Ian Beadle wrote:

Hi Paul
What is the latest on mufflers? Do I need to import a Spintex for the
Renesis or will a standard firbreglass job do?
Ian

Just make a tangential can out of 2 mm thick 304 SS and you will be fine.
321 SS would be lighter but a lot more expensive. In that case you might
be able
to get along with 1.5 mm thick.

The down pipe can be 1 mm thick.  You need to use a Schertz beam front
motor mount to get the motor mount tubes out there to clear the muffler.

Better yet one of Georges bell housings with motor mount brackets
to get the tubes out to about 15 to 16  inches from the
engine center line to clear the muffler.

BTW was your prop stopped when you crashed? Did you notice a lack of
elevator authority?

 The engine was at idle, can't really remember any lack of elevator
authority, maybe that's why it was such a hard landing. More likely pilot
error.
Is there an Vans RV7 engine mount frame on the market to match the Shertz
beam or Georges housing? I intend to go the easy quick way this time. That
one and one half degree and 6mm offset was is not easy for an amateur like
me. I had intended to get a Conversion Concepts mount.
Happy flying, Ian.

Jerry Hey can build you one but it is pretty costly to ship to Perth Australia.
Maybe Don Dunbar can fix you up with a local tig welder in Perth. If you use a rear mount like
this you can adjust the down thrust angle for best speed. This idea was originally
very successfully used on QuestAir Ventures. You will need a custom aluminum oil pan as well.

You can shim the mount for side thrust angle.
 
Paul Lamar
 
The Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2004 All world wide rights reserved.