[NSRCA-discussion] Weather Vane or Crab

Jay Marshall lightfoot at sc.rr.com
Sat Oct 13 06:18:42 AKDT 2007


This discussion is really getting old and stale!

Jay Marshall

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Lance Van
Nostrand
Sent: Saturday, October 13, 2007 10:13 AM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] Weather Vane or Crab

Or you could simply do the math.  I thought we had more than one engineer in

our group.  This took me less than 5 min to model but its been far more 
enjoyable to read this "world is flat vs round" thread.  You'd think it was 
the dead of winter.

----- 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
>> >>
>> >>
>> >>
>> >> _______________________________________________
>> >> NSRCA-discussion mailing list
>> >> NSRCA-discussion at lists.nsrca.org
>> >> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>> >>
>> >
>> > _______________________________________________
>> > NSRCA-discussion mailing list
>> > NSRCA-discussion at lists.nsrca.org
>> > http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>>
>>_______________________________________________
>>NSRCA-discussion mailing list
>>NSRCA-discussion at lists.nsrca.org
>>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
>
>
> _______________________________________________
> NSRCA-discussion mailing list
> NSRCA-discussion at lists.nsrca.org
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion 

_______________________________________________
NSRCA-discussion mailing list
NSRCA-discussion at lists.nsrca.org
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion



More information about the NSRCA-discussion mailing list