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#1
August 23rd 05, 11:32 PM
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Big aircraft like Gulfstreams etc route ram air to cool the enclosed
landing lights through a piccolo tube. Because you need forward speed there is a time restriction using them on the ground. Taxi lights are on the gear so they don't need to cool them 
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#2
August 24th 05, 03:17 AM
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That makes sense, but I'm curious of 2 things. Do you need an exit for
the air? Is there a screening material to keep bug from nesting while not in use? Lou
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#3
August 24th 05, 10:39 PM
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On 23 Aug 2005 19:17:01 -0700, "Lou" wrote:
That makes sense, but I'm curious of 2 things. Do you need an exit for the air? Is there a screening material to keep bug from nesting while not in use? Lou yes and yes.
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#4
August 25th 05, 07:51 PM
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Like he said yes and yes.
Some aircraft have a vent hole on the LE. The tube makes a turn to get rid of the rain etc then dumps into the LE and departs eventually where the wing de-ice hot air goes. Others get the air from the pnumatic system of the aircraft so it is already bug and water free and cools on the ground. Kind of hard to do that on a recip though.
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