Hi rotaryeng

Can someone please assist with a technical question regarding a RX8 4
port low power manual engine 190 bhp
engine will be used in helicopter.

 We would like to find out what the rotational inertia is so a damper
can be designed for the pulsation

 Also can someone clue me up regarding the purchase of aluminium end
plates, where to purchase and what should the cost be,

Would very much appreciate your assistance

Kind regards
George



Kind Regards
George Crooks


I have no idea on the rotational inertia but here is a coupling design
that has evolved from years of experience.

Aluminum end plates are available from Racing Beat.

http://www.racingbeat.com/RX7-1993-1995/Rotor-Intermediate-Housings.html

They are peripheral exhaust and do not use the RX8 side exhaust.
In that case you might as well sell the 4 port RX8 engine and buy
a 3rd gen RX7 engine and base it on those rotor housings, e-shaft and
rotors.

I recommend p-port intake as well. In that case you will have 250
HP to work with at 7500 RPM.


Paul Lamar