Velco

If the batteries are 6S, 8S or 10S is irrelevant, what actually gives a measure of the amount of "fuel" on board are the Wh or Watt hours. Not to complicate now too much lets say that

6S x 5000 = 8S x 3750 = 10S x 3000

So in theory there is the same amount of stored energy (and weight!) with either of the 3 combinations, but it is always better to have more V and less A because of the better efficiency, therefore 10S 3000mAh is the winner here.

But theory is one thing, therefore an adequate motor with low kV and adequate batteries are needed to really have a winner combo on 10S. On my Wind 110 I had successfully used AXI 5320/28 (249 kV) on 10S (Rhino 4900) and 18x12 prop. Because of the relatively low clearance (low stock gear) I had to use that motor as that was the max prop Wind 110 would take without having to change the gear. On the negative side I was at 4,4kg because of the heavy batteries, some 300g above the ideal weight for Wind 110.

On the model with adequate clearance I would rather use AXI 5325/34 (206 kV) and 20x13 prop together with a light 10S battery pack, such as HK Zippy Compact 5S 4000mAh 25C which are only 480g each (I have them so I know), some 145g per pack less than Rhinos 4900!

Hope this helps,

Velco