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ESC placement not 4 in 1

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I have searched for hours, so here is my question.

I am looking for experience and facts on where is the best location to put esc’s for large (1200+mm) quads.

Options are either,

  1. At the motors.
    I get that this option is good for airflow but long power wires create problems?
    If you have longer power wires should you add capacitors/bigger capacitors?
    There is the downfall of having long signal wires, is there a fix for this other than twisting the wires?

  2. In the center of the frame
    Less air flow but the DC power wires are close to the source.

Last question, does adding large capacitors (I am aware that they need to be the high esr type) inline help? Other than weight does adding massive capacitors matter, is their a downside to this? I have some Panasonic 1000uf ones that I want to add vs the 330uf that they call for.

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