2001 Bertram 510

You are confusing the issue, it is absolutely NOT the weight of bottom paint, it is the surface roughness of the bottom regardless of which boat we are talking about. No need to argue the topic. You would not have 1650 lbs. (or whatever) on a 45' bottom, as you would on the 70', because the build-up amount would be lower proportionally. The build-up on struts/shafts/propellers will impact propeller efficiency and build-up on through-hulls ain't helping either. Once again, it is a hydrodynamic issue......

I have experience with delivering new boats of the same model and have observed a drop off of 1 - 2 knots just depending on which paint roller the application used. The Roller stipple can and will make a difference. You want a hard and smooth bottom, free of any "dimples" for optimum performace.

Golf balls like dimples...

Golf balls like dimples...
I bring it up that way because I remember some article (very long ago), that compared golf ball aerodynamics with bottom paint hydrodynamics.
I remember associate logic, that you can go faster on a ever slightly rippled water surface than a smooth surface. The thought was to captured micro air bubbles between the hull and water. Air has less friction.

In simple reasoning, a lot of tiny paint ripples protruding into the water like little fingers would cause drag,
OR , or induce a turbulent action creating air bubbles.
I always wondered,,,,,?

I used the wrong term in "dimples" should have used the term "pimples"!

But the dimple benefit would never be realized n a SF because there is no way you can get anywere near the rotational speeds of a golf ball, and the frictional forces between air / water are too great.

I do remember way back when Dennis Conner won the America's back in Australia, and they used some type of 3M film applied to their hulls to lower resistance (fractionally), and was curious why that never became a trend, until I realized they had the luxury of hauling out every day and not having to deal with bottom growth.

Enjoy the new boat Vasiliosg!
Hope you have many good fish flop the deck and many good times.
Cheers,
Kafue

Congrats. Its a good hull and a good looking boat.

Send a pic and the specs

Congrats, very nice set-up, should be really fuel efficient with the QSB's. If you can, let's us know what cruise/mpg and top speed you are seeing?

How is Blackwatch doing - I have been waiting to see their 50' model for some time now?

I had the 440 yanmars, no genset, and she topped out at 29 to 30 knots. The hull needs a lot of power to push it as it is narrow - its the trade for a good ride. Getting the trim tabs right makes a big difference.

No secret that most boat companies were flattened by the GFC - a boat/plane is the first toy out when things get tough.

Lots of computing power on per the website! Are you boating or surfing the web from the flybridge?

Scrumpy

I've found that the Raymarine monitors are very good in full daylight conditions and easy to see.