andymeyer

Bruce,

How'd you fix the leak? I have just a very slight stain below my gauge...

Andy

Most of the "composite" props are carbon or glass over wood - truly "composite".

Most of us are flying with these - as built by Prince, Hertzler, etc...

The Long EZ typically is close on landing field and take-off field requirements so an adjustable prop won't make much difference in field availability. As far as climb, yes - an adjustable prop may help some, but you also give up some cruise efficiency as the shape of the blade for an adjustable prop is a compromise whereas a fixed pitch prop would be optimized for one condition. You'd also pay a penalty in weight and complexity - which are certainly important to consider in these airplanes. One cancelled flight and you've cost yourself all of the gains in climb performance.

So, yes - this is true...

But, it's diminishing returns... doubling the flow rate does not double the heat transfer. It increases, but doesn't double. In addition, to double the flow rate requires a lot more pressure - ~4x so it's difficult to double the flow rate inside the cowl without modifying the fins. Modifying the fins (reducing restriction - bigger gaps or less fins) would drastically reduce the heat transfer.

Slower flow rates result in the fluid being closer to the stove temperature, but cannot remove near as much heat. 

I'm not too far up the road at KBEH - SW Michigan... Know of another EZ in Niles, MI. Not a lot around here, but there are a few.

Drop me an email at my last name put before kc135 at googles email system.

Kent,

Keep up the posting and info... It'd be great if we had one good site with this information that was active, BeechTalk has done well - how to we duplicate that (even on a much smaller scale) here...

Keep the good info flowing!

Andy