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I
would not recommend using the flaps to adjust rigging. Because they are
inboard, it takes more flap deflection (and thus more drag) to correct for this
condition. I know - I tried it on my 235.
Charles, when you said,
"In straight and level cruise, I need tokeep my foot on the left
rudder pedal."
Did
you mean that using left rudder keeps the plane from rolling right, or that the
ball is to the left? If the ball is to the left, I would recommend
adjusting the rudder trim (bend the trim tab if it is a static tab, electric
trim if you have a deluxe example of a 360) for cruise flight. Rudder
forces are much less in slow flight and represent a much smaller portion of a
typical flight profile for Lancairs, so personally I would rather be in trim in
cruise and worry about minding the rudders on approach /
departure.
However, if trimming the rudder places the ball out of
center, then you are back to correcting roll trim. Both of my Lancairs
(first 235, now 320) required aileron trim in flight; and pitching my prop
higher plus electronic ignition raised my maximum cruise enough on my 235 that I
needed to increase the size of the aileron trim tab.
I
don't understand all of the flight dynamics such as P-factor, etc., but
empirically I am certain that there is some built-in correction for prop effects
that causes aileron trim to change at different speeds and power settings.
Regards,
Bill
From: marv@lancair.net
[mailto:marv@lancair.net]
Sent: Wednesday, June 04, 2008
07:39
To: lml@lancaironline.net
Subject: Re: rigging a
320/360
Posted for "Robert Jude"
<bobljude@charter.net>:
Adjust one or both of the flaps to get her
flying level with no lateral stick
pressure.
Bob Jude
N65BJ
-----
Original Message -----
From: marv@lancair.net
To: lml
Sent: Monday,
June 02, 2008 2:49 PM
Subject: Re: rigging a
320/360
Posted for "charles nelson"
<chas_nelson@sbcglobal.net>:
I need some help.
My plane is a
long story, but a it is a great plane.
My ailerons and rudder are out of
rigging. In level flight my right aileron
when trimmed is lower than the
left. In the neutral position, both ailerons
in neutral, the plane rolls
right. In straight and level cruise, I need to
keep my foot on the left
rudder pedal. Can anyone guide me on how to true
out this airplane?
Charles Nelson
Ph:
707-291-3525
<mailto:chasnelson@aol.com>
chasnelson@aol.com
<mailto:chas_nelson@sbcglobal.net>
chas_nelson@sbcglobal.net
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