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>> Home > Forum > Boat Specific Chit Chat! > Which motor
Which motor
Author Message
(Chief Petty Officer)

Forum Posts: 9
16th Jul 2018 14:04  
>> Permalink

Could someone advise on which motor to use in a smit amsterdam tug of approx 40 ins long with a 4 blade 3 ins dia. Prop and 4 mm. shaft, I want to run on 12v sealed lead acid battery. I am not going to tow anything but would still like a bit of power.
Cheers. Neil.

(Fleet Admiral!)

Forum Posts: 515
16th Jul 2018 17:16  
>> Permalink

Hi Neil,

I use MFA/ComoDrill Torpedo 500.
On my Tugs and they have enough power!
I use the 2.5:1 g/box at 12 volts.
It gives about 13350 rpm's

Cheers, Ed

"Fair winds calm Seas"
Colin H.
(Fleet Admiral!)

Forum Posts: 461
16th Jul 2018 17:26  
>> Permalink

Hi Neil I have a 49inch tug which uses a 540 motor with 2.5 to 1 reduction box. 3inch 4 blade prop, On 12 volts pushes along nicely and with a 7amp hour battery gives about 2 hours sailing, total sailing weight is 21 kilos.
Cheers Colin.

Fair winds and calm waters,
(Chief Petty Officer)

Forum Posts: 9
16th Jul 2018 18:30  
>> Permalink

Hi Ed and Colin, thanks for your promp replies in helping me decide. Ihad sort of come to the same conclusion but reassurance from experienced sailors is always welcome. Iwill put an order in to cornwall models tomorrow morning.
Cheers. Neil .
Live long and prosper.


Forum Posts: 57
17th Jul 2018 08:02  
>> Permalink

Give Brian a call / he has some very good motors .


That's all right, Mr Ryan. My Morse is so rusty, I could be sending him dimensions on Playmate of the Month.