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Originally posted by Stealth Spy
Wow, an excellent study planeman , but do you think the professional aerospace companies that spend millions and employ hundreds and spend a lot of money to register patents overlook stuff that appear to be obvious design basics ? Perhaps there is more to it than what seems obvious ?
Originally posted by carcharodon
As for Boeing's Sonic Cruiser it was a major technology development aircraft. the B 787 Dreamliner used all its technology development and is currently breaking the record for the fastest selling plane...
Boeing now believes that the Mach 0.98 Sonic Cruiser airliner will need advanced technology -- all-new engines and an all-composite airframe -- to meet its performance, economic and environmental targets, according to product development VP Dan Mooney.
Mooney says that there was "some early optimism" among Boeing leaders who suggested that the radical aircraft could work with simple derivative engines and a conventional structure. "The preliminary design folks were kind of cringing when they heard those statements," he says.
Composites, however, are necessary to meet weight targets given the Sonic Cruiser's large wing area, and the new engines will represent a balance between noise, efficiency and cross-sectional area.
According to Mooney, the first round of wind tunnel tests last year produced positive results in two important respects. "There were two concerns: the drag rise near Mach 1 and what would happen when the aircraft goes through Mach 1." Tests have shown that the drag rise is flat up to Mach 0.98, without an abrupt increase, and that the design is stable above Mach 1.
Originally posted by Figher Master FIN
Pleasure to read as always...
I agree with you on the stealth factor... but flyin without tailless design can be pretty bad... Sure it gives better stealth... BUT, what about the stability...??
Santa Clause does exist... He lives here in Finland...
[edit on 4-4-2006 by Figher Master FIN]
Originally posted by ghost
You made some really good points! As for the issue of the swing wings, I've wondered the same thing. Now, the rounds exausts could work. Check out the jet nozzle on the back of an F-35, it's very simular. However, your other points are something to look into!
Tim
Originally posted by kilcoo316
I don't think the F-35 is designed to have a low RCS from the rear quarter though.
Originally posted by waynos
doesn't a convergent/divergent afterburning nozzle, such has the F-35 has, pretty much rule out all aspect stealth?
Originally posted by waynos
doesn't a convergent/divergent afterburning nozzle, such has the F-35 has, pretty much rule out all aspect stealth?