<div>George,</div> <div>Kinda like when the judges tell us to slow down, we're flying too fast !</div> <div> </div> <div>tommy s<BR><BR><B><I>"george w. kennie" <geobet@gis.net></I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"><BR>John,<BR>I think I have a problem with #1.<BR>I think the pilot's responsibility is to perform the maneuver correctly.<BR>The Judges responsibility is to know what a correctly performed maneuver <BR>looks like and then to score it accurately.<BR>The pilot has no responsibility to satisfy a judge who may be inept.<BR>G.<BR><BR><BR><BR>----- Original Message ----- <BR>From: "John Ferrell" <JOHNFERRELL@EARTHLINK.NET><BR>To: "NSRCA Mailing List" <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><BR>Sent: Tuesday, July 04, 2006 10:20 AM<BR>Subject: Re: [NSRCA-discussion] Snap<BR><BR><BR>> >From my point of view:<BR>> 1. It remains the pilot's responsibility to satisfy the
judges.<BR>> 2. What is and is not a snap is defined by our rules.<BR>> 3. All airplanes do not snap alike, see #1.<BR>> 4. "Burying the Snap" by over controlling will eventually put you in a<BR>> situation that will score poorly.<BR>><BR>> IMHO:<BR>> Those of us with a chronic problem of over controlling usually wind up<BR>> selecting control travel limits based on what it takes to snap and spin.<BR>> Those with the gift of fine motor control can get away with more sensitive<BR>> controls.<BR>><BR>> John Ferrell W8CCW<BR>> "My Competition is not my enemy"<BR>> http://DixieNC.US<BR>><BR>> ----- Original Message ----- <BR>> From: "Adam Glatt" <ADAM.G@SASKTEL.NET><BR>> To: "NSRCA Mailing List" <NSRCA-DISCUSSION@LISTS.NSRCA.ORG><BR>> Sent: Tuesday, July 04, 2006 2:26 AM<BR>> Subject: Re: [NSRCA-discussion] Snap<BR>><BR>><BR>>> Bob, my personal experience tells me that such a snap roll is only<BR>>>
possible with little to no elevator, and decent amounts of aileron and<BR>>> rudder. This shouldn't be a great surprise to anyone who has thought<BR>>> about the control inputs we prescribe to perform a snap. Elevator input<BR>>> causes the plane to pitch, and pitch causes the plane to displace from<BR>>> its former path, whether the wing is stalled or not. Rudder causes the<BR>>> plane to yaw, but yaw is much less effective at causing the plane to<BR>>> displace from its former path. Rudder during a roll forces the tail and<BR>>> nose to rotate around the flight path. What two things can a judge or<BR>>> pilot look for during a roll to determine if it is a standard roll,<BR>>> barrell roll, or a snap roll? The first is the tail being at an angle<BR>>> that isn't the flight path and then not rotating around the flight<BR>>> path. The second is the CofG staying on a rather straight
path.<BR>>><BR>>> A stalled wing (due to elevator application) produces a ton of lift.<BR>>> That lift is going to drastically move the CofG off the previous flight<BR>>> path. This is why I advocate and practice very little elevator<BR>>> deflection during a snap. Meeting the rules requires strong elevator<BR>>> application to begin the snap, and it also _requires_ releasing most of<BR>>> that elevator during the rotation.<BR>>><BR>>> Of course, this is all just talk and typing. Most important is to<BR>>> ensure your snaps don't tempt judges to whip out the big zero. And that<BR>>> you can hit wings-level every time. Jeez, I better keep practicing...<BR>>><BR>>> -Adam<BR>>><BR>>> Bob Richards wrote:<BR>>>><BR>>>> */Nat Penton <NATPENTON@CENTURYTEL.NET>/* wrote:<BR>>>><BR>>>> When the stall occurs lift only diminishes, it does not go to
zero.<BR>>>><BR>>>> Agreed, and therefore the CG of the plane can't travel a straight line.<BR>>>><BR>>>> The "break" will cause the the wing to go through its maximum lift<BR>>>> AOA. That alone will cause the path to deviate. Once "stalled" the<BR>>>> wing is still lifting, 3D flying proves that.<BR>>>><BR>>>> I recently flew a plane that was being video taped, and performed<BR>>>> several snap rolls coming straight towards the camera. When the<BR>>>> playback was slowed down, it was apparent the plane was NOT following<BR>>>> a straight path. The plane obviously stalled, and autorotated, but the<BR>>>> path was a spiral.<BR>>>><BR>>>> I would like for someone to produce a video of a snap roll, flown<BR>>>> straight towards or away from the camera, where the CG stayed on a<BR>>>> straight path.<BR>>>><BR>>>> Bob
R.<BR>>>><BR>>>> ------------------------------------------------------------------------<BR>>>><BR>>>> _______________________________________________<BR>>>> NSRCA-discussion mailing list<BR>>>> NSRCA-discussion@lists.nsrca.org<BR>>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR>>>><BR>>> _______________________________________________<BR>>> NSRCA-discussion mailing list<BR>>> NSRCA-discussion@lists.nsrca.org<BR>>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR>>><BR>><BR>><BR>> _______________________________________________<BR>> NSRCA-discussion mailing list<BR>> NSRCA-discussion@lists.nsrca.org<BR>> http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR>> <BR><BR>_______________________________________________<BR>NSRCA-discussion mailing
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