[NSRCA-discussion] Correct Geometry on N

Jerry Stebbins JAStebbins at worldnet.att.net
Tue Jul 8 13:06:10 AKDT 2008


Amen.
Jerry
----- Original Message ----- 
From: <mjfrederick at cox.net>
To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>; 
<bob at toprudder.com>
Sent: Tuesday, July 08, 2008 12:59 PM
Subject: Re: [NSRCA-discussion] Correct Geometry on N


> I'm glad someone finally pointed that out... Ken is exactly correct in the 
> point that the only way to see the square would be to extend the lines 
> until they intersect. I think if a judge is concentrating too much on that 
> aspect, they're going to miss a lot more. Focus on the elements: are the 
> verticals equal length w/ same entry/exit altitudes, are the radii all 
> equal, are the diagonals 45 degrees w/ equal lengths, are the rolls 
> centered on the 45's? Answering yes to all these questions would result in 
> being able to superimpose a square loop over the hourglass, but I don't 
> think that should be a litmus test as to what score will be given.
>
> Matt
>
> ---- Bob Richards <bob at toprudder.com> wrote:
>> Ken,
>>
>> There is no requirement for the manuever to be square. Vertical lines 
>> must be vertical, 45s must be 45s, all radii must be constant and equal. 
>> The only way to get a square out of this is to extend the vertical and 
>> diagonal lines until they intersect, which is outside the boundary of the 
>> manuever. If someone flies low and with large radii, this could actually 
>> put the lower intersections below ground level. Do we downgrade the 
>> mauever then because part of it was out of the box? :-)
>>
>> The height (from bottom of lower loop segments to the top of the upper 
>> loop segments) will always be less than the width (vertical line to 
>> vertical line). Looking for the manuever to be square (or rectangle, for 
>> that matter) should not be a judging criteria, IMHO.
>>
>> Bob R
>>
>> --- On Tue, 7/8/08, Ken Velez <kvelez at comcast.net> wrote:
>>
>> Mark,
>>
>>  I think this is consider a square althoug the cad program shows a 
>> smaller
>> leg at the ends due to the rdii but the foot print is a square. I know 
>> you
>> said the fundamental shape is a square  I think calling it a rectangle 
>> will
>> create confusion. As a Judge Iwill be looking for a Square shape>
>>
>> Ken
>>
>>
>
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