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Why is wind directon expressed as "FROM"?



 
 
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  #31  
Old January 6th 06, 05:39 AM posted to rec.aviation.piloting
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Default Why is wind directon expressed as "FROM"?

On Fri, 06 Jan 2006 02:15:53 GMT, "Steven P. McNicoll"
wrote in
. net::


"Larry Dighera" wrote in message
.. .

So the placement of the pivot point is immaterial?


Well, where the pivot point is placed would determine
which side of the pivot point had the greater surface area.


I would think placement of the pivot point would determine the
arm/moment of the moveable vane. Either end could have greater surface
area than the other, but the end of the vane with greatest moment
(surface area * arm) will trail in the breeze.
  #32  
Old January 6th 06, 10:41 AM posted to rec.aviation.piloting
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Default Why is wind directon expressed as "FROM"?

On Thu, 05 Jan 2006 16:56:30 GMT, Jose
wrote:

When wind is =going= to New Jersey,
it's their problem.


Absolutely.


-- all the best, Dan Ford

email: usenet AT danford DOT net

Warbird's Forum: www.warbirdforum.com
Piper Cub Forum: www.pipercubforum.com
In Search of Lost Time: www.readingproust.com
  #33  
Old January 6th 06, 10:45 AM posted to rec.aviation.piloting
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Default Why is wind directon expressed as "FROM"?

On Thu, 05 Jan 2006 17:49:51 GMT, Jose
wrote:

One could easily design a vane that worked the other way.


But they didn't. All weather vanes point into the wind. So those New
Hampshire farmers must have been onto something, since their cast-iron
horses, carriages, sailboats, kiddies etc all point in the direction I
should land the Cub.


-- all the best, Dan Ford

email: usenet AT danford DOT net

Warbird's Forum: www.warbirdforum.com
Piper Cub Forum: www.pipercubforum.com
In Search of Lost Time: www.readingproust.com
  #34  
Old January 6th 06, 12:20 PM posted to rec.aviation.piloting
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Default Why is wind directon expressed as "FROM"?


"alexy" wrote in message
...

I think Larry got you on this one. It is not which side of the pivot
has the greatest area, but which side has the greatest "area-arm".
Think W&B. A weather vane consisting of an infinitely thin rod with a
20 sq inch arrow 1 inch from the pivot and a 3 sq inch tailfeater 10
inches from the pivot will point into the wind.


Of course, I was just keeping the explanation as simple as possible for
Larry.


  #35  
Old January 6th 06, 12:21 PM posted to rec.aviation.piloting
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Default Why is wind directon expressed as "FROM"?


"Larry Dighera" wrote in message
...

I would think placement of the pivot point would determine the
arm/moment of the moveable vane. Either end could have greater surface
area than the other, but the end of the vane with greatest moment
(surface area * arm) will trail in the breeze.


I didn't think you could understand an explanation using those terms.


  #36  
Old January 6th 06, 01:06 PM posted to rec.aviation.piloting
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Default Why is wind directon expressed as "FROM"?

On Fri, 06 Jan 2006 12:21:16 GMT, "Steven P. McNicoll"
wrote in
. net::


"Larry Dighera" wrote in message
.. .

I would think placement of the pivot point would determine the
arm/moment of the moveable vane. Either end could have greater surface
area than the other, but the end of the vane with greatest moment
(surface area * arm) will trail in the breeze.


I didn't think you could understand an explanation using those terms.


Why not?

Do you find the correct explanation difficult to comprehend?

  #37  
Old January 6th 06, 01:10 PM posted to rec.aviation.piloting
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Default Why is wind directon expressed as "FROM"?


"Larry Dighera" wrote in message
news

Why not?


Because based on the level of intelligence you've displayed in these forums
I thought it was likely beyond your ability to understand.



Do you find the correct explanation difficult to comprehend?


Nope. It was your ability to comprehend that was of concern.


  #38  
Old January 6th 06, 01:31 PM posted to rec.aviation.piloting
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Default Why is wind directon expressed as "FROM"?

On Fri, 06 Jan 2006 13:10:40 GMT, "Steven P. McNicoll"
wrote in
. net::


"Larry Dighera" wrote in message
news

Why not?


Because based on the level of intelligence you've displayed in these forums
I thought it was likely beyond your ability to understand.



Do you find the correct explanation difficult to comprehend?


Nope. It was your ability to comprehend that was of concern.


Your feeble attempt to cover your ignorance reeks of the same arrogant
transparent paltering of the current sitting President.

Have you ever considered running for office? :-)
  #39  
Old January 6th 06, 01:46 PM posted to rec.aviation.piloting
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Default Why is wind directon expressed as "FROM"?


"Larry Dighera" wrote in message
...

Your feeble attempt to cover your ignorance reeks of the same arrogant
transparent paltering of the current sitting President.


My ignorance? It was you that asked how one would design a weather vane
that worked the other way.


  #40  
Old January 6th 06, 02:21 PM posted to rec.aviation.piloting
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Default Why is wind directon expressed as "FROM"?

On Fri, 06 Jan 2006 13:46:34 GMT, "Steven P. McNicoll"
wrote in
. net::


"Larry Dighera" wrote in message
.. .

Your feeble attempt to cover your ignorance reeks of the same arrogant
transparent paltering of the current sitting President.


My ignorance? It was you that asked how one would design a weather vane
that worked the other way.


Actually, I asked Jose how *he* would design it.

And now you're implying, that all who ask questions are ignorant. What
of the professor who issues examination questions to his students?
Would you classify him as ignorant also?

Give it up, my friend. You're pathetic cover-up attempt is beneath
someone of your stature who has the lives of thousands of airline
travelers in his hands daily. It only serves to portray your psyche
as so fragile, that it is incapable of withstanding a single insult.

Rather, be a man; admit your lapse. It only proves you're human after
all. No one is infallible; certainly not you nor I.

 




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