6s Cheetah prop options

[larryrose11]

Hello all,
Im building my first Cheetah. It will have a Neu 1520 (1577 KV) motor, T180, running on 6S. Im blue printing the hull, to flatten out the last step to help it not run wet. I plan on running a dual cooling setup.
Im not racing, but I would like to go 60+ MPH.

Because I cant just use some carbon props without them breaking, What is a good choice to start?
Is a CNC 5014 (looks like a X450) a good place to start, or is that too big?

Other member have had good results with 50 mm prop:

with my Neu 1527/1Y 1250Kv I can get well into the 60's for 4 minute offshore runs on 50-52mm props can go even bigger or pitch up the prop for more speed.

Can I just put on larger and larger props till temps become a problem? What is the upper limit on prop size for this hull?

[Fluid]

You will note that the quote you posted is for a motor with a Kv of 1250. That's a big difference from your 1577Kv motor (7000 rpm), the 1250 motor can deliver more torque and turn a bigger prop. My suggestion in the Octura line would be an x645 or x646. Those have the potential to push the cat to 60+ mph but should help to keep temps in check. A 50mm prop might be too much depending on how you set up the hull, or it might work. Try the smaller props first.



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