Thanks guys.
Bob & Kyle, not surprised that speed may be affected.
![Frown :( :(](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I am told that up to 10% of thrust on some turboprops comes from exhaust when in the cruise mode. I'll certainly consider the angle that the exhaust exits at in my overall plan.
Dan H, I hope to save weight, get heat out of the cowl faster, simplify and declutter the installation, make the plane easier to work on, save room, and not degrade power or speed...
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Also hoping to make it look like the cowl is all aluminum with an aluminum or SS section added between the top and bottom cowl for the stacks to come through. It might make you look twice!
There are other problems to solve though too. Cabin heat has to come from BTUs in the oil... Anyone have any experience with that?