Tracy Crook wrote:

Here's some progress shots of Bernie Kerr's RV-9A project.  Amazing

how

that

Griffin rad fits in the cowl .

Tracy Crook
tcrook@rotaryaviation.com

Yes it fits but the back side is not unobstructed enough
and the exhaust will transfer a whole lot of heat to the
back side of the rad. Good luck Burnie :-)

What does he have against putting it under the engine?

Paul Lamar

Hey Tracy!
Bernie's rad looks great!  Shouldn't be any problem with heat if he uses

a

heat shield on the exhaust.
Vaughn.
PS, who's redrive is that?

It still won't work. The necessary heat shield will add further

obstructions

behind the rad. In effect it is little different than the Power Sport
rad mounted too close to the firewall. That also does not work. Am I

really

saying this or is it my imagination. Is anybody reading this?
What have I been doing the last four years?

Paul Lamar

The radiated heat was my biggest concern too but the heat shields installed
on the pipes (available from Aircraft Spruce) really don't add much frontal
area behind the rad.  The redrive is an RWS  RD-1B six pinion drive.

Tracy Crook
tcrook@rotaryaviation.com

 
The AirCraft Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2002 All world wide rights reserved.