Under dim lighting conditions, LED position lights probably would help. In
bright noonday sun... well, it's hard to compete with the sun.

Bill Daniels

"Ramy" wrote in message
oups.com...
Interesting. will these LED lights can also help the more common issue
of visibility during day time?

Ramy

Bill Daniels wrote:
"5Z" wrote in message
oups.com...

Marc Ramsey wrote:
lights, but it is hardly dangerous (and I know of a few people who
have
installed lights for precisely this reason). In fact there are a few

So Mark, any chance of enlighetning(!) us about these installations?
I'm very interested in finding out how it was done both technically and
of course the legalities for my Standard airworthiness ASH-26E.

Thanks,
-Tom


There was a long thread on rec.aviation.homebuilding last year about home
made LED position lights. It turned out that the FAA specs are pretty
lenient - easily met with high-brightness LED's. The gist is that if you
met the FAA angular, brightness and color specifications, you could build
your own lights and get them signed of - at least for an experimental
airworthiness certificate.

I have seen pictures of glider winglets with red or green plastic
(Plexi?)
tips that had high brightness LED's imbedded in them. Looking at the
current draw of these LED arrays it appears that a couple of "D" size
lithium batteries in each winglet would power them for 12 - 24 hours.
That
would mean they could be left on for the entire flight so no in-wing
wiring
or switches would be needed.

There is also a Nimbus 4DM in, I think, Argentina with an array of ultra
high brightness Luxeon white LED's on the landing gear as a landing
light.
I doubt even these would actually light up a runway but they would be
bright
enough to produce visible reflections from runway stripes and edge
reflectors.

Bill Daniels