When I attended the 1981 NATS in Seguin (New Braunfels for the soaring events), TX the check in for modified standard class required a measurement. The AMA official had a board with two dowels set vertically 100" apart. I did not measure these myself, but I assumed they were accurate. We were instructed to assemble our sailplane and then pass the wing through the dowels with the aircraft inverted. I knew at the time that my aircraft would pass since I had measured it upright for projected span. The method used at that NATS would allow for even more span since one could allow for slop in the carry thorough system. But, this is really splitting the proverbial "C" hairs. If you went out and practiced for a few more days one would more than compensate for the extra fractions of an inch wing span gained.
Mark ----- Original Message ----- From: "Chuck Anderson" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Tuesday, February 15, 2005 11:07 AM Subject: Re: [RCSE] Dihedral affects upon wing span and area > At 10:21 AM 2/15/2005, you wrote: >>----- Original Message ----- From: "Tim Engel" <[EMAIL PROTECTED]> >>To: <[email protected]> >>Sent: Friday, February 11, 2005 2:24 PM >>Subject: [RCSE] Dihedral affects upon wing span and area > >>>For the purpose of official class rules, when is a 2-meter a 2-meter, >>>or a >>>Standard class ship 100 inches? And is the maximum allowable wing area >>>for >>>a ship like a Sagitta XC (which really toes the line on the max area >>>limit) >>>calculated in the flat or from the projected span after dihedral is >>>added? > > It has always been projected span. At the 1980 Nats 2-meter pilots > meeting, one of the contestants ask the CD if the wing span had to be > less that 2 meter at rest or in flight. When the CD said the span was > measured at rest, the contestant brought out a standard class model that > had the outboard panels attached with hinge tape. At rest, the outboard > panels hung down and the span was less than 2 meters. In flight, the air > loads were supposed to hold the wings extended for an in flight wing span > of 100 inches. The whole thing was a joke on the CD and the model was > just a non flyable mockup. The CD was Gordon Pearson, a notorious > practical joker. Wish I could remember the name of the modeler who got > even with Gordon. > > Chuck Anderson > > RCSE-List facilities provided by Model Airplane News. Send "subscribe" > and "unsubscribe" requests to [EMAIL PROTECTED] Please note > that subscribe and unsubscribe messages must be sent in text only format > with MIME turned off. Email sent from web based email such as Hotmail and > AOL are generally NOT in text format > RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
