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<p class=MsoNormal><span class=EmailStyle15><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>Thought
about it last night but decided it wouldn’t be sufficiently relevant, however
the swimmer may want to keep an eye on the drain.<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle15><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>Jim Hiller<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle15><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color=black
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;color:black'>-----Original
Message-----<br>
<b><span style='font-weight:bold'>From:</span></b>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org]<b><span style='font-weight:
bold'>On Behalf Of </span></b>Bob Richards<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, October 15, 2007
2:02 PM<br>
<b><span style='font-weight:bold'>To:</span></b> NSRCA Mailing List<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [NSRCA-discussion]
Weather Vane or Crab</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>Funny, I
don't think anyone has mentioned coriolis effect yet. :-)</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>Bob R.</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'><br>
<br>
<b><i><span style='font-weight:bold;font-style:italic'>Ron Lockhart
<ronlock@comcast.net></span></i></b> wrote:</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<div style='border:none;border-left:solid #1010FF 1.5pt;padding:0in 0in 0in 4.0pt'>
<p class=MsoNormal style='margin-right:.5in;mso-margin-top-alt:auto;mso-margin-bottom-alt:
auto;margin-left:40.2pt;border:none;mso-border-left-alt:solid #1010FF 1.5pt;
padding:0in;mso-padding-alt:0in 0in 0in 4.0pt'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>Assuming
earth is flat - well of course! Same as aircraft carrier. <VBG><br>
And in this case agreeing with Georgie, expect for a few mountains.<br>
<br>
Later, Ron<br>
<br>
----- Original Message ----- <br>
From: "george w. kennie" <GEOBET@GIS.NET><br>
To: "NSRCA Mailing List" <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><br>
Sent: Monday, October 15, 2007 9:46 AM<br>
Subject: Re: [NSRCA-discussion] Weather Vane or Crab<br>
<br>
<br>
> <br>
> Welllll,.......except for a few mountains...................<br>
> <br>
> <br>
> ----- Original Message ----- <br>
> From: "James Oddino" <JODDINO@SOCAL.RR.COM><br>
> To: "NSRCA Mailing List" <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><br>
> Sent: Sunday, October 14, 2007 8:50 PM<br>
> Subject: Re: [NSRCA-discussion] Weather Vane or Crab<br>
> <br>
> <br>
> > Ron, you are assuming the earth is flat. (vbg)<br>
> > <br>
> > Jim<br>
> > <br>
> > <br>
> > On Oct 13, 2007, at 9:42 AM, Ron Lockhart wrote:<br>
> > <br>
> >> Hi Ken,<br>
> >><br>
> >> I think my original phrasing is correct, but let me try restating
in<br>
> >> different words and using<br>
> >> some specific examples- This concept would be sooo much easier to
<br>
> >> describe<br>
> >> and understand<br>
> >> with the white board and beer, which I agree is looking better
all <br>
> >> the time<br>
> >> <VBG>)<br>
> >><br>
> >> Case 1. No Wind.<br>
> >> Pilot desires airplane to go to a point that is directly north,
or 360<br>
> >> degrees from present position.<br>
> >> There is no wind.<br>
> >> Durring flight airplane the pilot should fly the airplane on <br>
> >> heading 360<br>
> >> degrees. Track will be 360 degrees.<br>
> >> Airplane will get to desired point.<br>
> >><br>
> >> Case 2. There is wind from west across desired direction of <br>
> >> flight- Pilot<br>
> >> MISSES destination.<br>
> >> Pilot desires airplane to go a point that is directly north, or
360 <br>
> >> degrees<br>
> >> from present position.<br>
> >> There is wind from 270 degrees (from left of airplanes intended
track)<br>
> >> If pilot flys airplane on heading 360 degrees, it will not get to
<br>
> >> desired<br>
> >> point, it will get to a point to right (or east)<br>
> >> of the intended point. During flight airplane heading (direction <br>
> >> it is<br>
> >> pointed) will be 360 degrees. Track will not<br>
> >> be 360, it will be something to the right, such as 010 degrees.
No <br>
> >> weather<br>
> >> vane is present. The 010 track<br>
> >> is caused not by a weathervane effect, but by the body of air <br>
> >> moving from<br>
> >> west to east while airplane progresses<br>
> >> through it on north heading.<br>
> >><br>
> >> Case 3 Wind direction still across desired direction of flight- <br>
> >> Pilot FLYS<br>
> >> A CRAB ANGLE, and hits destination.<br>
> >> Stubborn pilot still wants to go to a point directly north of
present<br>
> >> position, despite wind from 270 degrees (west).<br>
> >> Durring flight airplane the pilot should choose to fly the
airplane on<br>
> >> heading 360 degrees, MINUS some number<br>
> >> of degrees. Lets say pilot guesses 10 degree correction, so pilot
<br>
> >> flys<br>
> >> airplane on heading 350 degrees.<br>
> >> This is a pilot choice to fly heading 350. The body of air moving
<br>
> >> from west<br>
> >> to east will not do it for the pilot.<br>
> >> During flight heading will be 350 degrees. Track will be 360
degrees<br>
> >> (ASSUMING that the pilots<br>
> >> "Guess" of a 10 degree correction was right.) Airplane
will get to <br>
> >> desired<br>
> >> point. During this flight, (and in<br>
> >> Case 1 and 2) a yaw string would be straight, no wind hits side
of <br>
> >> airplane.<br>
> >><br>
> >> I'll have a Coors lite.<br>
> >><br>
> >> Later, Ron<br>
> >><br>
> >> ----- Original Message -----<br>
> >> From: "Ken Thompson" <MRANDMRST@COMCAST.NET><br>
> >> To: "NSRCA Mailing List" <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><br>
> >> Sent: Saturday, October 13, 2007 9:37 AM<br>
> >> Subject: Re: [NSRCA-discussion] Weather Vane or Crab<br>
> >><br>
> >><br>
> >>> Hey Ron,<br>
> >>><br>
> >>> Would I be correct in assuming your quote in parenthesis
should read,<br>
> >>> "During that flight, airplane "intended"
heading and track will <br>
> >>> not be the<br>
> >>> same", or are you pointing out that a plane will
"somewhat" crab, <br>
> >>> on it's<br>
> >>> own, in a crosswind?<br>
> >>><br>
> >>> BTW: I like the white board and beer idea;-)<br>
> >>><br>
> >>> Ken<br>
> >>><br>
> >>> ----- Original Message -----<br>
> >>> From: "Ron Lockhart" <RONLOCK@COMCAST.NET><br>
> >>> To: "NSRCA Mailing List" <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><br>
> >>> Sent: Saturday, October 13, 2007 8:16 AM<br>
> >>> Subject: Re: [NSRCA-discussion] Weather Vane or Crab<br>
> >>><br>
> >>><br>
> >>>><br>
> >>>> If a pilot is flying to a specific point and points a
trimmed <br>
> >>>> airplane<br>
> >>>> directly at that point, and there is wind<br>
> >>>> somwhat perpendicular to the intended flight track over
the <br>
> >>>> ground the<br>
> >>>> airplane will not get to that point.<br>
> >>>> The airplane will get to a point down wind of the
intended point.<br>
> >> (During<br>
> >>>> that flight, airplane heading and<br>
> >>>> track will not be the same. There will be no wind hitting
side of<br>
> >> plane.<br>
> >>>> A<br>
> >>>> yaw string on nose will be<br>
> >>>> straight down fuse) I suppose we just lost a few folks
here....<br>
> >>>> (sigh)<br>
> >>><br>
> >>> All this would be a bunch easier with a white board and beer.
<VBG><br>
> >>>><br>
> >>>> Later, Ron Lockhart<br>
> >>>><br>
> >>>><br>
> >>>> ----- Original Message -----<br>
> >>>> From: "Ken Thompson" <MRANDMRST@COMCAST.NET><br>
> >>>> To: "NSRCA Mailing List" <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><br>
> >>>> Sent: Saturday, October 13, 2007 12:48 AM<br>
> >>>> Subject: Re: [NSRCA-discussion] Weather Vane<br>
> >>>><br>
> >>>><br>
> >>>>> Jim and all,<br>
> >>>>><br>
> >>>>> Most of us realize the plane will do as you and
others have <br>
> >>>>> described,<br>
> >> my<br>
> >>>>> only point in questioning this is...is it called
"weathervaning" <br>
> >>>>> while<br>
> >>>> it's<br>
> >>>>> in the air, or is it called "wind induced yaw or
crab"?<br>
> >>>>><br>
> >>>>> Best to you in your recovery.<br>
> >>>>><br>
> >>>>> Ken<br>
> >>>>><br>
> >>>>> ----- Original Message -----<br>
> >>>>> From: "James Oddino" <JODDINO@SOCAL.RR.COM><br>
> >>>>> To: <ALBERJI@CHARTER.NET>; "NSRCA Mailing
List"<br>
> >>>>> <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><br>
> >>>>> Sent: Friday, October 12, 2007 7:14 PM<br>
> >>>>> Subject: Re: [NSRCA-discussion] Weather Vane<br>
> >>>>><br>
> >>>>><br>
> >>>>> If it does, this is my<br>
> >>>>>> definition of weathervaning.<br>
> >>>>>><br>
> >>>>>> I'm recovering from an emergency appendectomy so
I'm depending <br>
> >>>>>> on all<br>
> >>>>>> you other guys to go try a cross wind stall turn
with no rudder<br>
> >>>>>> command tomorrow and report on your results.<br>
> >>>>>><br>
> >>>>>> Best Regards, Jim O<br>
> >>>>><br>
> >>>>><br>
> >>>>><br>
> >>>>> _______________________________________________<br>
> >>>>> NSRCA-discussion mailing list<br>
> >>>>> NSRCA-discussion@lists.nsrca.org<br>
> >>>>>
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<br>
> >>>>><br>
> >>>><br>
> >>>> _______________________________________________<br>
> >>>> NSRCA-discussion mailing list<br>
> >>>> NSRCA-discussion@lists.nsrca.org<br>
> >>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<br>
> >>><br>
> >>> _______________________________________________<br>
> >>> NSRCA-discussion mailing list<br>
> >>> NSRCA-discussion@lists.nsrca.org<br>
> >>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<br>
> >><br>
> >> _______________________________________________<br>
> >> NSRCA-discussion mailing list<br>
> >> NSRCA-discussion@lists.nsrca.org<br>
> >> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<br>
> > <br>
> > _______________________________________________<br>
> > NSRCA-discussion mailing list<br>
> > NSRCA-discussion@lists.nsrca.org<br>
> > http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<br>
> ><br>
> _______________________________________________<br>
> NSRCA-discussion mailing list<br>
> NSRCA-discussion@lists.nsrca.org<br>
> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<br>
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