Hi Paul,

As far as I know, Rotamax rotary engines do not have any oil sump,
they work with oil direct injection. In your opinion, is that a good
thing or not? Would you recommend oil sump or oil direct injection?
I am looking to get 350 Hp out of a 2 Rotor engine, in all aluminum.

please see following picture of a Rotamax engine.

http://www.indysportaviation.com/Oshkosh2008/rotamax120hp.html


Thank you Andy Mangold

It is called charge cooling and it is inadequate for an aircraft
engine called on the generate over 50% power for long periods of
time.

You will need a high pressure oil system with oil cooled rotors. In
other words a Mazda.

Paul Lamar

Paul,
Thank you very much for the info.
I am planing to run the two engines only on 50%, even for take off. Only in
case of emergency, when one engine is failing, the remaining engine has to
go up to 100, but only for about 5 minutes.
In a case like that, would you say it is OK?

Andy Mangold

Good luck. Might work.

The rubber coupling they used also failed causing a crash.

Paul Lamar



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