Subject: Concerned about Wiggins
From: Paul
Date: 4/12/2001, 2:04 PM

Lisa Speak wrote:

Paul,
Had my Dad at my house this past weekend looking at my project. He is a
retired mechanical engineer and had some concerns about the Wiggins and
aluminum tube conection from the pump to the rad. I mentioned that there is
a little give in the silicone seals in the ferrule, he was not convinced. I
know that this has been taked about at length but still am concerned about
the vibration especially if the rad is hard mounted obliqely under the motor
to the motor mount, considering the 13b is mounted on  Barry's. I would like
to mention that the quality of the Wiggin's from Bill is exceptional but I
am concerned about the application. Should the rad be Barry mounted also to
absorb the hard mount vs soft mount/ soft mount vs soft mount?

Ken Gillanders
BD4 13B

These are widely used in airliners and all Continental water cooled aircraft
piston engines as well as formula one race cars.

Yes but the Barry mount can be much smaller. Chuck Dunlap mounted his rad with
rubber mounts and it is working great. He made it to Sun & Fun and is probably
on the way back to Arizona from Florida as we speak.

Paul Lamar
 
The AirCraft Rotary Engine NewsLetter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org