7574EVER
Topic Author
Posts: 462
Joined: Sun Jan 04, 2004 4:47 pm

Airport Beacons

Mon Jan 19, 2004 11:58 am

Is it just me or does anyone else notice that at night, the white beacon flash can actually look a little green. Is this just because the light may be reflecting off the green lens on the other side? I'm guessing this is the reason because I can always clearly make out the lights for heliports (three light beacon). The only reason I ask this is because I just want to know if I should pay a visit to my AME.
Right rudder....Right rudder...Come on, more right rudder....Right rudder......Aw forget it, I quit!!
 
goboeing
Posts: 2429
Joined: Mon Jun 05, 2000 5:31 am

RE: Airport Beacons

Mon Jan 19, 2004 12:25 pm

I've never noticed any other color but white. I think the green looks blue, but it actually is a more teal color than green.

Nick
 
pilotpip
Posts: 2820
Joined: Fri Sep 19, 2003 3:26 pm

RE: Airport Beacons

Mon Jan 19, 2004 1:05 pm

7574EVER,

Next time you do a night flight, have your friendly local control tower flash you some light gun signals before you go to the AME. If you can't distinguish the colors then you may have an issue. I have a friend who had an issue with red/green color blindness and he had to go through quite an ordeal to get his medical back. I would agree that 'green' isn't the best way to describe the color of the beacon. Unless the field is out in the middle of nowhere it does look teal. When there is a dark contrast around it in a rural area it looks like a darker shade of green in my mind.
DMI
 
shaun3000
Posts: 439
Joined: Thu Mar 14, 2002 4:10 pm

RE: Airport Beacons

Mon Jan 19, 2004 5:10 pm

You should be given a red/green colorblind test during your FAA physical...

Anyway, one side is white, the other is supposed to be green, but I've seen em from blue to a green so faint it looked white.
 
Goldenshield
Posts: 5005
Joined: Sun Jan 14, 2001 3:45 pm

RE: Airport Beacons

Mon Jan 19, 2004 7:01 pm

Could it also be possible that he is seeing some green due to light refraction? I'm not sure where he is in relation to the beacon, but it could be a possibility  Smile.
Two all beef patties, special sauce, lettuce, cheese, pickles, onions on a sesame seed bun.
 
7574EVER
Topic Author
Posts: 462
Joined: Sun Jan 04, 2004 4:47 pm

RE: Airport Beacons

Tue Jan 20, 2004 7:07 am

Goldenshield,
I think that's most likely the case. Like I said, the colors on heliport beacons are as clear as can be.
Right rudder....Right rudder...Come on, more right rudder....Right rudder......Aw forget it, I quit!!
 
flightsimfreak
Posts: 698
Joined: Sun Oct 29, 2000 9:36 am

RE: Airport Beacons

Tue Jan 20, 2004 8:02 am

It could also be the type of bulb used. I believe that the one at my old airpor was a mercury bulb, and it burned blue-ish. You could definately distinguish from the white and green though.
 
dw747400
Posts: 1091
Joined: Wed Aug 15, 2001 8:24 am

RE: Airport Beacons

Tue Jan 20, 2004 8:10 am

At my home airport, the green lens fell off, so for the past week or two we've had two white!

Not really pertinent, but interesting.
CFI--Certfied Freakin Idiot

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