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Hi, I have recently purchased a Precedent KD Perkasa kit 37" and would like to power it with a brushless motor, but being an Old F**t I know nothing at all about Brushless Motors or their relevant speed controllers or battery power. So I would like your input on what exactly I need, obviously I would like the model to have a fair turn of speed. Thanking you in anticipation of your much needed assistance. Little Charlie
Thank you Rowan it has been very useful, will eventually post how I get on, not as simple as one thinks, never mind onwards and upwards as they say................once again thank you for your response Little Charlie
Hi Charlie I have tested my 37" Perkasa with a brushless 3639-1100kv motor from Hobbyking, a 60A ESC, 3S 5800MAH Lipo battery and 37mm 3 blade CNC prop. It's dam fast !!!! https://www.youtube.com/watch?v=9fddqnbnlrQ Canabus
I have a number of brushless motors and esc' from my model airplane days..... I model slow boats like tugs and just assumed that they would be too fast for these boats, but I don't know if this is true or not....
Well Canabus, certainly fast! Very envious of seeing open water too. If was not obsessed with building to scale, looks like your power train combination would be ideal. Once the water is Canada regains liquid form will be returning to my Brave B. Am confident it will now be much better, although potentially still overpowered. Have various methods available for controlling the performance in mind now. However, if nothing really works could, with some minor modifications fit a powertrain rather like yours. More food for though!
Hi RHBaker I had the motor ,so I used it. The sister motor is a 3639-750kv 600Watts 8325 rpm on 3S. The 3639-1100kv 800Watts 12210 rpm on 3S. Next up the 3648-1450kv 1600Watts 16095 rpm on 3S. All are straight bolt replacement, but, the 3648 requires a 100Amp ESC.
The 3639 750kv would be the better motor for the boat to get scale speed.