Guest M. McRae Posted August 31, 2003 Share Posted August 31, 2003 http://www.popsci.com/popsci/aviation/article/0,12543,473272,00.html Link to comment Share on other sites More sharing options...
Say Altitude Posted September 1, 2003 Share Posted September 1, 2003 Link to comment Share on other sites More sharing options...
Guest AME Posted September 1, 2003 Share Posted September 1, 2003 Cool The last major leap in aviation technology was Frank Whittle's turbine engine, ever since then all we've seen is refinements and improvements on exsisting technology. Brett Link to comment Share on other sites More sharing options...
Mitch Cronin Posted September 1, 2003 Share Posted September 1, 2003 Pretty interesting stuff! I'm having a little difficulty accepting the notion of fitting these things in the bypass duct of a turbofan though... Right now, the main reason high bypass turbofans are quiet enough to meet the stage 3 noise levels is because of that slower fan air surrounding the core air and blanketing it's roar... "The sound of a hydrogen-air mixture detonating 40 times a second in a 3-foot-long, 2-inch-diameter metal tube is a cross between a cruise-ship horn and a jackhammer. It seems to go right through your skull, even from behind the concrete and double-pane tempered glass of the control room." So what happens when you put several of them in that fan air bypass duct? Yikes! Thanks for the link Malcom... I'm guessing noise might well prevent that particular version of a "hybrid", but I'm sure they'll find uses for it. Cheers, Mitch Link to comment Share on other sites More sharing options...
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