Mailing List lml@lancaironline.net Message #9874
From: <JMcKibbin@aol.com>
Subject: Re: Gear, GM 1, to long for the 320/360 Spars?
Date: Sun, 27 May 2001 18:07:11 EDT
To: <lancair.list@olsusa.com>
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Although this thread ran a few days ago, I have been on vacation (still am,
actually) so I didn't see it.  Hope the following is still of some relevance.

When I discovered that the gear legs in my LNC2 were too long to fit between
the main and rear spars, I contacted Lancair.  They said they were aware of
this happening on a few early kits and immediately offered to fix it.  I sent
them the two gear legs along with some dimensions of exactly how long I
needed them.  They had their supplier (Snowline ?) rework the legs to my
specifications and then repaint them for FREE.  I also had them remove the
lever for the cable actuated inner gear doors at the same time.  My only
costs in all of this were shipping.  My kit dates from 1989 (SN 476, FB 45,
IIRC). It was in the mid-nineties that I had the rework done.  Whether they
are still doing this for free I don't know but it sure wouldn't hurt to ask!
Although it will take a couple of weeks, it is the cleanest solution for this
problem, IMHO.

Although the following cautions should be obvious, I will mention them
anyway.  The critical dimension is between the faces of the trunnion
shoulders, not the ends of the trunnions.  The ends can be ground off if you
have to.  You should measure the available distance as accurately as possible
(not easy since it is an inside measurement) and then specify them a little
short (e.g., 1/32 to 1/16 inch) and make up the difference with a buildup of
BIDs under the aft bearing block.  That way you have a little left-right
adjustment to get the wheel alignment correct and still get a nice tight fit
between the spherical bearings and the shoulders on the gear legs and thus
avoid having the gear legs shift fore-and-aft during use.

Jim McKibbin
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LML website:   http://www.olsusa.com/Users/Mkaye/maillist.html
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Please send your photos and drawings to marvkaye@olsusa.com.
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