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Old 27-07-2014, 16:46   #46
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Re: It Begins: Converting Cal 2-27 to Electric Propulsion!

Good on ya!

Be very careful what happens next - I started like that... 2 years ago. Now the entire interior is stripped out - LOL
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Old 27-07-2014, 22:06   #47
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Re: It Begins: Converting Cal 2-27 to Electric Propulsion!

Way to get after it GM! Really interested in following your progress here through the completed job.
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Old 28-07-2014, 12:54   #48
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Re: It Begins: Converting Cal 2-27 to Electric Propulsion!

Could the OP list off sites for purchasing all the parts needed? I have a 2-27 and want to do this, as well. Looks great!
Thanks!
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Old 28-07-2014, 15:11   #49
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Re: It begins: converting Cal 2-27 to electric propulsion!

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Originally Posted by mbianka View Post
You could put a mechanical break on the shaft but, I've discovered the beauty of "electrosailing" i.e. just turning the prop with enough amps to eliminate prop drag. You get a nice boost in speed with low energy consumption especially in light winds. As the wind picks up along with boat speed my Thoosa system starts to regen and charge the battery bank. It's a win win either way IMO. Almost as quiet as under sail alone too!
I totally understand what your saying Mike. I got concerned with the report someone @ the electric boat site posted about his electric yacht install & the noise he was getting from the belt when the prop was free wheeling.

I'm hoping Growley Monster follows through with installation the of that reduction drive from electricmotorsports. I'd be good to know what kind of noise it produces. Plus it's only 1/2 a boat buck
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Old 28-07-2014, 16:31   #50
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Re: It Begins: Converting Cal 2-27 to Electric Propulsion!

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Originally Posted by SailerMatt View Post
Could the OP list off sites for purchasing all the parts needed? I have a 2-27 and want to do this, as well. Looks great!
Thanks!
I got controller, meters, throttle, harness, and charger in a kit from Kelly Controllers. $700 something. I think.

Got the 0201014201 motor from either evmotorsports or electricmotorsports, $375 each. Got 2, so I got a spare. But cloudelectric has the 0913 and the 0907 motors dirt cheap on sale. I would go with the 0913 at that price. At low speed it won't draw significantly more current than the, smaller motor, but when you need to power through chop or headwinds, it's there.

Ordered enclosed gearbox, 2:1 from electricmotorsport. Still waiting for that bit. Thunderstruck has a belt drive system, or you can just brew your own with pulleys and hubs from mcmaster. If you do that you also need a thrust bearing, from Glen-L. Or maybe your old transmission can be used?

Batteries I will get from Sams Club. 6v golf cart batteries are the best bang for the buck right now. 232 amp/hour for $86? Way cheaper than half as many 12v 8D batts.
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Old 28-07-2014, 17:03   #51
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Re: It Begins: Converting Cal 2-27 to Electric Propulsion!

I should go read the electric boat thread but...

Has anyone mated an electric motor to a standard yanmar or Volvo saildrive?
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Old 28-07-2014, 17:44   #52
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Re: It Begins: Converting Cal 2-27 to Electric Propulsion!

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I should go read the electric boat thread but...

Has anyone mated an electric motor to a standard yanmar or Volvo saildrive?
That's an interesting idea, and it should work okay.
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Old 28-07-2014, 17:55   #53
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Re: It Begins: Converting Cal 2-27 to Electric Propulsion!

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Originally Posted by Ex-Calif View Post
I should go read the electric boat thread but...

Has anyone mated an electric motor to a standard yanmar or Volvo saildrive?
Something like this?




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Old 28-07-2014, 18:00   #54
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Re: It Begins: Converting Cal 2-27 to Electric Propulsion!

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Amid much splintering of wood, creaking of blocks, and grinding of metal, the A4 came Out of its nest. Rocked it back and forth with pry bars and scrapers, sticking blocks underneath, until it was high enough to slide out into the salon. Then hooked on with main halyard and topping lift led to winch, and spinnaker sheet led aft. Got it up rail high, then pulled it onto the finger pier with a 4 part tackle I rigged last year for mast climbing. Helpers:0. Gotter done myself. Now it's time for a Jim beam break.
Woooohoobubba! You be rockin now! This is gonna be cool! Hope you keep up the energy.
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Old 28-07-2014, 18:11   #55
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Re: It Begins: Converting Cal 2-27 to Electric Propulsion!

Thanks Bob!

Sorta defeats the purpose of getting the diesel motor out but...

I was thinking along the lines of using the Volvo bell housing to fabricate an adapter and use the electric motor as direct drive.

Without an engine the only thing stabilizing the saildrive is the aft mount and bellows. It would need to be tied in/down at the front end some how.
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Old 28-07-2014, 18:30   #56
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Re: It Begins: Converting Cal 2-27 to Electric Propulsion!

Thanks Bob,

Sort of defeats the purpose of getting the diesel engine out but...

I was sorta thinking using the Vovlo bellhousing to adapt the electric motor. The saildrive needs to be supported at the front end as well.

More along the lines of the attached.

Also here is an outfit supplying adaptable motors - Hmmm...

http://www.maritime-executive.com/pr...ves-2014-05-16
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Old 29-07-2014, 06:47   #57
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Re: It Begins: Converting Cal 2-27 to Electric Propulsion!

Looking good Growley! You are certainly a man on a mission!
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Old 29-07-2014, 08:52   #58
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Re: It Begins: Converting Cal 2-27 to Electric Propulsion!

I'm looking forward to see how your project turns out!
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Old 30-07-2014, 13:09   #59
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Re: It Begins: Converting Cal 2-27 to Electric Propulsion!

Growley, I noticed this on the EM website regarding the ME 1305/0907 PMAC motors:

Quote:
These patented axial flux motors are designed to work with sinusoidal (sine wave) controllers such as the Sevcon Gen4. NOTE: We do not recommend the use of square wave controllers with these motors. This may reduce durability and efficiency of the motor, as well as void it's warranty.
Which I think may explain the noise issue, as many controllers such as mine are square wave controllers. I am pretty certain the kelly controllers are also square wave. Just FYI.
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Old 30-07-2014, 15:40   #60
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Re: It Begins: Converting Cal 2-27 to Electric Propulsion!

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Growley, I noticed this on the EM website regarding the ME 1305/0907 PMAC motors:



Which I think may explain the noise issue, as many controllers such as mine are square wave controllers. I am pretty certain the kelly controllers are also square wave. Just FYI.
Indeed they are square wave controllers, and you may be right about the noise. Kelly does insist that their KBL controllers work just fine tho, and lots of users will vouch for that. I do believe tho, that the square wave controllers are slightly more efficient, using the power mosfets. A sine wave controller, unless I am wrong, would use SCR devices for output, not sure. Anyway for now at least, I am using a Kelly.
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