{"id":193901,"date":"2008-11-08T08:02:00","date_gmt":"2008-11-08T13:02:00","guid":{"rendered":"https:\/\/www.panix.com\/~msaroff\/40years\/2008\/11\/08\/son-of-hyper-x-approaches-flight-ready-status\/"},"modified":"2008-11-08T08:02:00","modified_gmt":"2008-11-08T13:02:00","slug":"son-of-hyper-x-approaches-flight-ready-status","status":"publish","type":"post","link":"https:\/\/www.panix.com\/~msaroff\/40years\/2008\/11\/08\/son-of-hyper-x-approaches-flight-ready-status\/","title":{"rendered":"Son of Hyper-X Approaches Flight Ready Status"},"content":{"rendered":"<p>The X-43A was a rather crude demonstrator, relying on a large, heavy copper heat sink and burning hydrogen, but the <a href=\"http:\/\/www.aviationnow.com\/publication\/awst\/loggedin\/AvnowStoryDisplay.do?fromChannel=awst&amp;pubKey=awst&amp;issueDate=2008-11-3&amp;story=xml\/awst_xml\/2008\/11\/03\/AW_11_03_2008_p62-93073.xml&amp;headline=X-51A+Scramjet+Engine+Completes+Ground+Tests\">X-51a is much more advance, and much more viable technology<\/a>much lighter, and being actively cooled by its own hydrocarbon fuel, and the flight ready SJX61-2 scramjet has finished ground test<\/p>\n<p>It will start on ethylene, and than sustain thrust with JP-7, the fuel used by the SR-71, and should have a powered endurance in the 300 second range, following launch at 50,000 feet by a B-52 and a boost to supersonic speed by a booster derived from the ATACMS missile.<\/p>\n<p>I think that if this transitions to anything in the near term, it would be some sort of missile, and if they can get 300s thrust at mach 5 or so, you would be looking at a total range on the order of 600+km.<\/p>\n<p>One of the things that would change is that you would see a lot less metal, and a lot more composite.<\/p>\n<p>Picture Pr0n below:<\/p>\n<div style=\"text-align: center;\"><img decoding=\"async\" src=\"http:\/\/img232.imageshack.us\/img232\/3479\/aw110320081704l5605561tf1.jpg\" \/><br \/>SJX61-2 Engine in Hypersonic Wind Tunnel<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img112.imageshack.us\/img112\/9995\/aw110320081705l5622257yb3.jpg\" \/><br \/>Titanium nozzle for SJX61-2<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img440.imageshack.us\/img440\/484\/aw110320081706l5639498np0.jpg\" \/><br \/>The fuel tank is integral to the structure.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/img444.imageshack.us\/img444\/2733\/aw110320081707l5665329sm9.jpg\" \/><\/div>\n","protected":false},"excerpt":{"rendered":"<p>The X-43A was a rather crude demonstrator, relying on a large, heavy copper heat sink and burning hydrogen, but the X-51a is much more advance, and much more viable technologymuch lighter, and being actively cooled by its own hydrocarbon fuel, and the flight ready SJX61-2 scramjet has finished ground test It will start on ethylene, &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1007,1036,1025],"tags":[],"class_list":["post-193901","post","type-post","status-publish","format-standard","hentry","category-aviation","category-nasa","category-technology"],"_links":{"self":[{"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/posts\/193901"}],"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=193901"}],"version-history":[{"count":0,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/posts\/193901\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/media?parent=193901"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/categories?post=193901"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.panix.com\/~msaroff\/40years\/wp-json\/wp\/v2\/tags?post=193901"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}