[NSRCA-discussion] Bowtie

[Derek Koopowitz]

The illustrations in the article were for illustrative purposes only... the
intent of the article was to point out that there is no way the Bow Tie
could be flown in a square and have all the radii the same.

On Tue, Jul 5, 2016 at 9:14 AM, Atwood, Mark via NSRCA-discussion <
nsrca-discussion at lists.nsrca.org> wrote:

> This is accurate, though it might be less confusing (when comparing to an
> aresti if you do the same drawing but with the circles smaller, within the
> original square drawing.  It will demonstrate the same thing (show that the
> resulting shape is more rectangular) but without leaving the confines of
> the original drawing.
>
>
> *MARK **ATWOOD*
> o.  (440) 229-2502
> c.  (216) 316-2489
> e.  atwoodm at paragon-inc.com
>
> *Paragon Consulting, Inc.*
> 5900 Landerbrook Drive, Suite 205, Cleveland Ohio, 44124
> www.paragon-inc.com
>
> <http://www.paragon-inc.com/>
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>
> On Jul 5, 2016, at 12:10 PM, Charlie Barrera via NSRCA-discussion <
> nsrca-discussion at lists.nsrca.org> wrote:
>
> Yep, the diagram in the KFactor was a little misleading. I think this is
> the correct geometry.
>
> …Charlie
>
> On Jul 5, 2016, at 9:25 AM, Vicente Bortone via NSRCA-discussion <
> nsrca-discussion at lists.nsrca.org> wrote:
>
> I think this will make it more clear.
>
> <image.png>
> On Saturday, July 2, 2016, Phil Spelt via NSRCA-discussion <
> nsrca-discussion at lists.nsrca.org> wrote:
>
>> Yes, Stuart, my maneuvers all look much better in PaintShop or PowerPoint
>> than they do in R/C airplane!
>>
>>
>>
>>
>>
>> *Phil Spelt, KCRC Emeritus AMA 1294, Scientific Leader Member
>> SPA L-18, Board Member Oliver Springs, TN  (865) 435-1476v  (865) 604-0541c
>> *
>>
>> ------------------------------
>>
>> Yup try to draw it with radii.  Only if your corners are points (pretty
>> tough on the plane) will the maneuver be square.
>>
>> I actually used Corel Draw where I could be sure all radii were equal to
>> see how it should look.  Now if I could only fly it that way :)
>>
>> Stuart C.
>>
>> On 7/1/2016 1:49 PM, cahochhalter via NSRCA-discussion wrote:
>>
>> The radius locations of the bowtie create a rectangle.
>>
>> See attached drawings.
>>
>> Drawing courtesy of Mark Hunt
>>
>>
>>
>> Sent from my Verizon, Samsung Galaxy smartphone
>>
>>
>> -------- Original message --------
>> From: Verne Koester via NSRCA-discussion
>> <nsrca-discussion at lists.nsrca.org>
>> Date: 7/1/16 12:35 PM (GMT-06:00)
>> To: NSRCA <nsrca-discussion at lists.nsrca.org>
>> Subject: [NSRCA-discussion] Bowtie
>>
>> I just read the Judges Chair in the latest K-Factor regarding the Bow Tie
>> in Masters. Their opinion is that the overall shape of the maneuver should
>> form a rectangle rather than a square. I can’t see how that’s geometrically
>> possible. The center portion of the maneuver has two opposing 45 degree
>> lines. Assuming we want the baseline and top line height the same and we
>> want the maneuver centered, the 45 degree lines mandate an overall square
>> shape. The only way to make a rectangle out of it is to either fly an angle
>> of less than 45 degrees through the center or add short straight lines
>> before and after the 45’s going into the radiuses into the verticals. The
>> illustration in the K-Factor showing how the Bow Tie should be shaped
>> illustrates this because the center angle lines in their rectangle drawing
>> are clearly less than 45 degrees. The Masters aresti shows the correct
>> overall shape and it’s square.
>>
>>
>> Verne Koester
>>
>>
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>>
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>>
>
> --
> Vicente "Vince" Bortone
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