Electric drive motors for sail craft (mono & multi)

[masalai]

It is getting to that stage where new developments, products and "market prices" can be found at one point.
This parallels BATTERIES at
http://www.boatdesign.net/forums/sho...456#post193456
and hybrid power at
Hybrid power for commercial and recreational boats
Gensets...
http://www.boatdesign.net/forums/sho...525#post193525



Discussion...
http://boatdesign.net/forums/showthread.php?t=9310
Solomon Technologies...
http://boatdesign.net/forums/showthread.php?t=676
Some reference sites
http://boatdesign.net/forums/showpos...6&postcount=10

[masalai]

http://www.africancats.com/ & click on GREEN MOTION Retractable Drive System 31-05-2007 for some neat looking submersible retractable drive info in pdf format...

http://www.asmomarine.com/2005/asmo_uk/01.shtml for the thoosa inboard drive systems end stuff...

http://www.perm-motor.de/pm_e_htm/pr...en_pmg_132.htm for some tech specs from Perm Motor GmbH...
more here:- http://www.perm-motor.de/index_e.html

[masalai]

Other reading, potentially interesting sites include
http://www.fischerpanda.co.uk/electric_propulsion.html
http://www.ossapowerlite.com/
http://www.asmomarine.com/2005/asmo_uk/04.shtml#Q01_12
http://www.sillette.co.uk/elect_saildrives.pdf
http://www.wikipedia.org/wiki/Diesel-electric

http://www.solomontechnologies.com/m_recreational.htm

[Archim]

http://www.lemcoltd.com/ (motors used by ASMO Marine)

http://www.hybrid-marine.co.uk/ (parallel hybrid; co-writers of Niger Calder articles on DE in ProBoat)

http://www.re-e-power.com/

Controllers are not as simple as motors, maybe it would need a separate thread.

JC

[masalai]

Good additions to the database Archim, I also forgot the reference to Africancats, their pdf on "retractable" electric drives has a very good power to weight factor...

[brian eiland]

Don't forget the up and coming 'rim drive motors'
"Interestingly it appears as though the relatively new permanent magnet electric motor technology has driven this new interest in rim-drive propulsion. From Brunvoll," the development of RDT has been triggered by market demand for an increased number of ships where both the main propulsion units and the manouevering thrusters have electric motors with variable speed drives. In this context the RDT offers a number of advantages."

So rim drive propulsion is advancing right along with the thruster development."

http://boatdesign.net/forums/showthread.php?t=9432

There is a really big 'superyacht' that is in design stage and projected to utilize this technology. I'll add a reference to the rim drive discussions soon.

[Javaid Hosany]

Good Post

[masalai]

Here are some images I got from African Cats by email - - Hold the cursor over the image and the motor is 36.5kg with prop... for the 15kw or 10 kw versions?

[masalai]

Oops? and some more?

[masalai]

Pricing and other info as a single page pdf... for the African Cats electric motor

On another topic, - It seems there is progress with new solar panels in 10 years (Queensland University development announced today - I am pleased) Gensets specifically for hybrid power sail (mono & multi)

[brian eiland]

Originally Posted by brian eiland

..There is a really big 'superyacht' that is in design stage and projected to utilize this technology. I'll add a reference to the rim drive discussions soon.

Panamax 'super-ketch' will use rim drives:
http://boatdesign.net/forums/showpos...8&postcount=46

[kistinie]

Hi,

i have taken the 1GM Yanmar engine out of my 36' 2.8Tons trimaran, and won't put it back !

I'm searching for a pod engine i can rotate 90° or more.

I have found theses additionnal sources for engine

http://www.tsltechnology.com/marine/thrusters.htm
http://www.bellmann.nu/?nr=1
http://www.kraeutler.at

and maybe an hubner-braun solution but not digged yet
http://www.boot.de/cipp/md_boot/cust..._01.08%3E.html

As anyone already used such a product (e-pod, Krautler...)
and what about water protection ?
Is oil filling compulsory ?

About brushless controler
http://www.KellyController.com
This seems interresting as they have a water proof low cost solution...but not tested !
Same question, who know more about it ?

thank's for help !

Kind regards

François

[gideon]

Originally Posted by masalai

Here are some images I got from African Cats by email - - Hold the cursor over the image and the motor is 36.5kg with prop... for the 15kw or 10 kw versions?

Hallo Masalai the unit shown of 36.4 kilo complete is 9.6 Kw net with over boost to 13 Kw
we are bringing out units ranging from 8 up to 25 Kw and the weight for the 25 Kw is below 70 kilo.
the weight of the controllers amplifiers are less than 2 kilo

Gideon

[masalai]

Thanks gideon,
The thread is some 16 months old - - - - - apart from kistinie who uses another thread for her project...

My build is well on the road to completion in April 2010 and Torqeedo seems the best option at present (a bit pricey though - but the rapidly increasing value of the AU$ may change that position... (See the second link at the bottom of this post)...

[gideon]

Hallo Masalai, I have a lot of experience with Torqeedo since we are the importers for South Africa and they are ok but not for continues use and to small for your boat in my opinion, 6 KW each side is the minimum but I would advice 8 Kw your cat is nice and light weight but it does have a lot of windage and going upwind will be the problem

Good luck with the build

Gideon