{"id":194660,"date":"2008-08-31T05:17:00","date_gmt":"2008-08-31T10:17:00","guid":{"rendered":"https:\/\/www.panix.com\/~msaroff\/40years\/2008\/08\/31\/neat-tech-coanda-effect-aircraft\/"},"modified":"2008-08-31T05:17:00","modified_gmt":"2008-08-31T10:17:00","slug":"neat-tech-coanda-effect-aircraft","status":"publish","type":"post","link":"https:\/\/www.panix.com\/~msaroff\/40years\/2008\/08\/31\/neat-tech-coanda-effect-aircraft\/","title":{"rendered":"Neat Tech: Coanda Effect Aircraft"},"content":{"rendered":"<p>In the UK, a company called GFS (which stands for &#8212; I kid you not &#8212; Geoff&#8217;s Flying Saucer), has been flying a <a href=\"http:\/\/www.flightglobal.com\/articles\/2008\/08\/27\/315195\/first-autonomous-coanda-effect-uav-flight-by-december.html\">small UAV<\/a>, and expects it to be able to fly autonomously by years end.<\/p>\n<p>The technology is pretty neat, it uses the <a href=\"http:\/\/en.wikipedia.org\/wiki\/Coanda_effect\">Coand\u0103 effect<\/a>, the tendency of a fluid to follow a surface, to generate lift.<br \/><img decoding=\"async\" src=\"http:\/\/pic60.picturetrail.com\/VOL1689\/10590113\/20372800\/332213928.jpg\" \/><\/p>\n<p>The UAV is small, Max TOW is 18.5 kilos, but it does show one advantage over a conventional lift propeller, greater volumetric efficiency, because there is no big honking hole down the center of mass for the air.<\/p>\n<p>Additionally, by tailoring the vanes on the body, you can eliminate torque issues, meaning that you have a single prop, rather than two counter rotating, which is smaller and lighter.<\/p>\n<p>Additionally, they are <a href=\"http:\/\/www.flightglobal.com\/articles\/2007\/05\/04\/213657\/gfs-reveals-plans-for-family-of-coanda-effect-aircraft.html\">looking at other applications<\/a>, starting with a small manned vehicle:<br \/><img decoding=\"async\" src=\"http:\/\/pic60.picturetrail.com\/VOL1689\/10590113\/20372800\/332213917.jpg\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the UK, a company called GFS (which stands for &#8212; I kid you not &#8212; Geoff&#8217;s Flying Saucer), has been flying a small UAV, and expects it to be able to fly autonomously by years end. The technology is pretty neat, it uses the Coand\u0103 effect, the tendency of a fluid to follow a &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1007,1226,1025],"tags":[],"class_list":["post-194660","post","type-post","status-publish","format-standard","hentry","category-aviation","category-helicopters","category-technology"],"_links":{"self":[{"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/posts\/194660"}],"collection":[{"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/comments?post=194660"}],"version-history":[{"count":0,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/posts\/194660\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/media?parent=194660"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/categories?post=194660"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/tags?post=194660"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}