{"id":188444,"date":"2010-09-25T21:14:00","date_gmt":"2010-09-26T02:14:00","guid":{"rendered":"https:\/\/www.panix.com\/~msaroff\/40years\/2010\/09\/25\/sikorsky-x2-sets-unofficial-speed-record\/"},"modified":"2010-09-25T21:14:00","modified_gmt":"2010-09-26T02:14:00","slug":"sikorsky-x2-sets-unofficial-speed-record","status":"publish","type":"post","link":"https:\/\/www.panix.com\/~msaroff\/40years\/2010\/09\/25\/sikorsky-x2-sets-unofficial-speed-record\/","title":{"rendered":"Sikorsky X2 Sets Unofficial Speed Record"},"content":{"rendered":"<p><img decoding=\"async\" src=\"http:\/\/img15.imageshack.us\/img15\/8569\/getassetu.jpg\" style=\"margin: 0px 0px 10px 10px; float: right; cursor: pointer;\" width=\"300\" \/>The helicopter has <a href=\"http:\/\/www.flightglobal.com\/articles\/2010\/09\/17\/347444\/sikorsky-expects-265kt-from-x2.html\">reached speeds in excess of 250 kt<\/a> (460 km\/h) in level flight, besting the official record of 217 kts set by a (then Westland) Lynx, and the unofficial record set by its predecessor, the XH-59A demonstrator, of 236 kts.<\/p>\n<p>It also appears that it could achieve a speed of 265 kts with the addition of a &#8220;sail fairing&#8221; between the two rotors.<\/p>\n<p>It&#8217;s unclear to me, however how this is a helicopter speed record, and not a compound helicopter speed record, since the tail thruster makes a significant difference in just how power is applied at higher speeds.<\/p>\n<p>I was under the impression that <span style=\"font-weight: bold;\">either<\/span> a wing or a horizontal thruster made it a compound helo, but it appears that the definition being used here is that it&#8217;s specifically the wing that makes it a compound helicopter.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The helicopter has reached speeds in excess of 250 kt (460 km\/h) in level flight, besting the official record of 217 kts set by a (then Westland) Lynx, and the unofficial record set by its predecessor, the XH-59A demonstrator, of 236 kts. It also appears that it could achieve a speed of 265 kts with &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-188444","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\/188444"}],"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=188444"}],"version-history":[{"count":0,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/posts\/188444\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/media?parent=188444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/categories?post=188444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/tags?post=188444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}