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Date: Tue, 08 Dec 2009 11:16:31 -0500
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From: Burr Bryan <bjburr@mwheli.com>
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Subject: Super ES Cabin Heat

The Lancair Super ES (TSIO 550E) normally takes the cabin heat from  
the sonic venturi ports on the induction air system.  This does not  
provide very much heat, it is extremely noisy, and what heat is  
provided is lost in decent when power is reduced and the turbochargers  
are not in demand.  In pressurized airplanes ie. LIVP and Piper  
Mirage, the heat is provided through the pressurization system and  
these problems are eliminated.

I have contacted Aerospace Welding Minneapolis, manufactures of  
several exhaust systems for many different GA aircraft, about making a  
heat muff system for this engine.  They are willing to look at  
manufacturing a heat muff shroud that would wrap around the R/H  
exhaust pipe. We looked at the turbo crossover tube but there is not  
much clearance between the tube and the firewall.

Is anyone interested in this type of system for their TSIO550 powered  
ES?  I am trying to get an idea of how many systems could be produced  
at one time if a group order were placed.  Also, would anyone be  
willing to part with their r/h exhaust pipe for evaluation purposes?

Thanks,
Bryan Burr
N132BB
Lancair Super ES