[NSRCA-discussion] SNAP ROLLS

[Ed Alt]

100% agree.  I can't even bring myself to respond to some of the other things being said re. how to tell if a snap is a snap and how to judge a real one.  The fewer snaps in the schedule, the better, because there seems to be too much confusion over what a real snap is.  BTW, a good snap actually doesn't involve all that many G's.  One you get the wing stalled and have a true autorotation going, things settle down alot in the G department.  Bent wing tubes etc are generally signs that a snap never actually happened or at the very least, it developed too slowly and allowed excessive G's to be developed by the unstalled wing before it did finally stall (too little throw, too slow on the elevator etc).

Ed


----- Original Message ----- 
  From: Doug Cronkhite 
  To: 'NSRCA Mailing List' 
  Sent: Tuesday, July 04, 2006 11:27 AM
  Subject: Re: [NSRCA-discussion] SNAP ROLLS


  The snap roll is quite possibly the worst maneuver for pattern aircraft because they're simply not designed to do them. The rules are also against you getting a good snap, as a downgrade for displacement of line is just not realistic. There is going to be displacement during the act of getting the wing stalled.

   

  IMO, the only things that should be judged on a snap are:

   

  1)       Is the wing stalled - IE Pitch break to initiate?

  2)       Is there complete auto-rotation?

  3)       Heading at the completion of the snap

  4)       360 degree rotation.

   

  Anything else SHOULD fall under the same criteria as spins where once the aircraft is stalled the pilot is unable to control how the line moves.

   

  -Doug

   



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