I've seen a few discussions on this topic, the maximum length that the wire between a brushless motor and ESC can be. I'm looking for a concrete answer, based on REAL electronics engineering fundamentals, not old wives tales (don't tell my wife I said that).

Some model planes, especially Glow to Electric conversions just don't allow for putting the ESC within a standard wire length (as delivered with the motors and ESC), so can distances like 9", 12" 15", 20" be acceptable? Can changing the wire guage size conpensate for longer distances?

Would love answers from the Forums Electronics Engineers, state your MS of EE origin or IEEE Certificate :^) Seriously.