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>> Home > Forum > Electrical Related > motor sizeing
motor sizeing
Author Message

Forum Posts: 22
23rd Sep 2018 17:41  
>> Permalink

Hi chaps jim dogge here, im just about ready to fit out my wave princess with some sort of motor and bits. I have allsorts of outrunners and ESC to match aeroplanes but havent a clue as to where to start. A 1.5 diesel, whats that equivalant too is the weight thrust formula the same for boats. l would prefer to stay with out runners, the cooling aspect is no problem l did it for a living.
a prop size how is that worked out for a boat.

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(Fleet Admiral!)

Forum Posts: 133
24th Sep 2018 06:50  
>> Permalink

Hi Jim
I used a Hobbyking D3548/4 1100kv , a car ESC (hk60A-SL)(electric fan on top for cooling), program card(HK PROG-CARD) and a 40mm 2blade prop(test out the one on the boat first).
Battery a 3s 5800mah 30C Lipo.
This is in my Sea Commander and gives a good turn of speed with a long run time.
ESC set up:- 1 Cutoff Voltage for 3S=10.2 and 4S=13.6
2 Start Power Percent=5%
3 Advance Timing=4
4 Run Mode=2
5 Brake Force=1
6 Drag Brake Force=1
7 Neutral Range=1
8 Initial Brake Force=1
9 Reverse Force=1


Forum Posts: 22
24th Sep 2018 19:51  
>> Permalink

Cheers for the info cannabus just so happens l have most often items you mention will have to get a fan probably got one in amongst the mound of old computer parts my son has.Jim dogge