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Ok, LML'rs! Here is some info I just took down at the
airport... This pertains to my elevator trim, and lack thereof at almost all
flap settings.
Nose Down Trim - With the top skin of the
elevator as the datum, the trim tab motors to about 65 degrees up (for full nose
down trim.) The motor does not stop running when the tab reaches that position.
It takes 23 seconds to run from full nose down to neutral trim. (!) The tab is
just a bit flimsy against the rod, as it is at full extension. (In other words,
the slipstream can push it back towards trail, up to about 10 - 15
degrees.)
Nose Up Trim - With the bottom skin of the
elevator as the datum, the trim tab motors to about 35 degrees down for nose up
trim. That takes 9 seconds from neutral, and the motor or drive rod clicks at
the end of its travel. The motor does not stop at the end of its travel. The tab
is rather stiff against the slipstream as the rod is not extended as
much.
At either limit, I do not notice the rod end at the tab
slipping in the nut. The motor is mounted in the elevator behind a panel with
small cherry rivets, and is rather noisy/grindy... I wouldn't say it sounds like
it's coming apart, just noisy.
I think it's obvious I need more nose up trim travel. That
will entail drilling out the rivets, opening the panel and checking/fooling with
the motor/servo.
What are your thought, Lancair 360 experts!??? Thanks in
advance!
Scotty G
Dago Red Unlimited Air Race Team
Unleashed
Sport Class Air Race Team
WarbirdAeroPress.com
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