{"id":1682,"date":"2004-07-15T12:00:07","date_gmt":"2004-07-15T20:00:07","guid":{"rendered":"http:\/\/lee.org\/blog\/archives\/2004\/07\/15\/el-wire-maat-el-wire-redux\/"},"modified":"2009-07-04T16:55:42","modified_gmt":"2009-07-04T23:55:42","slug":"el-wire-maat-el-wire-redux","status":"publish","type":"post","link":"https:\/\/www.lee.org\/blog\/2004\/07\/15\/el-wire-maat-el-wire-redux\/","title":{"rendered":"EL Wire, Ma&#8217;at, EL Wire Redux"},"content":{"rendered":"<h3>EL Wire<\/h3>\n<p>(eeearly morning edition)<\/p>\n<p>H<a href=\"http:\/\/lee.org\/blog\/wp-content\/uploads\/2004\/07\/Maat.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/lee.org\/blog\/wp-content\/uploads\/2004\/07\/maat.thumbnail.jpg\" alt=\"maat.jpg\" width=\"200\" height=\"145\" align=\"right\" \/><\/a>mm. I need a lot of electroluminescent wire for the plane! I&#8217;m starting the measurements   and it looks like it&#8217;s going to take 11&#8243; per loop\/feather. I&#8217;m planning on 48   loops on the bottom of the plane, plus some outlining&#8230;. that&#8217;s at least 44   feet of wire just for the bottom! Hmm. What does 44 feet of wire weigh???<\/p>\n<p>I have a sample coolneon kit with about 77 inches of the stuff. It weighs 1   oz +- 5%. So that&#8217;s 7 oz of wire for the underside&#8230; another 4 for the topside,   1.4 oz for a 9v battery. Hmmm   13 oz of payload on a 28 oz plane.   Maybe not.   I&#8217;ll work it out.<\/p>\n<p>PPG gave me the really good idea to look for Egyptian figurines as a model.   (yes, I saw her. I think our friendship will survive) I found Ma&#8217;at, the   Egyptian goddess and embodiment of truth. You&#8217;ll likely be seeing an aerial   Ma&#8217;at over the skies of Black Rock City in a month!<\/p>\n<p>That&#8217;s Ma&#8217;at on the left and Isis on the right in the picture.<\/p>\n<h3>EL Wire redux<\/h3>\n<p>I took the Zagi out to do some sample flying<\/p>\n<p>Zagi 400, 26 oz (including motor &amp; battery but not payload) 292 sq in wing   surface, Mega 16\/15\/4 motor, 6&#215;4 prop, Zagi 8 cell 1700 Mah battery,  <strong>+   10.5 oz of my grampa&#8217;s old tools<\/strong><\/p>\n<p>It flies just great&#8230; It flies a little erratic (probably because the weight   is on the top of the wing, pushing the center of gravity up) and it&#8217;s a little   harder to turn (likely inertia) but the big thing I was worried about was that   it would sink like a rock and that isn&#8217;t an issue, and I needed to lay hard on   the throttle (mostly due to me flying in 20mph slightly gusty winds just before   a storm (I want to make this project happen NOW!)), and I had to jump a fence to   fetch the plane once (When I took off, I lost a 1 oz weight that I had placed   mid-wing, that started a leftward spiral that, in order to save from a really   hard crash, I ended up hitting a fence and the Zagi tumbled over the fence&#8230;   hence the climbing. I&#8217;m confident that I can put a 13 oz. lighting payload on a   plane<\/p>\n<p>Static thrust motor output: NiMH1: 16 oz,  Nicad1: 16oz,  LiPoly:  <strong>23 oz<\/strong>!<\/p>\n<p>That&#8217;s a 36oz plane with 16-23 oz of thrust&#8230; very respectable for an   electric. I had previously gotten used to getting 9oz of static thrust out of   brushed speed 400s.  Represented as fractions:<\/p>\n<table style=\"border-collapse: collapse\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" width=\"75%\" bordercolor=\"#111111\">\n<tbody>\n<tr>\n<td width=\"19%\">Plane<\/td>\n<td width=\"17%\">thrust (oz)<\/td>\n<td width=\"23%\">flying weight (oz)<\/td>\n<td width=\"75%\">thrust\/weight ratio<\/td>\n<\/tr>\n<tr>\n<td width=\"19%\">Old Zagi (brushed)<\/td>\n<td width=\"17%\">9<\/td>\n<td width=\"23%\">26<\/td>\n<td width=\"75%\">.35<\/td>\n<\/tr>\n<tr>\n<td width=\"19%\">New Zagi (brushless)<\/td>\n<td width=\"17%\">23<\/td>\n<td width=\"23%\">26<\/td>\n<td width=\"75%\">.88<\/td>\n<\/tr>\n<tr>\n<td width=\"19%\">New Zagi with payload<\/td>\n<td width=\"17%\">23<\/td>\n<td width=\"23%\">36<\/td>\n<td width=\"75%\">.64 (way better than the old Zagi)<\/td>\n<\/tr>\n<tr>\n<td width=\"19%\">New Zagi with payload (old batts)<\/td>\n<td width=\"17%\">16<\/td>\n<td width=\"23%\">36<\/td>\n<td width=\"75%\">.44<\/td>\n<\/tr>\n<tr>\n<td width=\"19%\">Projeti<\/td>\n<td width=\"17%\">23<\/td>\n<td width=\"23%\">20<\/td>\n<td width=\"75%\">1.15 (&gt;1, vertical performance)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>After crunching the numbers, I am resolved: just do it.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>EL Wire (eeearly morning edition) Hmm. I need a lot of electroluminescent wire for the plane! I&#8217;m starting the measurements and it looks like it&#8217;s going to take 11&#8243; per loop\/feather. I&#8217;m planning on 48 loops on the bottom of the plane, plus some outlining&#8230;. that&#8217;s at least 44 feet of wire just for the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-1682","post","type-post","status-publish","format-standard","hentry","category-rc"],"_links":{"self":[{"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/posts\/1682","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/comments?post=1682"}],"version-history":[{"count":0,"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/posts\/1682\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/media?parent=1682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/categories?post=1682"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lee.org\/blog\/wp-json\/wp\/v2\/tags?post=1682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}