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


Wait..  The engine's going to be vertical at least some of the time in
the delta wing VTOL.  Because of that, the engine will have to be setup
to run both ways for at least some amount of time..

A different issue:  Storage (hangaring).  Do we want to be able to sit
in a normal hangar?  We'll have to come up with a way to tip the machine
over for storage.


Regards,

Matt-


Empty weight will be less than 700 pounds as a guess.
The five foot long  lower rudder can be articulated with a hand crank
like a Long EZ nose gear.

Paul Lamar

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