Mailing List flyrotary@lancaironline.net Message #47466
From: Charlie England <ceengland@bellsouth.net>
Subject: Re: [FlyRotary] Re: Intake velocity stack length / intake material
Date: Mon, 27 Jul 2009 19:22:26 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Charlie England wrote:
Ben Schneider wrote:
Dennis.

  I was looking forward to seeing your improvements at Oshkosh this year, sorry to hear you won't be there. I am thinking I may make an intake very similar to Tracy's just carbon fiber instead of aluminum. I need to do a little more research before I jump into this. Would you happen to have ever taken an under cowl temp measurement in the vicinity of the intake? I need to figure out what kind of sustained temp it needs to endure. I have my exhaust Jet Hot coated inside and out (supposed to reduce surface temps as much as 65%) though I think some of this is just advertising propaganda. We'll see. I also intend to put a reflective shield between the intake and exhaust. So I am really just trying to figure out the air temp there.

Thanks.

Ben

I don't know exactly how to quantify this, but the -Eze builders were making cooling baffles (screwed directly to the heads of Lyc/Conts) out of fiberglass over 20 years ago, when exotic high temp epoxies weren't available to homebuilders. I guess you have to decide whether the abundance of cooling air or direct contact with a 350+degree cylinder head is more significant in affecting the -glass.

Charlie

Ben,

I just stumbled upon this link on the yahoo group dedicated to RWS controllers. Scroll down to see the uncowled engine.
http://www.samhoskins.blogspot.com/

Charlie

(If you're at OSH, tell 'em hi if my name comes up.)

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