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

In a message dated 8/23/99 23:19:24, you wrote:

a. The engine exhaust is dumping right by a NACA inlet for cabin air on a
standard KIS, even assuming that you seal that off, it is going to be going
right by the canopy on the pilot's side.  I would worry that both the
possibility of a leak, and the increased noise (having the exhaust pointing
right at the door) would be a concern.

As Vance says wear ear phones! :-) (Let them eat cake?)
I think I can lower it a few inches. I don't want to get too close
to the wing however. I think the side exhaust is worth solving
those kinds of problems.

---------------
Earphones addresses the noise, what about the <potentially> leaky door seal,
sucking in exhaust fumes (CO)?
Bill

The obvious is do a good job of sealing the door.

The NACA duct mounted someplace else should do a pretty good job of
slightly pressurizing the cockpit. If in doubt use a manometer
to check the cockpit pressure relative to static pressure from
the pitot tube. The end of the exhaust is about a foot and an half
ahead of the door. There should be a lot of mixing with fresh
air by the time it reaches the door. Get some of the CO monitor
stickers and place them in the cockpit to be sure.

The side exhaust should be an overwhelming advantage to those who have 
layed on a creeper cleaning the gunk off the bottom of their airplane
with very caustic solvent dripping in their eyes.

Another advantage of having the air coming out of the cowling on
the side of the airplane is there is a low pressure area over the wing.

During climb the entire bottom of the fuselage is a high pressure area. 
Not a good place and time to dump cooling air. All the most recent 
radial piston engine airplanes had cooling air coming out the side of 
the cowling like the Bear Cat and T28.

I am going to do what ever it takes to make it work.

Paul Lamar
 
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