Hi Tony,

I am Marc from Montréal.  I am writing you a private message.

I have been reading your web site.  One thing you mention is an
interest in volonteers for the development of the e-Go.  I have a
very well qualified person for you.

Mr. Paul Lamar from http://www.rotaryeng.net/ has a newsletter
operating for the last 10 years on rotary engine for aircraft.  He
has published a book http://www.rotaryeng.net/how-to-cool12.html
(Tony please read the page of his book with a photograph of him and
the hat) Through his newsletter he could offer you free a design for
an engine mount for any rotary engine you wish to install on the e-
Go.  Also he will provide help in cooling the rotary engine.  He is
also very well connected to all rotary engine compagnies.

Paul will help you for any rotary engine installation on the e-Go.
You want to get in contact with him?  Click this http://www.rotaryeng.net/join.html

Marc Joseph

NB:  I am sending him a copy of this message



Paul

You'll see that Marc has recommended that we contact you. We're
thinking of using a Rotron wankel (http://www.parajet.com/index.php?id=171
) on our new e-Go project (www.e-Go.me) and we've very much appreciate
your advice on this installation. We haven't designed an installation
for it (we've done most of our design around the Hirth F33 2-stroke...
yes, I know...!!) so anything that you can contribute would be most
welcome. It would fit very neatly in our pusher configuration, 'though
we'd need to re-work the ancillary packaging.

Tony Bishop
e-Go aeroplanes LLP
Cambridge UK
www.e-Go.me

tony@e-Go.me
+44 (0) 7768 690086

The Rotran (AIXRO kart engine) is a good way to go provided
you can get along on 40 to 50 HP for a short period of time during
climb out. If supercharged or turbo charged cooling would soon became
a serious issue. These engines have charged cooled
rotors that don't lend them selves to high continuous power. Both AIXRO
and Wankel AG are working on suitable non charged cooled engines that
address this issue. Austro engines in Weiner Nuestat have a 50 HP Wankel
with an air cooled rotor that mitigates this problem. They are also
working on a 75 HP version.

http://www.austroengine.at/?changelang=2

Info on the Wankels is not on the web site so you will have to send them
email and ask about the sail plane engines. Many Schlechter sail plains
have used this certified engine for take off.

The other serious problem is the shaft drive to the prop.
Placing a prop at the end of a shaft is analogous to placing
a large flywheel at the end of the same shaft. The one rotor Wankel
engine is a powerful source of torque pulse vibrations.
Not a trivial problem to overcome. Some sort of rubber coupling
must be designed to lower the torsional resonant frequency of the
drive system. The engine must then be idled at an RPM that is above
the torsional resonant frequency of the drive system.
It might be easier and lighter to sweep the wings back so the
CG comes out in the right position without the drive shaft.
Similar to the Rutan Vareze and Long EZ designs.

If you want to be on the newsletter let me know.

Also you might be interested in reading this.
http://www.rotaryeng.net/roadable.html

Paul Lamar


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