Except for one thirty year old sachs brand lawnmower, I cannot find any reference anywhere to a rotary engine mounted with the shaft Vertical. Not even the helicopter conversions using mazda engines. Even Moller at Freedom motors has no info for me on this. All I want to know about is Anything relating to this idea, how it would effect the lubrication, etc. Im talking if the rotors were spinning flat, crankshaft vertical, like a top or in a daquiri blender or a helicopter's blades=you get it. can Anybody tell me about this? I even emailed Mazda about it, no luck. Thanks.

 

Here is a picture of one at Sevenstock.

Its single rotor 13B mounted vertical.

 

why do you want to know this >???

 

In looking into my own unique rotary installation ideas, I've found the multirotor Mazda engines will have drainback problems if tilted very far to the spark plug side. A vertical shaft would leave no way for oil to drain back from the lower rotor, unless maybe you used two front rotors, with a custom E-shaft, center and rear plates.

GL