Russ Houck wrote: > Do the NASA scopes work around the cowling to move cooling air as well as on > the bottom like Mark Langford's? Do these reduce air speed? Is there a > specific size that is better than another?
I don't know. I'd been planning on using a NACA duct myself, but then I started wondering did I want to speed the flow or slow the flow (which would determine how it was installed), and then I started noticing that NACA ducts for carb inlets are pretty rare. Even Nemesis used a snorkel, as do most Lancairs, RV's, etc, so I decided that'd be good enough for me. Any wisdom on this matter would certainly be appreciated. Another part of my problem is that I have this reversed NACA duct right behind the cowling on the bottom of the fuselage, so if I have one sucking the air in, what's left to help the cooling air exit? Later I may just cut this thing off and try the NACA duct, just to see if it makes a difference, but for rignt now, I'm going to take the wimpy way out and graft this thing on and call it done! Mark Langford, Huntsville, AL N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford
