Hello:
Can anyone tell me if the center rotor and rotor housing of a 20B are

different than rotor housings of a 13B?  If they are interchangable, is
there a certain year model that is required?  Thanks in advance!

Thanks,
Don Mitchell

I don't thinks so Don. Bruce Turrentine makes 20B's out of 13B parts
(and a 20B shaft and a 20B intermediate housing of course). Come to think

of it

the exhaust ports could be bigger on a 20B. That could be a minor problem.

Paul Lamar

Only difference is exhaust port inserts which are angled in the 20B (to
direct exhaust into turbo exhaust).  Recommended part to use is any of the
13B turbo rotor housings.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

The AirCraft Rotary Engine NewsLetter.              Powered by Linux.

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