On Aug 1, 5:15 am, "Marc" wrote:
I am building a 60 foot aluminum sailyacht and considering using diesel
electric propulsion with 2 identical diesel enigins of 70 - 100 hp. The
builder is not very experienced in ths field so I am doing some fieldwork
myself .

Anyone with experience in diesel eletric solutions in this size for sailing
yachts?

Cheers.

Marc

The latest CRUISING WORLD magazine has a nice intro to diesel
electric.

July 2007

It is a modern thing I guess. A real cool idea is to always have a
small generator running. And so true cool charter living is
possible. A 500 gallon tank maybe.

My next real boat is to have tanks worthy of fuel resale. I wanted
diesel ballast. Pumped from side to side for heavy weather sailing. A
1000 gallon tank! I just inherested a Peason 26 So I have time to
plan.

If you design around the tanks a good pattern is a center tank 250
gallon and three side tanks each side.

Anyways that is my dream ship idea. REAL COOL chartering. All cool
all the time.

As money goes the cost to move the extra fuel is minimal. Sail
efficiency is like steel rail after the boat goes heavy.
If you have a heavy ship. Wow that is fun making a new small ship.

Except here is my advice.

A single engine to make the cross Atlantic voyage. A second smaller
wing engine with a sail drive. 250 hp for a main.
and then a sixty for the wing. Straight shaft all weather. A good
diesel runs almost underwater. If your electric plans are all weather
without open connection then maybe they compare to direct shafts.

All the time diesel power allows full electric. SO a third diesel a
10Kw Onan suffices.

And lastly. For resale value consideration, what is the correct
auxillary? A new aluminum 60 footer? I would make it a charter
footprint for benefit of resale.

The 60' LWL motor yacht of our design launched last summer has a
conventional 200 HP 6-cyl diesel (it's a purely displacement boat and
doesn't need 200 HP except in emergencies ). If I were starting on it
today I'd certainly take a hard look at the Siemens ELFA boxes with
the idea of installing 2 smaller engines and using only one of them
most of the time. That way the engine(s) would operate at higher load
and be happier.

Dunno why you'd want to do that in a sailboat, though.

Cheers,
Micael Porter

"Marc" wrote:

I am building a 60 foot aluminum sailyacht and considering using diesel
electric propulsion with 2 identical diesel enigins of 70 - 100 hp. The
builder is not very experienced in ths field so I am doing some fieldwork
myself .

Anyone with experience in diesel eletric solutions in this size for sailing
yachts?

Cheers.

Marc




--
Posted via a free Usenet account from http://www.teranews.com

"Michael Porter" wrote in message
...
The 60' LWL motor yacht of our design launched last summer has a
conventional 200 HP 6-cyl diesel (it's a purely displacement boat and
doesn't need 200 HP except in emergencies ).

THANKS! We still have to calculate but expect to end up with 150 to 170 hp.
The yachts displacement should be around 22 to 24 tons metric.

If I were starting on it today I'd certainly take a hard look at the
Siemens ELFA boxes with
GREAT will do for sure!!

the idea of installing 2 smaller engines and using only one of them
most of the time. That way the engine(s) would operate at higher load
and be happier.
Right! Planning on looking into a solution with 2 diesel engines and 2
propellors too. Curieous about the drag (speed loss) due to a second
propellor. And of course it is a saling boat and it is only an auxilary
engine BUT after spending some time in the Med I have the experience that
if you have any type of schedule (even allowing ample spare time) you just
need to motor from time to time.

Cheers Marc

On Fri, 3 Aug 2007 17:39:13 +0200, "Marc" wrote:

I have the experience that
if you have any type of schedule (even allowing ample spare time) you just
need to motor from time to time.

Absolutely right.

You can reduce prop drag to almost zero by using a folding or
feathering prop.

http://www.gori-propeller.dk/

http://www.martec-props.com/

http://www.spw-gmbh.de/eng/index.html

http://www.flexofold.dk/

http://www.autoprop.com/

On Aug 1, 7:15 am, "Marc" wrote:
I am building a 60 foot aluminum sailyacht and considering using diesel
electric propulsion with 2 identical diesel enigins of 70 - 100 hp. The
builder is not very experienced in ths field so I am doing some fieldwork
myself .

Anyone with experience in diesel eletric solutions in this size for sailing
yachts?

Cheers.

Marc

http://www.avanteyachts.com/joomla/i...at_port792.jpg

Joe

On Aug 1, 5:15 am, "Marc" wrote:

I am building a 60 foot aluminum sailyacht and considering using diesel
electric propulsion

Marc

Got to agree with Roger Long. On the other hand ya could go down to
your local rail yard and find the guy who works on locmotives.
Think.............. EMD

Electric Motor Division

Bob

Some interesting reading on Diesel Electric:

Fischer Panda:
http://www.solarnavigator.net/fische...l_electric.htm

Nordhavn:
http://www.nordhavn.com/constr_con/diesel_electric.php4

FAST:
http://www.feys.org/System/our_system.htm

Cruising World:
http://www.cruisingworld.com/article...ID=396&catID=0


"Marc" wrote in message ...
I am building a 60 foot aluminum sailyacht and considering using diesel electric propulsion with 2 identical diesel enigins of 70 -
100 hp. The builder is not very experienced in ths field so I am doing some fieldwork myself .

Anyone with experience in diesel eletric solutions in this size for sailing yachts?

Cheers.

Marc

THANKS!


"Harbin Osteen" wrote in message
...
Some interesting reading on Diesel Electric:

Fischer Panda:
http://www.solarnavigator.net/fische...l_electric.htm

Nordhavn:
http://www.nordhavn.com/constr_con/diesel_electric.php4

FAST:
http://www.feys.org/System/our_system.htm

Cruising World:
http://www.cruisingworld.com/article...ID=396&catID=0


"Marc" wrote in message
...
I am building a 60 foot aluminum sailyacht and considering using diesel
electric propulsion with 2 identical diesel enigins of 70 - 100 hp. The
builder is not very experienced in ths field so I am doing some fieldwork
myself .

Anyone with experience in diesel eletric solutions in this size for
sailing yachts?

Cheers.

Marc