Prop size?

[Alfa Spirit]

How long does shipping take from AliExpress

Shipping is fast, no problem. I will order 2 props 38mm 3 blades for my Twin Smash Shark, pitch=1,4.

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What motors and esc's are you running for these at what voltage

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What advantages and disadvantages are there between 2 and 3 blade props

[Alfa Spirit]

A 3 blades propeller is better for a heavy boat but the motor must be strong enough and a 3 blades prop is less sensitive to balance.

A 2 blades prop generaly give more speed. The best is making tests.

PS : Tenshock make good and strong CNC propellers ,

http://www.tenshock.com/products/boat-cnc-propeller.html

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Ran the new setup, first 40mm ose prop.
Ran it slow made sure everything was working and first fast run broke prop. Ran home put on the 42mm graupner ran great had some chine walk. Next day same prop adjusted strut to neutral it was down a bit and ran great temps where Luke warm after a 5 minutes of playing.
Today tested the cnc 45mm ran great temps where 101 on motor esc 102 and batteries at 107. Loving it running great no chine walk unless I start hitting my wakes need to get a gps and see what kinda speeds she's getting

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Hit 56 mph today running great on 45mm ran 2 minutes temps at 102 motor n esc batteries 105
Florida water is getting warm quick lake gotta be close to 80