[NSRCA-discussion] Correct Geometry on N

[Ken Velez]

Bob,

 I'm talking about the foot print of the maneuver, like in the Double Immelmann. The height of the maneuver should be the same as the straight lines before the loops, not sure if the rule book precisely calls for that to be square shape either but we still look for that. Can you tell that the shape of the horizontal length of given maneuver is 5 feet longer than the vertical? I know I can't. 20 + feet difference it starts to look like a rectangle that's all.

Ken
  ----- Original Message ----- 
  From: Bob Richards 
  To: General pattern discussion 
  Sent: Tuesday, July 08, 2008 1:29 PM
  Subject: Re: [NSRCA-discussion] Correct Geometry on N


        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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