[NSRCA-discussion] Rudder

[Woodward, Jim]

Bob - the correct answer on using aileron during a radius, for the
purpose of wind correction, is that if you are NOT using it is a
downgrade(able).   It's impossible in every way to use only rudder
through a radius actually keep the "wings-level" to the intended flight
path.

 

Maneuvers are to be wind-corrected and flown in a single vertical plane
- anything less is uncivilized :-) 

 

The wings should be "level" at every part of the curve/radius, and the
only way to do that is by rolling the plane, slightly.

Thanks,

Jim W.

 

 

From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Bob
Richards
Sent: Wednesday, October 10, 2007 1:19 PM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] Rudder

 

That is the best description I have read so far. Agree 100%.

 

Not long ago, I was talking with someone about wind correction and
mentioned that a very small amount of aileron should be used when
pulling a radius to a vertical line. He said if he ever saw me do it
while he was judging, he would downgrade. I told him if I do it right,
he will never see it. :-)

 

Bob R.



J N Hiller <jnhiller at earthlink.net> wrote:

	This has been an interesting discussion. The airplane dose not
establish a crab angle on it's own when in the air. The airplane has a
crab angle in horizontal flight and when it is pulled vertical the wings
will not be perpendicular to the flight path without a roll correction.
The need for the correction will be apparent and automatically applied
prior to finishing the radius. When a roll input is applied with
elevator it changes the heading in the direction of roll, (think barrel
roll) in this case into the wind as it finishes the radius. Most of the
time it will be excessive requiring a little opposite (down wind) rudder
correction unless the upwind wing was high entering the pull-up. Once
the airplane is leaning to one side in a vertical the lean will increase
and is especially noticeable as it slows. Some increase is needed to
maintain wind correction and the need for opposite rudder to maintain a
vertical track depends on how rapidly the airplane is decelerated. Most
of the time I will try to apply some down wind rudder with the roll
correction at about 45 degrees, before the need becomes visible as it is
nearly always required. In short just point the airplane in the
direction you want it to go and stir the sticks as necessary.

	Jim Hiller
 
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