Mailing List lml@lancaironline.net Message #1677
From: colmar <jones@colmar.demon.nl>
Subject: Re:Elevator Bellcrank Distance
Date: Mon, 25 Jan 1999 00:36:57 +0200
To: RTWM02A@prodigy.com <RTWM02A@prodigy.com>, lancair.list@olsusa.com <lancair.list@olsusa.com>, lorn@mich.com <lorn@mich.com>, marvkaye@olsusa.com <marvkaye@olsusa.com>
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Stu Seffern;-
"On landing though, you need to goose yourself with the stick to get
the full range necessary.  

Don't know what the answer is but don't underestimate the value of an
altitude hold on your autopilot.  Especially when you are heavily
loaded near CG with less pitch stability. "

I agree with the autopilot remark, but the solution to the
"goosing-while-landing" configuration is easy. If you put a up-turned tab on the
elevator(s), (total about 3" width, 3/4" height, 45deg angle) then the elevator
is forced hard nose-down in cruise but much less hard at landing speeds. You can
then  change the position of the trim clamp device on the elevator push-rod
towards the rear,  so that balance trim at cruise is close to the forward motion
of the trim. There is then still enough backward trim movement to balance again
at landing speed/configuration with the stick near center.  
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