[NSRCA-discussion] Weather Vane or Crab

[Ken Thompson]

For the record, I agree that airplanes do "auto-correct" to a point.  After 
the wind velocity has reached a particular point, I'm assuming it's 
different for every bird, the plane's ability to auto-correct will be 
overcome and the plane will begin to drift with the wind, unless corrected 
to maintain track.  Of course this also depends on the speed of said 
airplane, the faster you're going the less effect a crosswind will have.

I certainly could be mistaken, however, I believe this is what I've 
witnessed in my limited experience as an R/C pilot.  As I've stated before, 
there are many on this list with much more experience than I.

My question remains, is this auto-correcting called weather-vane or wind 
induced yaw or crab?

I suppose it means the same thing no matter what it's called, I'm simply 
trying to win an argument with a friend<BG>

And Ron,

I still like the white board and beer idea, many disagreements have been 
solved in that manner :-)

Ken
----- Original Message ----- 
From: "John Konneker" <jlkonn at hotmail.com>
To: <nsrca-discussion at lists.nsrca.org>
Sent: Saturday, October 13, 2007 8:50 AM
Subject: Re: [NSRCA-discussion] Weather Vane or Crab


> Sigh....
> With all due respect to everyone involved in this discussion.
> Let me suggest that you invest a $100 or so in a flight in a C-172 with an
> instructor.
> Pick a day when there is a good breeze, not gail!, and go for a flight.
> Ask him to fly up and down section lines, roads or whatever and 
> demonstrate
> the winds effect on the airplane.
> Ask him to demonstrate the "auto wind correcting" ability of the airplane.
> <G>
> You'll probably have to ask him more than once after he gives you a couple
> blank stares.
> Set the heading bug to the wind direction so that no matter what the
> airplane heading you can see from which relative direction the wind is
> blowing.
> Just a suggestion...
> JLK
>
>
>
>>From: "Ken Thompson" <mrandmrst at comcast.net>
>>Reply-To: NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>
>>To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
>>Subject: Re: [NSRCA-discussion] Weather Vane or Crab
>>Date: Sat, 13 Oct 2007 08:37:07 -0500
>>
>>Hey Ron,
>>
>>Would I be correct in assuming your quote in parenthesis should read,
>>"During that flight, airplane "intended" heading and track will not be the
>>same", or are you pointing out that a plane will "somewhat" crab, on it's
>>own, in a crosswind?
>>
>>BTW:  I like the white board and beer idea;-)
>>
>>Ken
>>
>>----- Original Message -----
>>From: "Ron Lockhart" <ronlock at comcast.net>
>>To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
>>Sent: Saturday, October 13, 2007 8:16 AM
>>Subject: Re: [NSRCA-discussion] Weather Vane or Crab
>>
>>
>> >
>> > If a pilot is flying to a specific point and points a trimmed airplane
>> > directly at that point, and there is wind
>> > somwhat perpendicular to the intended flight track over the ground the
>> > airplane will not get to that point.
>> > The airplane will get to a point down wind of the intended point.
>>(During
>> > that flight, airplane heading and
>> > track will not be the same.  There will be no wind hitting side of
>>plane.
>> > A
>> > yaw string on nose will be
>> > straight down fuse)     I suppose we just lost a few folks here....
>> > (sigh)
>>
>>All this would be a bunch easier with a white board and beer.  <VBG>
>> >
>> > Later,  Ron Lockhart
>> >
>> >
>> > ----- Original Message -----
>> > From: "Ken Thompson" <mrandmrst at comcast.net>
>> > To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
>> > Sent: Saturday, October 13, 2007 12:48 AM
>> > Subject: Re: [NSRCA-discussion] Weather Vane
>> >
>> >
>> >> Jim and all,
>> >>
>> >> Most of us realize the plane will do as you and others have described,
>>my
>> >> only point in questioning this is...is it called "weathervaning" while
>> > it's
>> >> in the air, or is it called "wind induced yaw or crab"?
>> >>
>> >> Best to you in your recovery.
>> >>
>> >> Ken
>> >>
>> >> ----- Original Message -----
>> >> From: "James Oddino" <joddino at socal.rr.com>
>> >> To: <alberji at charter.net>; "NSRCA Mailing List"
>> >> <nsrca-discussion at lists.nsrca.org>
>> >> Sent: Friday, October 12, 2007 7:14 PM
>> >> Subject: Re: [NSRCA-discussion] Weather Vane
>> >>
>> >>
>> >>   If it does, this is my
>> >> > definition of weathervaning.
>> >> >
>> >> > I'm recovering from an emergency appendectomy so I'm depending on 
>> >> > all
>> >> > you other guys to go try a cross wind stall turn with no rudder
>> >> > command tomorrow and report on your results.
>> >> >
>> >> > Best Regards, Jim O
>> >>
>> >>
>> >>
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>> >>
>> >
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