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Scramjet test successful
On 5/27/2010 11:58 AM, me wrote:
On Thu, 27 May 2010 14:47:55 -0800, Pat wrote: The X-43A was far faster than the X-51A at Mach 9.6, but ran on liquid hydrogen rather than a storable fuel like the X-51A uses. Both were boosted to close to their test points and used GASEOUS H2. Boy, that's one way to reduce your range in a hurry. :-D You would have thought they would have used LH2 and had some sort of heat exchanger to both cool the engine and nosecap while turning the LH2 into gas by heating it. The fact that the four tests will run at four to six week intervals indicates that this is something that the military wants to get on-line in a operational form in fairly short order. Not going to happen, they have all ready said they are standing down for 2010, I interpret that as FY2010. The four-to-six week plan was contingent on everything working right; it apparently didn't: http://en.wikipedia.org/wiki/Boeing_X-51#Testing BTW, there's a scramjet missile pretty close to the X-51A in concept in the Air Force 2025 report from 1996: http://www.fas.org/spp/military/doco...%20%28SHMAC%29 Thought that one flies at Mach 8 and has a built-in as opposed to tandem rocket booster Its range was to be 1,100 miles when launched from a subsonic jet aircraft at 30,000 feet: http://www.fas.org/spp/military/doco...2/img00021.gif Pat |
#22
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Scramjet test successful
On 5/27/2010 1:44 PM, me wrote:
That's old news They announced previous to this test this was the only try this year. The standing army and competition for the B-52 and range resources was just too expensive. What else are they using the test center's B-52 for at the moment? There's a patent for cooling a scramjet's intake via a flush-mounted radiator while heating the fuel he http://www.google.com/patents/about?...ssignee:boeing Pat |
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