One other item.
I have spent considerable time thinking about how to
transition
with a flexible
connection from the plennum openings to the openenings on the lower
cowl.
For the guys
with round holes and ducts it is an easy problem to solve. My openings
are
rounded
rectangles like the openings on the 235 cowl. I recently rented the new
DiamondStar DA 40. (4 place Katana)
They have used a
very cool neoprene seal on their set up. It is a neoprene seal that appears to
fit on the
forward edge of
their cowl and has a flange that goes back toward the
engine.
This material
could be used for any shape duct and is very soft and
flexible.
It essentially
connects to hard ducts together leaving a flexible
joint.
I am trying to
locate a source for the part or possibly a mfg.
If anyone knows
where this material can be obtained please let me know.
I will continue
to research it and post pictures if possible.
I have seen some builders
use the legs or arms from a scuba diving suit as it is thick
material.
Gary
Edwards
LNC2
N21SN