Thread: Discussion F22 Raptor Drawings - Update
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Old Feb 08, 2008, 02:48 PM
gghisleri is offline
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Originally Posted by nem3
Well its kind of a catch 22. You either do it the way I do, or the way you suggest. Either way you end up with a problem. If you do it your way, the entire intake would have to be roughly 130% of the FSA. And once the air got to the spinner section, there would be an abrupt change in area and velocity. Or you could start off with a 100% FSA intake and then go to the fan dia. But then your going from small to big to small again. The would be two changes in area and velocity. I know that many won't agree with me and that O.K. I would rather try it my way and see what happens, than just say it'll never work.

Any ways here are a few more pics to help you guys sleep at night. It's 2:10a.m. and I think I'll be heading off to bed now.

Just my opinion,I'm not pushing you.
Air has no problem to increase speed ,but get a lot going against a pressure increase that can be found whenever speed decreases.
It's not the same case,but the most drag in a wing profile is caused by boundary layer separation.
I think that the best designed air duct in the modelling field are those found in Violett kits,take a look at them.
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