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.