Hi how do i determine prop size relative to a brush less motor and battery ?
and what parameters i have to know for choosing a motor fore a boat?

This is all explained in that sticky above your thread.

Ryan

http://www.rcuniverse.com/forum/m_9069147/tm.htm

Wow that's what i was looking for the last 3 years

It has been there since 2008.

Ryan

well i didn't use any precise explanation when i started boating sorry if i missed the grate post
It is THE INFORMATION to start with

There was suppose to be a wink on the end of my sentence. No need to be sorry.

Ryan