Flashing yellow light
Saw an aircraft at low level tonight, almost certainly a helicopter (I was driving so couldn't hear it) with usual red/green/white nav lights plus a flashing YELLOW light on the tail. I presume it was military since my understanding is that anti-collision lights on civil helis have to be flashing red.
It wasn't bright yellow but it certainly didn't look white. By the configuration of the lights I reckon it could have been a Chinook. Is this some kind of NVG-compatible lighting fit?
Any enlightenment appreciated.
NS