Pt roll centering

[Troy Newman]

Ed,

 the rule book (AMA that is) defines the centers on all of these rolls, and has defined them for years like this. Going back to around 2000 when this argument started coming up with vigor. You can argue till the cows come home now but the rules are the way that is correct which ever way that is....and they are below ( just some of them)

2002-2004 Comp Regs ( a free book by the way from AMA) and its online too.

page 87

triangle, 1/2's on 45's and 2/4pt roll on top...

"...Center of the 2 of 4 point roll is middle of knife edge hesitation."

page 84

Rev cuban 8 from top with 2/4pt rolls
"......Center of two(2) of four(4) point roll is middle of knife-edge hesitation."

page 80

4 of 8 pt roll from inverted
"....Center is middle of knife edge hesitation."

page 80

4pt roll

"....Center is middle of inverted flight."


The rules will help you fly better...not to mention you will not be downgrading the pilot that is doing it right as opposed to what you think is right.


TN

  ----- Original Message ----- 
  From: Ed Deaver 
  To: NSRCA Disscussion 
  Sent: Monday, August 09, 2004 6:40 PM
  Subject: Pt roll centering


  Hey everyone.  Having flown the Masters sequence for 2.5 years, I learned something new at the Nats.  Thought it might be a good idea to cover again(or I'm behind the thought curve)

  Correct me if incorrect also.

  On point rolls, the centers are determined by where the first point roll begins and where the final pt roll ends.  So, on a 2 of 4 pt roll, the center of the roll is actually the middle of the knife edge.  The first point begins to knife edge, and the last point roll ends after knife edge, making the center of the manuever the middle of knife edge, not the 2nd point roll(as I had thought)

  So the center of a 4 pt roll is the middle of the Inverted portion(again not between the 2nd and 3rd points)  With the same theory, the center of the 4 of 8 pt roll is the center of knife edge.

  Initially, it seems strange to me as I used to think the transition to another point was the center, but this is incorrect.  Once thought of in a different perspective this make total sense.

  Ed
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