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

Carsten/Steve,

Purpose built "low" rpm motors are hard to come by. They are heavier and more expensive. Check out Bellmarine. 

Electric motors can be as beastly or gentle as you desire. Pretty much any controller on the market can be programmed for ramp speed, torque, fwd to rev delay/speed, etc. Can also be programmed to not "start" in "gear" or on high throttle for extra safety. 

Matt Foley

Sunlight Conversions 

1-201-914-0466

Sunlightconversions.com

Instagram:sunlightconversions

WeChat: Mattymoonshine

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On May 6, 2021, at 10:17 AM, Steven Chmura <chmura.steve@gmail.com> wrote:



I'm looking at doing the same conversion. I have the 120s with a couple tired VP D2-40s. My concern was the increased immediate load vs the ramped up torque via the ICE. Would love to get it installed by end of year!

On Thu, May 6, 2021 at 9:32 AM Carsten via groups.io <Carstensemail=yahoo.com@groups.io> wrote:

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