Motor Layout: Center of Thrust, Mass and Gravity

3691244494?profile=originalHi, I was just doing some reading about asymmetrical multirotor layouts. From what I've understood, the motors are equidistant from the center of thrust. It's not the intersection of lines drawn diagonally from front to back motor.


So given that, would my diagram be a correct representation of a balanced hexacopter even if i did not place the motors on the corners of the hexagon? Is it also correct to assume that the center of thrust is the proper location of the FC so that all motors rotate at pretty much the same speed during a hover? 

another thing is...will the center of thrust (yellow point in my diagram) serve as the CG as well. Should I balance my model so that if I held it under that point, it wont lean forward or backwards...Lastly...can anyone please explain what the center of mass is....and if its important to understand that in the context of building multirotors. I would really appreciate all the help i can get..thank you!

(I also posted this on RCgroups but got no reply, sorry for reposting but im just looking for answers...thanks guys, )

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