing green | Cleared for taxi | Return for landing (to be followed by steady green at the proper time) |
Steady red | Stop | Give way to other aircraft and continue circling |
Flashing red | Taxi clear of the runway in use | Airport unsafe, do not land |
Flashing white | Return to starting point on airport | Not applicable |
Alternating red/green | Exercise extreme caution | Exercise extreme caution |