Hello Guys , I have one question regarding a vertical
             installation.
             If I isolate the oil circuit with a sump pump and have
             the oil tank separated from the engine.
             Do you think It would create problem for the engine to
             run?

             Thank you

             Frank

             Sustained vertical operation.
             I can't say for sure because I have never seen this done.
             I am also sure the devil is in the details so it depends
             on how well the scavenging system is designed. You would
   be on
             the bleeding edge. You will probably need a scavenge
             pump to extract the oil from behind the rear main bearing.
             If you don't do this the rear main bearing might overheat.

             The other major problem might be... you may not get oil
   flowing
             out of
             the lower rotor. The rotor may merely fill up with oil
   allowing
             no cool oil to flow in. Effective rotor cooling depends on a
             constant flow
             of cool oil. Therefore the oil cooling of the lower rotor
             may not function.

             You won't know all this until you try.
             It would be safer to use a bevel gear box and run the
             engine as Mazda designed it to run.

             In VTOL use vertical operations are used for only a few
   seconds
             while
             landing and taking off.

             Paul Lamar ...No rotor no motor.




   I wouldn't run the engine vertical. Besides the oiling and cooling
   problem,
   you will have the entire weight of each rotor on the bottom irons. I
   would
   think this would lead to some pretty quick wear.

   Bob Mears



Thrust bearing would be loaded continuously too.

Mark S.



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