Message-ID: <001d01c10d55$990afd20$25a921d1@pavilion>
From: "J. N. Cameron" <toucan@The-I.net>
To: "Lancair List" <lancair.list@olsusa.com>
Subject: ES HStab incidence; weight & balance
Date: Sun, 15 Jul 2001 12:43:01 -0500
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        My first ES had a completed C.G. that was right at the forward
design limit; in fact, dead empty with no pilot, it was about 0.5" ahead of
the forward limit.  The nose-heaviness was not so much an issue in trimming
for approach --  I found I could do that OK with the standard size elevator
trim tab -- but in getting the nose to settle gently onto the runway after
touchdown.  I tried a lot of different approach combinations, flaps, speed,
throttle settings, etc., but I always got a more solid plunk of the
nosewheel than I would have liked.
    Jim Scales told me a while back that he likes to land his ES with the
elevator trim run full up, even if he has to hold forward pressure on the
stick.  He says it makes for a gentler nosewheel touchdown.  Haven't tried
it, myself.
    The recommendation to mount the HStab with a -0.5 degree incidence came
from Carsten, maybe a couple of years ago, so perhaps he has since revised
his opinion.  Somewhere between 0 and -0.5 is probably right, but so long as
the weight and balance are pretty far forward, I'm not sure it'll make a lot
of difference.
    One thing I'm doing different on ES #2 is to use an MT prop, which will
save about 20 pounds 'way out front where it matters.  I'll let you know
what difference that makes in a couple of months, if all goes well.

Jim Cameron
N143ES reserved


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