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I have to admit that all the turkey and maybe just a little of the liquid
refreshment offered this Christmas must have dulled my already blunt brain.
When I went back to look at the problem the following day I realised that
the tach pulse generator is offset from the centre line of its drive.  This
makes it possible for it to be rotated about its drive axis and due to this
it will provide the required clearance from the vacuum pump.  All is now
well although the maximum clearance available is minimal. BUT it does clear.

Jim, I love your method for fitting cowlings, really works well.  Would work
even better if the Lancair top and bottom halves were even anywhere near
matching each other at the front.  If one side is mated the other side is at
least 1/2" out.  I feel that this is too much to expect the cowl to spring
out and it would leave it with a lot of residual stress.  Right now I feel
that I will have to put radial cuts in  the top cowl forward flange,
adjacent to the spinner, to allow the cowl to open up the 1/2" that is
needed.  I can always glass it up when I have the fit I need.

Does anyone have any other ideas?

Happy New Year to all.

Ian Crowe

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Please send your photos and drawings to marvkaye@olsusa.com.
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