snap displacement

Earl Haury ehaury at houston.rr.com
Thu Dec 30 19:12:03 AKST 2004


John

The three points come from 15 degrees in each axis, i.e. significant deviation from track in the pitch axis - yaw axis - and roll occurring before the break / stall. Essentially the aircraft begins a barrel roll before snapping. Remember - the break is an attitude change while closely maintaining track, not a significant track deviation that eventually results in a break.

Earl
  ----- Original Message ----- 
  From: John Petterson 
  To: discussion at nsrca.org 
  Sent: Thursday, December 30, 2004 9:32 PM
  Subject: RE: snap displacement


  Earl,



  How do you get a 3 point penalty for a 10 to 15 degree track and roll change - the rules only count 2 points off for that if both the pitch and roll occurred.



  John



  -----Original Message-----
  From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org] On Behalf Of Earl Haury
  Sent: Wednesday, December 29, 2004 11:44 AM
  To: Discussion List, NSRCA
  Subject: Fw: snap displacement





  ----- Original Message ----- 

  From: Earl Haury 

  To: tony at radiosouthrc.com 

  Sent: Wednesday, December 29, 2004 10:22 AM

  Subject: Re: snap displacement



  What I see a whole lot more of are snaps that are pitched / yawed slowly so that the track changes 10 or 15 degrees (along with similar roll) before the stall occurs - hmm - down to a seven or so, then the snap rotation is stopped an equal amount early so that the airplane can be flown to the finish. These things are easily a 4 or less! Unfortunately, some of the perpetrators of these abominations are the first to criticize those who have done the work to figure it out.





  Earl
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