Andrew Perren Posted April 16, 2017 Share Posted April 16, 2017 Hi guys, quick question for the Harrier gurus. Building a Hasegawa GR7/9 as ZD404 Lucy in Afghanistan. The upper and lower anti-collision beacons ( triangle shaped ones) seem to have two distinct variants. Clear with a red bulb or green glass unknown bulb colour. Can anyone share what the difference is and why ? My ref pics show ZD404 fitted with clear so that is what I will go for but I'm still curious. Cheers Andrew P Link to comment Share on other sites More sharing options...
Troffa Posted April 16, 2017 Share Posted April 16, 2017 Anti-Collision beacons are traditionally (and probably legislatively) "White" for daylight, "Red" for Night. In my day we had a similar (if not the same) Anti-Col Beacon on the Tornado F3, and initially, the lense cover was swapped out dependant on day or night flying. Later on in it's service, a modified light assembly was fitted that allowed the lamp to be either red or white at a flick of a cockpit switch. That Bluey-green lense on some Harrier Anti-Col Beacons looks suspiciously like one optimised for use with Night Vision Devices. (i.e. NVG equipped crews can see you, bad guys can't.) Link to comment Share on other sites More sharing options...
Dave Swindell Posted April 16, 2017 Share Posted April 16, 2017 Wot Troffa sez- green glass = NVG compatible 2 Link to comment Share on other sites More sharing options...
Andrew Perren Posted April 16, 2017 Author Share Posted April 16, 2017 Thank you very much guys. I'll keep it simple and match my refs for day ops. 1 Link to comment Share on other sites More sharing options...
Harrierpilot Posted April 16, 2017 Share Posted April 16, 2017 The green coloured lensed lights flash white.... a bit like the old fasthioned flash bulbs for you camera. The lights for the NVG's a small low voltage bulb which don't look like they are switched on to the naked eye 2 Link to comment Share on other sites More sharing options...
Troffa Posted April 16, 2017 Share Posted April 16, 2017 Thanks Mr Harrier Pilot, so the green lense still shows white to the naked eye, but at a reduced intesity if viewed through NVG. And the IR light/ strobe is invisible to the naked eye but visible through NVG ? Link to comment Share on other sites More sharing options...
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