{"id":188712,"date":"2010-08-08T12:27:00","date_gmt":"2010-08-08T17:27:00","guid":{"rendered":"https:\/\/www.panix.com\/~msaroff\/40years\/2010\/08\/08\/i-place-this-up-there-with-soviet-super-chopper-claims\/"},"modified":"2010-08-08T12:27:00","modified_gmt":"2010-08-08T17:27:00","slug":"i-place-this-up-there-with-soviet-super-chopper-claims","status":"publish","type":"post","link":"https:\/\/www.panix.com\/~msaroff\/40years\/2010\/08\/08\/i-place-this-up-there-with-soviet-super-chopper-claims\/","title":{"rendered":"I Place This Up There With Soviet Super-Chopper Claims"},"content":{"rendered":"<div style=\"border: 1px solid black; float: right; margin: 0px 10px; padding: 5px; text-align: center; width: 400px;\"><object height=\"317\" width=\"390\"><param name=\"movie\" value=\"http:\/\/www.youtube.com\/v\/3H7BeyQOnPk&amp;hl=en_US&amp;fs=1\"><param name=\"allowFullScreen\" value=\"true\"><param name=\"allowscriptaccess\" value=\"always\"><embed src=\"http:\/\/www.youtube.com\/v\/3H7BeyQOnPk&amp;hl=en_US&amp;fs=1\" type=\"application\/x-shockwave-flash\" allowscriptaccess=\"always\" allowfullscreen=\"true\" height=\"317\" width=\"390\"><\/embed><\/object><br \/><span style=\"font-style: italic;\"><br \/><object height=\"244\" width=\"390\"><param name=\"movie\" value=\"http:\/\/www.youtube.com\/v\/bXLb5nY64KY&amp;hl=en_US&amp;fs=1\"><param name=\"allowFullScreen\" value=\"true\"><param name=\"allowscriptaccess\" value=\"always\"><embed src=\"http:\/\/www.youtube.com\/v\/bXLb5nY64KY&amp;hl=en_US&amp;fs=1\" type=\"application\/x-shockwave-flash\" allowscriptaccess=\"always\" allowfullscreen=\"true\" height=\"244\" width=\"390\"><\/embed><\/object><br \/><\/span><\/div>\n<p><span>Skylon<\/span> is claiming that it will <a href=\"http:\/\/www.theregister.co.uk\/2010\/07\/22\/skylon_engine_tests_farnborough\/\">have its liquid air engine ready for test in 3-4 years<\/a>.<\/p>\n<p>Considering the fact that it&#8217;s really being run on a shoe string, I simply do not find this a credible timeline.<\/p>\n<p>Additionally (top video) it&#8217;s reentry profile appears to be problematic to me.  The knife edge canard appears to be in a weak shock on reentry, which means that the surface temperature would much higher than in something like a space capsule, or the relatively blunt edged shuttle wing leading edges, where much of the heating occurs in a strong shock that is some distance from in front of any structures, but I am not an <span>aerodynamicist<\/span>.<\/p>\n<p>If you look at the bottom video, from a couple of years ago, where Richard <span>Varvill<\/span>, Technical Director of Reaction Engines Limited talks about a 12+ year development cycle with a demonstration of the heat exchangers in 3 years, that sounds rather more realistic.<\/p>\n<p>The bottom <span>vid<\/span> is also a nice primer on the basic operation of the Sabre engine.<\/p>\n<p>My <a href=\"http:\/\/40yrs.blogspot.com\/2008\/12\/son-of-hotol.html\">earlier post on the vehicle and engine<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Skylon is claiming that it will have its liquid air engine ready for test in 3-4 years. Considering the fact that it&#8217;s really being run on a shoe string, I simply do not find this a credible timeline. Additionally (top video) it&#8217;s reentry profile appears to be problematic to me. The knife edge canard appears &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1007,1037,1025,1027],"tags":[],"class_list":["post-188712","post","type-post","status-publish","format-standard","hentry","category-aviation","category-space","category-technology","category-video"],"_links":{"self":[{"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/posts\/188712"}],"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=188712"}],"version-history":[{"count":0,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/posts\/188712\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/media?parent=188712"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/categories?post=188712"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/tags?post=188712"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}