X-Mozilla-Keys:                                                                                 
Turrbie@aol.com wrote:

Paul,

I did want to mention one thing about all of the turbo installation notes. I
think one of your biggest problems to contend with is heat soaking under the
cowl. Considering the exhaust temps generated by the rotary and the
additional exhaust system mass (the turbo), you're likely to have quite a bit
of conducted and radiant heat to deal with. I only mention this because it
plagued Mazda's 93 twin turbo. They had heat related problems that took
several recalls to eliminate. I have also seen evidence of eroded cast iron
turbo manifolds from factory turbo IIs. I tend to lean towards the
supercharged approach, although less efficient, it eliminates these problems.

If you need any cheap factory turbos or intercoolers, let me know, I have
several.
Sincerely,
    Bruce Turrentine

I hate louvers from an aerodynamic point of view but I may be forced to 
put a few in the cowl adjacent to the turbo to solve this problem.
It would be less of a problem with an aluminum cowl but we 
should be so lucky. My main objection to the super is fuel burn.

It is not just the cost but range is a big issue in airplanes.
Long range is a safety feature. It gives you more options when
the weather turns bad. I tried three times to get to Ketchican(s?)
Alaska once. I flew the three hundread mile trip up from Sand Spit BC
when they told me on the phone from Ketch it was VFR. No possibility of
going IFR because the icing level was 3K. I had wheels and not floats.
Both times I had to turn back when only a few miles from my destination 
because the weather went down.
 
Paul Lamar
 
The Aircraft Rotary Engine Newsletter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org