8 thoughts on “Prototype Bi-copter at FliteFest

  1. I thought I read someone saying that for stability a low CG is better due to pendulum effect. It’s actually reverse (common confusion).Try with the battery on top. 100% of the rc helicopters are more inherently stable when flown upside down.
    For pitch stability authority, it’s defined by the position of the cg along the length axis, but the problem is that it makes it stable only in one flight direction (towards where the CG is leading on the motor axis). Moreover, increasing rotational inertia of the body helps too (distributing weight at the outer ends rather than all around the motor axis).

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