What size prop for 21'' sport hydro?

[Andris Golts]

Hi all finished putting together my 21'' Miss rock hydro complete hull weights 24 oz powered by a Leopard 2860 4050 kv motor a pair of 2100mah 2s 25c tp lipo's in parallel and 120 amp Seaking esc. What dia prop would be suitable for this set-up? Regards Andris Golts.

[Fluid]

We run slightly larger 2S sport hydros and with 3500 Kv motors we get speeds into the low 40s with m440 props. That prop is probably too large for the 28mm motor. Probably better would be an x435 or y535.




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