Busy most of the day hanging out with Anita but I did get into the shop to start to implement my equipment cooling idea. I bought some plastic PEX elbows which will work nicely with the tubing that came with my cooling fan. This is a fan allowed in certified airplanes but there is just no room for it behind the instrument panel, which is why I will put it in the baggage compartment. I will make some kind of wire cage to prevent foreign objects from entering the fan intake and to prevent baggage from blocking air flow to the inlet.
After looking at some hose routes I found the best place on the baggage wall to make the holes. I made a doubler plate that the plastic elbows will be attached too and then transferred this dimension to some graph paper. I will use this to make the mold for the glass layups. This is kind of fun as it will be the first thing I have fabricated from scratch out of fiberglass. This fan really puts out some air so it should make for some nice cool instruments.
In the pictures you can see how this should go together. Top hose in the picture goes to the Garmin 430 GPS and the hose my finger is on will go to the transponder. I have a 3rd port that will route air to someplace yet to be determined. The Garmin units are the only ones with cooling ports built into the connection housings.
Approximate location of the fan
Layout on paper for the plenum to extend the out let to the 3 ports
