Headlights

"RST Engineering" wrote in message
...
Halogens run hotter than standard incandescents. You may want to test to
see how hot they really get (after you forget to turn them off for half an
hour after departure). That's what I would concern myself with a wood
structure.

Yep, me too. Also, if you use a standard rectangle headlight, they are
heavy, and you will need to make an adjustable mount.

Think about the driving light type of halogen. They have a nice narrow
beam. Also, how about doing like some of the old-time planes, and making it
flip down out of the bottom of the wing. That would be cool, huh?
--
Jim in NC

"Morgans" wrote in message
...

Think about the driving light type of halogen. They have a nice narrow
beam. Also, how about doing like some of the old-time planes, and making
it
flip down out of the bottom of the wing. That would be cool, huh?

I have a pair of those from Harbor Freight. Gonna mount them in the aluminum
gear leg fairings with one of Jim's flashers for anti-collision.

Rich S.

Actually, the Harbor Freight lights are top of the list, have you
plugged them in to test for heat?

"Lou" wrote in message
oups.com...
Actually, the Harbor Freight lights are top of the list, have you
plugged them in to test for heat?


No, they're still in the box (five years after I bought them). In my case,
they would be mounting to the landing gear leg (2½" 4130 steel tube) and be
faired with .020" aluminum, so heat wouldn't be too much of a factor. Being
in the airstream would keep them cooler than being enclosed in the wing.

I have two regular aircraft landing lights in the left wing under a
Plexiglas® cover and have not had a heat problem there. I wish I had made
two independently adjustable mounts so one could be aligned for taxi and the
other for landing. Actually, since I don't fly at night any more, I should
take them out and make an evaporative beer cooler out of the housing.

Rich S.

And being in the airstream is going to make them popcorn during rain or snow
hitting the hot bulb.

Jim



"Rich S." wrote in message
...

.. Being
in the airstream would keep them cooler than being enclosed in the wing.

"RST Engineering" wrote in message
...
And being in the airstream is going to make them popcorn during rain or
snow hitting the hot bulb.

Rain? Snow?? Flying???

Bwahahahaha.

Rich S.

"RST Engineering" wrote in message
...
And being in the airstream is going to make them popcorn during rain or
snow
hitting the hot bulb.

Kinda like how that happens all of the time while they are on cars?

Jim, Jim, Jim.... g

*Most* people put those kind of bulbs in front of a reflector, and behind a
lense?
--
Jim in NC

"Rich S." wrote

I have a pair of those from Harbor Freight. Gonna mount them in the
aluminum
gear leg fairings with one of Jim's flashers for anti-collision.

Two thoughts, (rather questions) on the subject.

Don't they have a pretty slow heat up, cool down time? If the answer is
yes, they would not be as recognizable as something that had an instant off
(dark), instant on (bright) cycle - like LED's, would they? Or is that not
a big factor?

Is the quartz halogen evaporation, condensation cycle a problem in terms of
short burn out time, when it is cycled on and off, without time to stay hot?
I have no idea, just a question. Are they commonly used with flashers
without problem?

Putting them in gear fairings does seem like a good idea, though.
--
Jim in NC

"Morgans" wrote in message
...

Don't they have a pretty slow heat up, cool down time? If the answer is
yes, they would not be as recognizable as something that had an instant
off
(dark), instant on (bright) cycle - like LED's, would they? Or is that
not
a big factor?

I remember flying the Adcock (A-N) range from Yakima to Ellensburg one day
in my Dad's Cessna 120. Something made me look up and I saw a C-124 coming
straight at me about ¼ mile away. All I remember is his anti-collision light
flashing in my eyes. That light was an oscillating beam like a train
headlight of the era. It didn't have the instant off/on quality of a strobe
or an LED, but it sureintheheck got my attention RFN!

Jim has published a lot of dope on flashers for anticollision purposes.
IIRC, he not only takes the properties of the device into consideration but
also the properties of the H.U.M.A.N. interface system. If I ever get around
to putting this together, I look it up.

Than again, I might be wrong. In that case, never mind.

Rich S.