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RE: Europa-List: RE: Heaters

Subject: RE: Europa-List: RE: Heaters
From: Mike Parkin <mikenjulie.parkin@btinternet.com>
Date: Sun, 23 Nov 2008 09:55:00

Hi Guys,


I note your comments on the heater system.   I have to say that my
experience with the system has shown it is not as effective as you might
imagine.  The problem is that it works fine in the climb when the
temperatures are up,  but in the cruise, my 914 will cool right down and
then the heater is ineffective.


The cooling system on G-JULZ is just too effective in the cruise and it
concerns me that the engine is running for lengthy periods at temperatures
well below 100degC.  I have a modification in progress to introduce a cowl
flap in the cooling air exit in an effort to control the engine
temperatures.  If it is effective I am also developing a micro-processor
temperature control system to make the whole system automatic.


If this mod works then, the heater will hopefully become more efficient.


Regards,


Mike



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