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Bob White wrote:
Let me re-emphasize this: Every detail of Ed's analysis looks exactly
correct to me. The Mazda 13B produces power and breathes about the same
way a 4 cylinder 2.6L 4 cycle piston engine does, or about the same as a
2 cylinder 1.3L 2 cycle piston engine.
Yeah, but what if the eShaft had an integrated reduction drive that dropped the ouput to 1/3, so that the eShaft output and the rotors had the same speed. Would it then breathe like a 3.9L 2 cycle, or a 5.2L 4 cycle?
8*)
I also think it sound better to think of the rotary as a 3.9L engine
turning 3000 rpm (rotor speed) rather than a 1.3L engine turning 9000
rpm (output shaft speed). It's too bad we can't easily couple the
propeller directly to the rotors and eliminate the PSRU. Now that
would be a setup.
Bob W.
We could do that; especially easy on a single rotor. Press in a propeller adapter in place of the rotor bearing. Then the wobble of the propeller would almost be enough to make you think your were flying behind a Lycoming again! The certified crowd would feel right at home!!
(The peanut gallery hath spoken 8*)
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