[MHml] outboard gearing dieselelectric drives

[Alan Christoffersen]

Here is another one -a 50 footer with a Fischer Panda generator.

See: 
http://fp01.fischerpanda.de/public/FPProspe.nsf/DD35A056406980ECC12571D1  
0047CABC/$File/newsletter_02_deu.pdf  go to page 15.INteresting pictures 
also. Engines weigh only 36 kgs each!

Or else here is a short explanation:

Engine
The catamaran is operated by a diesel-power engine. The perfectly enclosed 
in a capsule diesel generator (noise level 48dB) is situated in a room 
under the mast (the weight is where it is to be). This generator operates 2 
powerful engines with a three-phase power located under the floor of the 
stern hull. Weight of each element 36 Kg!
The priority of the diesel-power engine: almost noiseless engine sailing. 
The generator is inside and outside it can be heard only of one 
concentrates on that noise. Great efficiency of the engines due to the 
considerable higher revolving moment. More power against the waives and the 
wind! No transmissions - for that reason a non-stage and noiseless 
transition to reverse motion!
A lack of engine vibrations (generator and electric engine) during the 
voyage with started engine.
Multipurpose use - the electric unit is used for feeding the deck 
(Watermaker, air-conditioner etc.).
A comparatively light engines in the delicate to load stern of the 
catamaran - The weight of the generator (the main engine) is positioned in 
the center of the boat. The generator runs always with optimal revolutions 
- thus can be ensured prolonged lifetime and the saving of 40% of fuel 
compared to the ordinary diesel engines. A safe future - in several years 
the diesel generator may be substituted by an ecologically safe fuel cell!

The boat is also quite interesting with an A-Mast and forward cockpit,see: 
http://www.bulcat.bg/Bulcat.aspx?pname=styria50


Alan Christoffersen



-----Oprindelig meddelelse-----
Fra:	Alan Christoffersen [SMTP:alan at insatech.com]
Sendt:	13. februar 2007 22:47
Til:	'Informed discussion of multihull issues'
Emne:	Re: [MHml] outboard gearing

Check out the information on a dieselelctric Leopard cat redently launched. 
See:
http://www.cruisersforum.com/forums/f48/r-and-c-electric-leopards-6828.html

There is also a 47 ft Crowther built in Chile with this system. The boat
name is Asanagi, just can't find his website with comments at
present.Initial info and block diagrams can be seen at:
http://www.ossapowerlite.com/customers/alwoplast/alwoplast_47.htm

Best Regards/Med venlig hilsen

Alan Christoffersen


-----Oprindelig meddelelse-----
Fra:	Gary Pearce [SMTP:gary at thepearces.com]
Sendt:	13. februar 2007 21:57
Til:	Informed discussion of multihull issues
Emne:	Re: [MHml] outboard gearing

On Wednesday 14 February 2007 04:15, graeme at kizio.com wrote:
> I think that a lot of the Solomon comments are marketing
> spiel, rather than engineering fact. But I've still not
> heard a good explanation, beyond the above, why smaller
> electrics can replace larger diesels.

This article explains things a little bit although I still do not
entirely "get it"

http://www.ossapowerlite.com/tech_library/fuel_efficiency/fuel_efficienc
y.htm

Of course these guys are selling a system. Then again Nigel Calder sold his 
brand new boat to get the yard to build another exactly the same only with
the OSSA powerlite system so there might just be something worth checking
out
here

Gary
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