Old 11-14-2020, 06:02 PM
  #15  
astrohog
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Originally Posted by speedracerntrixie View Post
I see your point however with a little thought put into it you can reduce the size of the exit by designing in a low pressure area as opposed to just cutting a huge hole in the bottom of your cowl.

Low pressure area at the exit of the cowl created by extending the cowl below the fuselage bottom.

This shows the exit size. This exit along with the holes for the muffler stacks and carb are very close to the intake area.
That exit hole would be more effective with a small lip extending downward As seen in the picture below.