Hatteras 56 MY fuel consumption at hull speed

[Freeebird]

My experience is 1 gph at 8knts. 10-12 knots fuel burn goes up 50%

He meant to say 1MPG which is what we got running his boat up from Florida. It's also what we got running Sadie's 60MY, and Randy's 58MY, Robby's 53MY and that's what you're going to get with any of the boats you mentioned if you run at hull speed or slightly below.

[Freeebird]

The 53/58s burn about 10gph combined at 9.1 to 9.3 kts hull speed. Go 10 kts and it s going to be close to 20gph. The difference is huge and most people don’t understand it until they have flow meters (regardless of boat or engine, the hydrodynamics don’t change)

The wider beam 54,56 will burn a couple of gallon more because of the extra beam.

No, it won't. We've had this discussion before.

[Freeebird]

Here we go.....

It's a dumb point to argue when I've run all the above on trips of well over 1,000 miles on each.

[Bob Quinn]

If it helps, my 17’-6” beamed, 12V71ti 55C shows about 16GPH at around 9 to 9-1/2 knots per Flo Scans. That’s almost 11MPH for river people.

That bit more 60% ish. hmmmm

[Bob Quinn]

My experience is 1 gph at 8knts. 10-12 knots fuel burn goes up 50%

Thank you
That's not bad! +9 I'm guessing you meant!

[Bob Quinn]

The 53/58s burn about 10gph combined at 9.1 to 9.3 kts hull speed. Go 10 kts and it s going to be close to 20gph. The difference is huge and most people don’t understand it until they have flow meters (regardless of boat or engine, the hydrodynamics don’t change)

The wider beam 54,56 will burn a couple of gallon more because of the extra beam.

That sounds logical, thank you for the input!
Very Interesting phenomenon, I am just learning!
Now how about on French Fry Oil? haha!

[Freeebird]

Thank you
That's not bad! +9 I'm guessing you meant!

Like I said, he meant 1MPG. I ran the boat from Venice, FL to Chattanooga, TN a few years ago when he bought it, and that's what we got.

[Freeebird]

That sounds logical, thank you for the input!
Very Interesting phenomenon, I am just learning!
Now how about on French Fry Oil? haha!

Did you just ask Pascal about French Fries?

I'll concede anything French to him.

[Bob Quinn]

You would think all these numbers would be published by Hatteras. It would be a nice thing to do.
But I suppose they are more concerned with new buyers that are not worried about fuel vs boat cost lol.

[Bob Quinn]

Did you just ask Pascal about French Fries?

I'll concede anything French to him.

I was told …. you can dump anything in LOL French or American fry oil.
Not sure about Shrimp fry oil....