Bob you're right on in regards to the intake but I've never found anything showing the reverse is true. Most designers still you a standard square duct for exiting. Ask George Pereira about the GP designs or look at some of the glass aircraft.
Fred Johnson -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf Of Bob Lee Sent: Tuesday, October 03, 2006 2:33 PM To: 'KRnet' Subject: RE: KR> Regarding NACA duct Sucking air Guys, Let's not get too technical for KR work here. It's real simple flow goes from high pressure to low pressure. A NACA duct is good for capturing total pressure from a flow or returning total pressure to a flow (reverse placement to outflow back to the free stream). Where is the high pressure and where is the low pressure? Once you know that then you can maximize the flow from high to low! What's all this suck blow stuff anyway? The problem here is the terms being used, not the engineering. Regards, Bob Lee N52BL KR2 Suwanee, GA 91% done only 65% to go! _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html