Now that I think I understand what I thought I was supposed to sometimes know... What is the concensus for getting exhaust out the back of one of Diehls really tight cowls? I sectioned the sides of it so only the little rounded part hangs below the firewall. Fabricated an oil tank, so I could have the extra oil without interfering with the sectioned cowl. Moved the whole thing forward 4" for counterweighting a fat boy. Are 4 equal length singles more efficient than a 2 into 1 per side? Bobby
> >>As I recall, and you can read Mark's site for clarification, Mark's >>plan was to take the low velocity cooling air and re-accelerate >>it to merge with the slipstream air for less drag. Hence the >>reversed NACA duct. > > Understood, but I have the additional advantage of having an engine > with too high oil pressure. It is almost unbelievable how far the oil > was thrown out of the tail pipe due to the high speed it exited. The > pipes centered on the ducts was guaranteed to concentrate the high > temp under the fuselage at the exit point. This all goes to the fact > that this is all a complex subject and sometimes what seems like a > good idea isn't. > > > Larry Severson > Fountain Valley, CA 92708 > (714) 968-9852 > [email protected] > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to [email protected] > please see other KRnet info at http://www.krnet.org/info.html >
