JETPILOT From United States of America, joined May 1999, 3130 posts, RR: 27
Reply 2, posted (16 years 11 months 6 days 21 hours ago) and read 1726 times:
I believe the landing lights during daylight have a selection for the lights to flash. This makes the aircraft much easier to spot in a terminal environment by controllers and traffic. Landing lights are used during the day only to make the aircraft more visable, and serve no other purpose. The flashing makes the plane much more noticable in my experience.
Enroute at flight level I will flash my landing lights at oncoming traffic comming the other direction on the same airway at night. At different altitudes of course. This is a common practice.
Martyn From Germany, joined Sep 2015, 0 posts, RR: 0
Reply 3, posted (16 years 11 months 6 days 20 hours ago) and read 1726 times:
It is also supposed to prolong the life of the bulbs. They are not actually turning off, just dimming significantly. This prevents the filament from shock cooling and as they are not constantly on full power the bulb lasts longer.
L1011 From United States of America, joined May 1999, 1727 posts, RR: 8
Reply 5, posted (16 years 11 months 6 days 5 hours ago) and read 1727 times:
I've seen it done from inside the aircraft. It is very noticable when you are in cloud at night, because the whole cloud lights up. At first I thought it was lightning, but lighting flashes are more irregular.