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Builder:
  Mike Crowley
Location:
  Midland, Tx - USA
Aircraft:
  Savannah S
Total Build Hours:
  471
Web Site:
  http://www.mykitlog.com/mcrowley/

Date:  10-20-2018
Number of Hours:  8.00
Short Description:  Cabin heat muff

Wow, no wonder plans built aircraft are 20 year projects! I had to design an entirely different heat muff for cabin heat. I can't take air in from under the engine, I would risk carbon monoxide and just the noxious ordor of exhaust, hot engine, oil, gas, etc. So... I have to have a fairly sealed design. After an entire morning of R&D, my son-in-law, Laredo, had a brilliant idea of making one piece sides that follow the curve of the exhaust pipe. Believe it or not, this all started as flat sheets of stainless steel! First we wrapped the pipe in 15' of stainless steel spring (brake line protector from Amazon) to slow the air down and exchange the heat more efficiently. Then we took a flat piece of SS sheet, then bent up each edge on the folder, then used a stretcher to make the pipe following curve. That's after A LOT of practice with aluminum! We added the duct flange on the bottom, then made sheets cut to fit for both sides, drilled and clecoed it all together. Now just need to make the two ends, then the outflow duct flange and it will be ready to rivet up and install. It is satisfying work, but you can't be in a hurry, you just have to work the problem until you arrive at the solution.




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