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In a message dated 6/5/01 5:38:32 AM EST, dfs@gateway.net writes:

<< In answer to Paul Klusman's note, re: the effect on the horizontal stab due
 to a weighty elevator.
 
 Let's get real here, Paul - we're talking about ounces here, not pounds!
 Filling the concavity with one of the various super-light materials
 available and even covering it with a light fiberglass lay-up for durability
 won't add more than a couple of ounces. When you consider the possible (and
 probable) variations in finishing techniqes, this elevator isn't likely to
 be off the skirt of the bell curve of any other similar Lancair elevator. >>




So adding 8 ounces might not be too bad, but 1/2 pound would be dangerous?



Sorry, I couldn't resist!

Anyway, I guess I don't have much of a feel for what percentages we are
talking here. How much does a typical elevator assembly weigh? If we are
bumping the TOTAL weight (due to filler, extra glass, and counterweight) 1%
then I'd guess no problem. 5% weight gain, I'm not so sure. 10% and I'm
certainly going to call the factory for some feedback.

We can go on talking about ouces, pounds, probable finishing techniques, and
bell curves, but until we get a hard number we are taking a risk. I agree
that there is a distribution for finished elevator weights, and perhaps there
is enough margin in the stiffness of the tail that it is not a concern, but
we don't know until we get a hard number from the factory. If the factory is
no help in this regard, I'd try to find out if others have done the same
thing to their elevators.

Paul Klusman
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