Quote:
Originally Posted by jf1981
Because there are forces and moments which are not really the same thing in that sense. You have strong forces between the propellers when the plane (read direction) of rotation changes, but the forces are in opposite direction through the physical structure and cancel each other.
You have not eliminated the forces, it goes through somewhere, even on diffeent wings for contrarotating, the airframe absorbs the forces through wings and structure, in some cases the forces are equal and in opposite directions.
Nothing disappears, nothing wrong. You get to look into what's happening in a gyro more in details. Don't see any question really.
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my point is pretty clear in this drawing:
take the mass of the wizard neglectable(what brings down your point) compared with the propellers
