fd versus sd

[Sweet Dreams]

One important question you should be asking yourself is what kind of water you’ll be running in, how much time you have and what your budget is. If your a weekender and your cruising 60 miles to get where you want to go, have budgeted $$$$! for fuel you probably want a go fast boat. There are some great semi displacement boats out there but they are still pretty pricey to run and you will get that 60 miles in 4-5 hours. I had a FD 27’ boat. Weighed 7 tons. Held 120 gallons of fuel. Cruised at 7 knots and burned a little more than 1 gph. I could go that 60 miles in 8 hours and spend less than 40 dollars on fuel at todays prices and cruise a thousand miles before heading to the fuel dock. I also ran a low rpm diesel and could count on low maintenance costs and thousands of hours of running before overhauls. My wife and I liked to cruise and explore and time wasn’t a factor. Weigh you decisions on what your circumstances are.

 

[Sweet Dreams]

One important question you should be asking yourself is what kind of water you’ll be running in, how much time you have and what your budget is. If your a weekender and your cruising 60 miles to get where you want to go, have budgeted $$$$! for fuel you probably want a go fast boat. There are some great semi displacement boats out there but they are still pretty pricey to run and you will get that 60 miles in 4-5 hours. I had a FD 27’ boat. Weighed 7 tons. Held 120 gallons of fuel. Cruised at 7 knots and burned a little more than 1 gph. I could go that 60 miles in 8 hours and spend less than 40 dollars on fuel at todays prices and cruise a thousand miles before heading to the fuel dock. I also ran a low rpm diesel and could count on low maintenance costs and thousands of hours of running before overhauls. My wife and I liked to cruise and explore and time wasn’t a factor. Weigh you decisions on what your circumstances are.

 

[N4061]

Having owned two FD Nordhavns, one SD Nordhavn and one One H38 and can advise many of the posts above are accurate. A FD boat will be more expensive, likely include back up systems, heavier built and designed for blue water.

I’m not sure I follow the range on H38 at 6 knots. With only 400 gallons you would have to sustain approximately 5MPG. We were concerned making a non stop trip to Cabo from San Diego (900 miles) averaging about 2MPG. Our N40 with 900 gallons had a range just over 2,000 miles.

John

 

[FWT]

Having owned two FD Nordhavns, one SD Nordhavn and one One H38 and can advise many of the posts above are accurate. A FD boat will be more expensive, likely include back up systems, heavier built and designed for blue water.

I’m not sure I follow the range on H38 at 6 knots. With only 400 gallons you would have to sustain approximately 5MPG. We were concerned making a non stop trip to Cabo from San Diego (900 miles) averaging about 2MPG. Our N40 with 900 gallons had a range just over 2,000 miles.

John

John:

The source for the comment is in the link below. Click on the graphs in "Hull Characteristics" and scroll to the relevant chart.

https://www.helmsmantrawlers.com/about-helmsman-trawlers/

 

[Art]

Originally Posted by N4061 View Post
Having owned two FD Nordhavns, one SD Nordhavn and one One H38 and can advise many of the posts above are accurate. A FD boat will be more expensive, likely include back up systems, heavier built and designed for blue water.

I’m not sure I follow the range on H38 at 6 knots. With only 400 gallons you would have to sustain approximately 5MPG. We were concerned making a non stop trip to Cabo from San Diego (900 miles) averaging about 2MPG. Our N40 with 900 gallons had a range just over 2,000 miles.

John

John:

The source for the comment is in the link below. Click on the graphs in "Hull Characteristics" and scroll to the relevant chart.

https://www.helmsmantrawlers.com/about-helmsman-trawlers/

Seems to be the difference between optimum mfg. conditions and real-life boat owner doings.

Many a slip betwixt the cup and the lip!

 

[FWT]

Seems to be the difference between optimum mfg. conditions and real-life boat owner doings.

Many a slip betwixt the cup and the lip!

Yep, obviously. But not far off of what I have seen owners report. It doesn't account for a foul bottom, heavy load, etc. But also as we all know if one is sensitive to burn rate one has the option to throttle back.

 

[NEtrawler58]

Cruising speed: FD are faster in my experience.

Not sure what this means....

 

[ScottC]

Not sure what this means....

+1