The elevator torque tube, not being concentric in operation, means a large opening in the fuselage up front and cold feet. Here's my solution. It seems so simple.
First seal the entire canopy with soft, open cell foam from the hardware store. The canopy has no problem closing and it’s air tight. Next, get the cabin air flowing forward.
This is a fuzzy shot of the torque tub opening. I have fared the hole back so air tends to flow out, not catching and blowing in. The canard then gets a small set of fairings to divert air away from this hole. 
A small NACA duct under the wing feeds air to the oil cooler and 60 percent of that air goes into this plenum and is piped through the firewall with a butterfly valve controlled by the GIB via push-pull cable.
Scat tube takes the hot air to the front opening of the hell hole.
A piece of 1 inch foam board forms the seat back which has a U channel cut so that heat comes up and into the cabin behind the head of the GIB. Heat could possibly be fed into the hell hole and allowed to find it’s way forward at a lower level. but I’m not sure heating up the landing gear is a good idea. This picture also shows a second seat back specially built for the little lady, who seems to be shaped differently than a man. The principle is the same. Fiberglass reinforces the foam where necessary.
The key is in the fairings under the canard. I made a set out of aluminum and duct taped them on to experiment. They are about 4 inches long and keep air from slamming into the elevator tube. Even before fairing the hole I had warm air around my feet. No cold draft at all. Now I’ve made them officially out of fiberglass.
No comments:
Post a Comment