Mailing List flyrotary@lancaironline.net Message #61944
From: Bill Bradburry <flyrotary@lancaironline.net>
Subject: RE: [FlyRotary] Re: West Aussie Rotary
Date: Mon, 29 Jun 2015 09:33:56 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>

Andrew,

That radiator looks like my first install attempt except I fed it with a duct that came in on the lower left side instead of underneath.

I doubt foil will solve your blistering paint problem.  That exhaust is hot!  I have a muffler that is over 15MM from the cowl and with foil on the cowl the paint still blisters.

Bill


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Monday, June 29, 2015 9:00 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: West Aussie Rotary

 

Must admit, all info re cooling exit came from Peter Garrison, I really like people that think outside the square rather than accepting "conventional".

If the photo below attaches, it shows the engine being setup a couple of years ago, wedge duct can be seen on radiator, divergent duct is not on the plane but goes under the engine mount, exhaust is all fabricated on farm, manifold is piece of 150x50 mm oval cattle rail 3mm thick with 3 50x25 mm RHS stubs welded to exhaust flange, pipe angles were deliberate to reflect as much sound back into engine as possible, but not restrict flow, seems to work so far. no muffler needed. stainless heat shield now wraps around manifold but not pipe, its this area which is blistering paint so need to stick some foil to inside cowl.
Intake now has small filter attached directly to TB for simplicity.

 

Andrew



 

On Mon, Jun 29, 2015 at 8:36 PM, Charlie England <flyrotary@lancaironline.net> wrote:

Looks like a really nice design. The cooling exits look a bit like Peter Garrison's Melmoth; I think he had good luck with the design. The 'turbine' exhaust exit does look cool. :-) Did you include a muffler, or did you just turn the stock exhaust manifold exit out the side? How are you protecting the cowl from melting near the pipe? Looking forward to seeing engine installation pics. Keep 'em coming (or just put them on a photo sharing site).

 

Thanks,

 

Charlie

 

 

 

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