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dj45
Joined: 25 Jul 2006
Posts: 92
Location: Jackson MI
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 Posted: Tue Jan 22, 2008 10:24 am Post subject: LED Lighting |
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Has anyone thought much of making LED landing/taxi lights?
Just something that might be fun to mess around with.
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Dan Stanton
N801S CH 801
N226BS CH701
N24DS CH750 |
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fvalarm(at)rapidnet.net
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| Posted: Tue Jan 22, 2008 12:09 pm Post subject: LED Lighting |
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Yes, it's happening. Here's one that's been discussed lately on
Vansairforce. See http://www.aeroleds.com/product.html
Bevan
RV7A wiring
--
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Speedy11(at)aol.com
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| Posted: Wed Jan 23, 2008 7:00 am Post subject: LED Lighting |
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Dan,
As Bevan mentioned, aeroleds.com is manufacturing two LED based landing/taxi/recognition lights. I don't know if they perform well as I haven't seen them in person yet. I was on the verge of ordering a pair when I discovered they have a 10% restocking fee. That, in my opinion, is too high, so I didn't order them. I would like to try them out - and if suitable I would keep them.
I'm experimenting with 1W LEDs with optics and it appears you can produce enough illumination with multiple LEDs to at least make an acceptable taxi/recognition light. I'm not yet convinced they will suffice for a landing light.
I'm also experimenting with MR-16 lights, but they get very hot and would require cooling to be mounted in an enclosed wingtip.
I intend to use HIDs for the landing lights and perhaps the Aerosun Lite for the taxi/recognition light.
Stan Sutterfield
www.rv-8a.net
| Quote: | Has anyone thought much of making LED landing/taxi lights?
Just something that might be fun to mess around with. |
Start the year off right. Easy ways to stay in shape in the new year.
[quote][b]
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dj45
Joined: 25 Jul 2006
Posts: 92
Location: Jackson MI
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| Posted: Wed Jan 23, 2008 3:26 pm Post subject: Re: LED Lighting |
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Stan, thanks for the reply. How are you coming on the lights?
I have just started messing around with them and was wondering if anyone else had come up with anything.
I agree about the charge for restocking for something you don't know will be as advertised.
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Dan Stanton
N801S CH 801
N226BS CH701
N24DS CH750 |
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Eric M. Jones
Joined: 10 Jan 2006
Posts: 565
Location: Massachusetts
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| Posted: Thu Jan 24, 2008 6:34 am Post subject: Re: LED Lighting |
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I have written about this extensively on this list and IMHO--
1) Aeroleds is to be saluted for making their led landing and taxi light.
There will be many good led products. I have said to interested parties that any led product you can now buy becomes obsolete in the time it takes to develop a product. The design engineer's current nightmare!
The best LED product efficiency is nearly 100 lumens/watt and soon will be 150 lumens/watt (7X better than halogens).
For experimenters, I recommend you check--
http://www.dealextreme.com/products.dx/category.917
Dig around the site until your head spins. Also Kaidoman.com .
Cheap prices, fast shipping. Amazing stuff. As for LED landing lights, you could just tape together a few of their big flashlights and do the job cheaply. Check their 20W and 50W leds!!!! Awesome.
I still have a couple LED technical notes on my website:
www.periheliondesign.com/downloads/aircraft_beacons_using_leds.pdf
(out of date now but still interesting).
www.periheliondesign.com/downloads/redandgreenledpositionlights.pdf
and I still sell the LED tail light, which I have upgraded to a 2X brighter led.
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Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
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mikefapex
Joined: 05 Jul 2007
Posts: 70
Location: Colorado
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| Posted: Thu Jan 24, 2008 3:21 pm Post subject: Re: LED Lighting |
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I purchased the AeroSun 800 for my weight shift trike nose landing light. Flying sport pilot I don't fly at night, but do land in civil twilight.
The product is well made, very sturdy, bright as hell, easy to wire up. My single light is controlled with one switch, as either light or wig-wag/flasher.
I talked to the folks at Aerosun before purchase. They even sent me to Aircraft Spruce for a lesser price than direct from them.
http://www.aircraftspruce.com/catalog/elpages/1105710.php
Yes, I could build my own LED light but for the $$ their unit is very nice, works well. Whatever floats your boat.
Fly safe,
Mike
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Speedy11(at)aol.com
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| Posted: Thu Jan 24, 2008 7:53 pm Post subject: LED Lighting |
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In a message dated 1/24/2008 3:00:52 A.M. Eastern Standard Time, aeroelectric-list(at)matronics.com writes:
| Quote: | Stan, thanks for the reply. How are you coming on the lights?
I have just started messing around with them and was wondering if anyone else had
come up with anything.
I agree about the charge for restocking for something you don't know will be as
advertised. |
Dan,
I did some experiments about a year ago and then again recently. I'm using Luxeon K2s which are one watt and produce about 80 lumen. Later model LEDs produce more lumen per watt.
I have some optics for them that focus the light nicely but it would require 6 or 8 to adequately illuminate in front of the plane. Also, mounting them and heat sinking are problems to be solved. The number of LEDs in series on a single power supply has to be carefully studied to make sure you don't over or under voltage them too much. With the Luxeon K2s, I can have only 4 on a single 12v power supply.
It appears the aeroleds.com guys have solved the problems and the best solution may be to wait for them (or someone else) to work out the bugs. ACS sells the AeroSun 800 for $155 each. My estimate is that you will have to invest about $100-120 to develop a similar light yourself, so their price is not too bad.
If the AeroSun 800 produces sufficient light, then I believe that is the best current option for LED-based landing/taxi lighting.
Stan
Who's never won? Biggest Grammy Award surprises of all time on AOL Music.
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