[NSRCA-discussion] Snap

[george w. kennie]

Nat, Bob, Adam, Jay,
Great point Jay, and the rest of you guys are soooooooo right !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I've been trying to get this through to the powers that be for the last 3 years.
Nat, I particularly like that reference to the rate of rotation relative the normal aileron speed of rotation. That's a teriffic criterion and should probably be included in the book.(Yeah, I know, I know you guys, before you go gettin' all huffy, there are snaps done at different rates of rotation, go get yourself another piece of watermelon, it's hot today).
G.





  ----- Original Message ----- 
  From: Bob Richards 
  To: NSRCA Mailing List 
  Sent: Tuesday, July 04, 2006 2:04 AM
  Subject: Re: [NSRCA-discussion] Snap



  Nat Penton <natpenton at centurytel.net> wrote: 
    When the stall occurs lift only diminishes, it does not go to zero.
  Agreed, and therefore the CG of the plane can't travel a straight line. 

  The "break" will cause the the wing to go through its maximum lift AOA. That alone will cause the path to deviate. Once "stalled" the wing is still lifting, 3D flying proves that. 

  I recently flew a plane that was being video taped, and performed several snap rolls coming straight towards the camera. When the playback was slowed down, it was apparent the plane was NOT following a straight path. The plane obviously stalled, and autorotated, but the path was a spiral. 

  I would like for someone to produce a video of a snap roll, flown straight towards or away from the camera, where the CG stayed on a straight path.

  Bob R.



------------------------------------------------------------------------------


  _______________________________________________
  NSRCA-discussion mailing list
  NSRCA-discussion at lists.nsrca.org
  http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.nsrca.org/pipermail/nsrca-discussion/attachments/20060704/11cfbdad/attachment.html