Mailing List lml@lancaironline.net Message #2444
From: R & A Colebrook <rossann@olympus.net>
Subject: 235 Nose Gear Door
Date: Wed, 26 May 1999 09:08:02 -0700
To: Lancair List <lancair.list@olsusa.com>
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1. Nose gear door actuator
My actuator is at the forward location, just aft of the fire wall.  I had to
build a twist into the door to get the aft end of the door tightly closed.
I would use the more aft position for the actuator if I did it over.  It is
hard to keep the aft end of the door fairing well with the actuator at the
extreme forward end.

2. Cutout for nose wheel
I made the necessary bump by cutting a hole in the aluminum door, making a
foam block the shape of the bump, hot gluing it in the hole and glassing
over the foam on the outside then digging out the foam from the inside.  A
word of caution: if the hole is too narrow it is possible to hang up the
nosegear on the edge of the hole.  The horseshoe shaped guide around the aft
end of the wheel can catch on the edge of the hole on extention if the gear
is slightly cocked and the door is slightly slow in getting out of the way.
Bevel the edges of the hole as much as possible.  You might consider just
letting the tire stick out.  Boeing 737's fly with exposed tires.

3. Revise linkage
I did not consider revised linkage to eliminate the bump as my oelo nose
gear was a retrofit.  There is plenty of unused room in the wheel well.  A
well engineered revision to eliminate the bump is a good idea, but I did not
pursue it.

Ross W. Colebrook  N7828


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