<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="">That’s right! The Earth is an oblate spheroid. Gotta factor that in.<div class=""><br class=""></div><div class="">Ron</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jan 27, 2017, at 4:34 PM, Keith Hoard 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 class="WordSection1" style="page: WordSection1; 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;"><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif;" class="">The rules also seem to neglect that gravity is not truly consistent at every place on the planet. Perhaps that needs to be addressed in an upcoming rules cycle?<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif;" class="">https: // <a href="http://en.wikipedia.org/" style="color: purple; text-decoration: underline;" class="">en.wikipedia.org</a> /wiki /Gravity_of_Earth<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></span></div><div class=""><div style="border-style: solid none none; border-top-color: rgb(225, 225, 225); border-top-width: 1pt; padding: 3pt 0in 0in;" class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><b class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif;" class="">From:</span></b><span style="font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class="Apple-converted-space"> </span>NSRCA-discussion [<a href="mailto:nsrca-discussion-bounces@lists.nsrca.org" style="color: purple; text-decoration: underline;" class="">mailto:nsrca-discussion-bounces@lists.nsrca.org</a>]<span class="Apple-converted-space"> </span><b class="">On Behalf Of<span class="Apple-converted-space"> </span></b>Vogel, Peter via NSRCA-discussion<br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Friday, January 27, 2017 4:27 PM<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span>Ronald Van Putte <<a href="mailto:vanputter@gmail.com" style="color: purple; text-decoration: underline;" class="">vanputter@gmail.com</a>>; General pattern discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org" style="color: purple; text-decoration: underline;" class="">nsrca-discussion@lists.nsrca.org</a>><br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [NSRCA-discussion] Airplane Weight<o:p class=""></o:p></span></div></div></div><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><o:p class=""> </o:p></div><div class=""><div id="x_divtagdefaultwrapper" class=""><p class=""><span style="font-family: Calibri, sans-serif;" class="">The "inconsistencies" are the inconsistencies between the pilots weighing equipment at home and the weighing equipment used at the contest. <o:p class=""></o:p></span></p><p class=""><span style="font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></span></p><p class=""><span style="font-family: Calibri, sans-serif;" 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.<o:p class=""></o:p></span></p><p class=""><span style="font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></span></p><p class=""><span style="font-family: Calibri, sans-serif;" 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.<o:p class=""></o:p></span></p><p class=""><span style="font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></span></p><p class=""><span style="font-family: Calibri, sans-serif;" class="">Peter+<o:p class=""></o:p></span></p></div><div class="MsoNormal" align="center" style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif; text-align: center;"><hr size="2" width="98%" align="center" class=""></div><div id="x_divRplyFwdMsg" class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><b class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif;" class="">From:</span></b><span style="font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class="Apple-converted-space"> </span>NSRCA-discussion <<a href="mailto:nsrca-discussion-bounces@lists.nsrca.org" style="color: purple; text-decoration: underline;" 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" style="color: purple; text-decoration: underline;" 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</span><o:p class=""></o:p></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""> <o:p class=""></o:p></div></div></div></div><div class=""><div style="margin: 0in 0in 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 10pt;" class="">Typo in second paragraph. Should have been 5000gm, not 50000gm. Sorry.<br class=""><br class="">Ron<span class="Apple-converted-space"> </span><br class=""><br class="">> On Jan 27, 2017, at 3:57 PM, Ronald Van Putte via NSRCA-discussion <<a href="mailto:nsrca-discussion@lists.nsrca.org" style="color: purple; text-decoration: underline;" 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 50000gm, 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 15 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" style="color: purple; text-decoration: underline;" 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" style="color: purple; text-decoration: underline;" 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" style="color: purple; text-decoration: underline;" class="">NSRCA-discussion@lists.nsrca.org</a><br class=""><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" style="color: purple; text-decoration: underline;" class="">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><o:p class=""></o:p></span></div></div></div><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="color: purple; text-decoration: underline; 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="color: purple; text-decoration: underline; 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>