Brian,
     >
     > excuse my ignorance, but I don't remember what bird you are building?
     >
     > Did you do any calculations between your proposed cooling air ducting and
     > one proposed by Paul on this newsletter a couple of weeks ago?
     > The one with the rad under the cowl/fuselage and the possibility to move the
     > front end up/down to modify the frontal area?
     > To me this seemed the most elegant solution (..once faired in!!).
     > I am interested how Paul's system compares to yours for example in
     > aerodynamic drag.
     >
     > Thomas J.

I'm building an RV-4, the cooling is very similar to Perry Casson's. I'll send pictures in a few months when I get to the point of setting up the cooling and cowl arrangement.

Brian Trubee

 
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