Thursday, May 6, 2021

Re: [electricboats] One engine down...looking for solutions/suggestions

Seems that saildrive conversions is a recurrent issue here.
Have any of you ever made a conversion to electric on a saildrive ?

I would like a direct driven solution too.
But I need an electro motor optimized for 1600-2200 RPM. Not 5000.
Do any of you know a supplier who can deliver such low rev (optimized) motors ?
Do we have to go to China for this, or are there still qualified suppliers in the West ?

For power rating, my Volvo Penta 100S saildrive is supposed to be supporting a 24 HP diesel.
But the torque, and the torque forces when changing direction (eg. from full forward to full backward) might not be a good cup of tea for the small gear wheels of the lower part, as electric powered motors has so much more torque power.

Please comment :-)



On Tuesday, 4 May 2021, 21:20:25 GMT+8, Timdownes61@gmail.com <timdownes61@gmail.com> wrote:


Hi Flip

I have a similar issue one of my 2002 engines is 35 years old and not got a bright future, rather than a rebuild, an electric motor fitted to the S120C saildrive is my preferred option.  Have you considered using the rear gearbox mount only or building a frame to utilize the 2 diesel mounts as well to handle the lateral force from the rotating prop?

I will be watching your progress with interest. Motor direct coupled to vertical shaft is intriguing

Tim
33ft Imp Catamaran

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