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12-07-2008, 12:24 PM
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Join Date: Feb 2006
Posts: 165
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LED lighting
I'm to the point where it is time to order lighting for my wings. HID from Duck Works for the leading edge. I have already bought Vans Landing lights in the tips which I will also keep and maybe oscillate. There will also be strobes at the tip. The real question is, has anyone used LEDs for position lights and how effective are they. Any input would be appreciated. Good to be back in the forum
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Craig Rufi
FLYING NOW AFTER 13+ YEARS. NICE FLYING AIRCRAFT!!
RV-10/Empennage/Wings/QB Fuselage/Wiring/Doors done finally, Cowling done. Stein panel complete, and connecting all those wires :-))Thousand Oaks, Ca. Dues paid for 2019
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12-07-2008, 03:00 PM
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Join Date: Sep 2006
Location: Stockton, CA
Posts: 1,207
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There are several recent threads on LED lighting for RVs, including links to the various manufacturers. Do a search on "LED" and see what pops up.
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12-07-2008, 04:48 PM
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Join Date: Feb 2006
Posts: 165
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LED
I will see what I can find. Thanks for the tip
__________________
Craig Rufi
FLYING NOW AFTER 13+ YEARS. NICE FLYING AIRCRAFT!!
RV-10/Empennage/Wings/QB Fuselage/Wiring/Doors done finally, Cowling done. Stein panel complete, and connecting all those wires :-))Thousand Oaks, Ca. Dues paid for 2019
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12-07-2008, 06:52 PM
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Join Date: Sep 2006
Posts: 155
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led lighting
I am using LED for my nav lights. SInce the lights are fairly narrow beam it is important that you orient them in multiple directions. Last night I was following another RV into oiur airport at dusk and he saw me land. His comment was that my nav lights worked wonderfully and he had no problem seeing me.
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12-07-2008, 09:17 PM
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Join Date: Jan 2005
Location: MN
Posts: 2,269
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Roll your own!!
Here is a link to some lights that look an awful lot like what Bernie has in his wingtips.  No complaints on not being able to be seen.
Cost is not bad for some luxeon LEDs and a big resistor. I have 380 hours on mine and I run them pretty much night and day.
More pics here.......
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Cheers,
Pete
Amateur Plane - RV-9A N789PH - 2350+ Hrs
Amateur Radio - KD0CVN
Doggies Delivered - 25+
St. Paul, MN
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12-08-2008, 07:32 PM
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Join Date: Jan 2005
Location: MN
Posts: 2,269
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LED Stuff
Hello - I've been gettting quite a few PMs asking about the materials used to make the LED nav lights. Here is the scoop:
Here are the resistors you need: link
here are the Green LEDS: (use cyan, not green) link
here are the Red LEDs: link
The luxeons should be mounted to an AL sheet with heat conducting, but electrically insulating compound: link
Mirrored Plexi can be found here: link
Here is the schematic:
More construction pics here
Questions:
Do they meet the FARs? - No idea - but they are crazy bright
Do they get too hot? - Mine have not - I run them whenever I fly - no issues in almost 400 hrs - the resistor tends to underdrive the LEDs. The resistor gets warm, but not hot.
Total cost? - LED prices seem to vary a bunch - I have about $60-$70 in both sides of mine.
My standard 1 beer fee applies - payable in the upper midwest (during the summer)........
__________________
Cheers,
Pete
Amateur Plane - RV-9A N789PH - 2350+ Hrs
Amateur Radio - KD0CVN
Doggies Delivered - 25+
St. Paul, MN
Last edited by petehowell : 12-27-2008 at 09:50 AM.
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12-21-2008, 12:13 AM
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Join Date: Sep 2006
Location: Stockton, CA
Posts: 1,207
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Quote:
Originally Posted by Flying Scotsman
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Hi Steve,
Those are the ones I just ordered.
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12-21-2008, 12:32 AM
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Join Date: Jan 2005
Location: MN
Posts: 2,269
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Fixed the Links
Not sure what happened - those are the right ones.
__________________
Cheers,
Pete
Amateur Plane - RV-9A N789PH - 2350+ Hrs
Amateur Radio - KD0CVN
Doggies Delivered - 25+
St. Paul, MN
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12-21-2008, 11:57 AM
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Join Date: Mar 2006
Location: Central Texas
Posts: 14
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Forward Voltage Total
Question: How does the cyan led with 3.9 forward voltage work when you only have a 12 V (14.4 V) supply? The total for 4 leds adds up to 15.6 volts. I don't doubt they light up as you have demonstrated, but why/how? I understand very little about electronics (perhaps only enough to get me into trouble) and can use the help in understanding. I want to use leds in my wingtips also.  Thanks! Cliff
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