<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">What I was alerting pilots to is that they can’t count on having a 5045gm airplane deemed acceptable. <div class=""><br class=""></div><div class=""> I don’t plan on bringing an airplane to the Nats weighing more than 5000gm. The tolerance is to allow for possible inconsistencies in the measuring equipment.</div><div class=""><br class=""></div><div class="">If the scales at the Nats say an airplane weighs 5055gm, it’s too heavy, regardless of what the scales at home said it was.</div><div class=""><br class=""></div><div class="">BTW, another little item to worry about: An increase in temperature causes the scales that are used at the Nats to measure a higher weight. That’s why John Fuqua and I have calibration weights. We can adjust the “tare’ and can tell what airplanes really weigh as the ambient temperature goes up..</div><div class=""><br class=""></div><div class="">Ron Van Putte</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jan 27, 2017, at 4:27 PM, Vogel, Peter via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org" class="">nsrca-discussion@lists.nsrca.org</a>> wrote</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" style="font-family: ArialMS; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><div id="x_divtagdefaultwrapper" dir="ltr" style="font-size: 12pt; font-family: Calibri, Arial, Helvetica, sans-serif;" class=""><div style="margin-top: 0px; margin-bottom: 0px;" class="">The "inconsistencies" are the inconsistencies between the pilots weighing equipment at home and the weighing equipment used at the contest. </div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px;" class="">So, if you count on your equipment being "dead accurate" and come with a 5050g airplane knowing it's 5050g, and the scales at the venue are off on the slightly heavy side, you will, in fact, be too heavy. This, in fact, happened to Joseph at the last worlds, he knew he was heavy with that set of batteries, and the scale caught him.</div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px;" class="">The LIMIT is 5000g, the tolerance is there in case your scales or the venue's scales are a little bit off. The limit is not 5050g.</div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class=""></div><div style="margin-top: 0px; margin-bottom: 0px;" class="">Peter+</div></div><hr tabindex="-1" style="display: inline-block; width: 1182.859375px;" class=""><div id="x_divRplyFwdMsg" dir="ltr" class=""><font face="Calibri, sans-serif" style="font-size: 11pt;" class=""><b class="">From:</b><span class="Apple-converted-space"> </span>NSRCA-discussion <<a href="mailto:nsrca-discussion-bounces@lists.nsrca.org" class="">nsrca-discussion-bounces@lists.nsrca.org</a>> on behalf of Ronald Van Putte via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org" class="">nsrca-discussion@lists.nsrca.org</a>><br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Friday, January 27, 2017 2:02:57 PM<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span>General pattern discussion<br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [NSRCA-discussion] Airplane Weight</font><div class=""> </div></div></div><font size="2" style="font-family: ArialMS; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-size: 10pt;" class=""><div class="PlainText">> On Jan 27, 2017, at 3:57 PM, Ronald Van Putte via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org" class="">nsrca-discussion@lists.nsrca.org</a>> wrote:<br class="">><span class="Apple-converted-space"> </span><br class="">> Something has been nagging me since the 2011 F3A World Championships. The decision was made, over the objections of the official weighers (John Fuqua and me), that airplanes would be allowed to weigh 1% more than the listed maximum weight of 5000gm, or 50gm.<br class="">><span class="Apple-converted-space"> </span><br class="">> The argument was that it “allowed for possible inconsistencies in measuring equipment”. We objected because we had purchased calibration weights and had them verified by the Precision Measurement Equipment Laboratory on Eglin AFB (at the cost of a sixpack of beer per set of calibration weights). That meant we knew exactly what the airplanes weighed.<br class="">><span class="Apple-converted-space"> </span><br class="">> Now to the current situation. Currently, AMA classes have a 1% weight tolerance, or 50gm. Suppose a contestant’s model actually weighs 5050gm, but the weighing equipment is in error by 25 grams. So the scales would measure the contestant’s airplane at 5075gm. Remember that the 15gm allowance is for "possible inconsistencies in measuring equipment”. The contestant’s airplane is “too heavy”.<br class="">><span class="Apple-converted-space"> </span><br class="">> Something to think about.<br class="">><span class="Apple-converted-space"> </span><br class="">> Ron Van Putte<br class="">> _______________________________________________<br class="">> NSRCA-discussion mailing list<br class="">><span class="Apple-converted-space"> </span><a href="mailto:NSRCA-discussion@lists.nsrca.org" class="">NSRCA-discussion@lists.nsrca.org</a><br class="">><span class="Apple-converted-space"> </span><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" class="">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br class=""><br class="">_______________________________________________<br class="">NSRCA-discussion mailing list<br class=""><a href="mailto:NSRCA-discussion@lists.nsrca.org" class="">NSRCA-discussion@lists.nsrca.org</a><br class=""><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" class="">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a></div></span></font><span style="font-family: ArialMS; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">_______________________________________________</span><br style="font-family: ArialMS; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: ArialMS; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">NSRCA-discussion mailing list</span><br style="font-family: ArialMS; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><a href="mailto:NSRCA-discussion@lists.nsrca.org" style="font-family: ArialMS; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">NSRCA-discussion@lists.nsrca.org</a><br style="font-family: ArialMS; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" style="font-family: ArialMS; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a></div></blockquote></div><br class=""></div></body></html>