Converting our 41 feet sailboat to electric propulsion.

Hi Everybody,
I’m think about converting our 41 feet (32 waterline) sailboat to electric propulsion.
Currently there is a Perkins 4108 in place with a power rating of 36 kw.
Below is a graphic for the power requirements for our type of boat at a given speed.
My current use of the diesel is that I don’t go over 2500rpm what results in 5.5 knots (calm waters).
According to the chart below this brings me to a power requirement of a little less then 5kw.
If I would install a 10kw electric that would still give me some reserve to reach more power on the prop for whatever reason.
E.g. full throttle would bring to aprox 6.6 knots in calm waters.
As you can see the power requirement to reach hull speed are enormous. This is never my goal and if I like to reach hull speed I do that with the sails or stick with the mentioned speed if there is not enough wind.
Of course I could go with higher power motor but then charging off grid, planned 48v system, is a lot more complicated in regards to reach higher voltage like 72v which you would need for higher power motors.
What are your opinions?

Electric sailboats
0 0 votes
Article Rating
Subscribe
Notify of
guest

1 Comment
Oldest
Newest Most Voted
Inline Feedbacks
View all comments

Categories

FIND YOUR DREAM BOAT

Jeanneau Sun Odyssey 42. 2 for sale in Montenegro
Jeanneau Sun Odyssey 43 for sale in Montenegro
Classic sailboat Dufour 29 for sale in Lefkada, Greece
Sessa Oyster 20 + Yamaha 200F + boat trailer for sale in Greece

Questions

Ask your question

Name
Fill out this field
Email
Please enter a valid email address.
Photo
Fill out this field
Title
Fill out this field
Fill out this field

Crew Connection

Add

Name
Fill out this field
Email
Please enter a valid email address.
Photo
Fill out this field
Title
Fill out this field
Fill out this field

Articles

Deck saloon sailboats
Articles

Deck saloon sailboats

What is a deck saloon sailboats? A deck saloon sailboat is a type of sailboat that features an additional indoor…