REFLECTOR: Canard Landing Lights

Andy Millin amillin at sbcglobal.net
Sat Apr 4 17:10:49 CDT 2009


In doing my research on HID there was also a mention of UV radiation.  HID
puts out the UV.  Not a problem in cars.  Need to make sure your materials
are protected or immune.

 

Andy

 

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Don Johnston
Sent: Saturday, April 04, 2009 12:18 PM
To: reflector at tvbf.org
Subject: REFLECTOR: Canard Landing Lights

 

Andy,

 

The primary purpose of mine will be as recognition lights. They're HID's
that will be able to pulse. I thought that in flight there wouldn't be a
problem. But being limited to 4 minutes on the ground could be an issue. 

 

Another thought is to drill a hole (3/8") from the back of cavity to the
rear of the canard. That might create enough airflow to keep it cool.

 

The people at Xevision said they had the lights installed in Lancair's and
other composites so there must be a way to do it without having a heat
problem.

 

-Don

 

> Don,

> 

> I had originally planned on putting the lights in  my canard.  Reports
were

> that the curve of the lens for the canard was dispersing the light so much

> that it was not effective as a landing light.  In the end it was more of a

> recognition or running light.  I decided not to put them in.  On the heat

> issue, I would imagine having 90+ MPH wind over the thing will keep it
cool.

> 

> Andy

> 
>From: reflector-bounces at tvbf.org
<http://www.tvbf.org/mailman/listinfo/reflector>  [mailto:reflector-bounces
at tvbf.org <http://www.tvbf.org/mailman/listinfo/reflector> ] On
>Behalf Of Don Johnston
>Sent: Saturday, April 04, 2009 10:47 AM
>To: reflector at tvbf.org <http://www.tvbf.org/mailman/listinfo/reflector> 
>Subject: REFLECTOR: canard landing lights
> 
>For those of you that have landing lights in the canard:
> 
> 
> 
>Have you done anything for ventilation/cooling? I just did a test run on
>mine and after 5 minutes the lenses started getting soft. I don't know if I
>need to go with thicker lenses (I'm currently using 3/32") or trying to
move
>some air through the cavity to keep things cool. 
> 
>-Don Johnston
>XL-RG

 

 

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