I am an A&P with inspection authorization and a commercially rated
pilot.  I am currently building a KR 2, basically to get the education
in fiberglass.  This KR was started by someone else and he decided to
lessen the width as he only wanted to fly solo.  He is working with me
on the airplane.  We are both in our 70's.

     We want to put a rotary engine on the airplane, again, for
educational purposes.  We neither know anything about rotaries so any
advice would be helpful and appreciated, included which engine we
should start with.  I also want to SUBSCRIBE to your newsletter and
emails.  Thank you,
Dave Coulson

As I recall a lot of KR's use the O-200. Right at the moment
there are no 2 rotor Wankel engines sold that will work.
Aixro in Germany is working on one but it is not ready yet
for sale yet.

The Mazda 2 rotor is too heavy firewall forward for a KR but you
might contact this guy and see if he will build a one rotor Mazda
for you.

Daryl Drummond <daryl@drummondengines.com>
Daryl Drummond <fastrotary@earthlink.net>
http://www.drummondengines.com/

The cheapest would be cast iron end housings and the fire wall forward
weight would be 20 to 30 pounds heavier than an O-200 but the
P-port power would be 125 HP rather than 100 HP.

One can buy Racing Beat aluminum end housing which would get the
firewall forward weight below the O-200 weight. They are rather expensive
at about $1500 each but not compared to the price of a new
O-200. You will need 2.

One rotor engines are not hard to build your self if you have access
to a large lathe. You will need to send the parts out to have them balanced.

Paul Lamar