Powerboat Fuel Efficiency

[fpjeepy05]

a friend just sent me this listing... https://miami.craigslist.org/pbc/boa/d/ ... 41647.html
Different, but similar.

[fallguy1000]

a friend just sent me this listing... https://miami.craigslist.org/pbc/boa/d/ ... 41647.html
Different, but similar.

That boat isn't a commuter.

[jacquesmm]

If I can't find a set of plans that I can modify, I will likely design it myself and then pay a designer to review for errors.

That's a big job but there is another solution, something I have done for other builders: fora fee, I can calculate the scantlings for an Atkins design. You get the plans from Atkins, I do the calculations.

[fpjeepy05]

That boat isn't a commuter.

Agreed. But it does get 13mpg

[fpjeepy05]

If I can't find a set of plans that I can modify, I will likely design it myself and then pay a designer to review for errors.

That's a big job but there is another solution, something I have done for other builders: fora fee, I can calculate the scantlings for an Atkins design. You get the plans from Atkins, I do the calculations.

The problem is, there isn't an Atkins design I would like to build. I don't mind paying to get some help, but to make matters more complicated, I am leaning towards constructing from aluminum.

[Chuck H]

Fast Launch 26?

[fallguy1000]

Sadly all boats are tradeoffs.

There is no luxury in the economy cruiser. This is why the statement of requirements is so essential.

For example, the boat pictured would not be suitable for most commuter boats. The pax would be soaked, and the vessel at risk in 6 footers.

Diesel inboards are often touted as the ideal, but they are expensive and more difficult to build.

The Nina 22 is probably my favorite for a commuter; although the downside is speed. The Nina 22 would put that skiff picture to shame. I don't know the fuel economy, but I would guess 6-8mpg at the right throttle/speed tradeoff.

And the Nina would be ultra-quiet, too. Pax could have a conversation in low tones in a low head cuddy and the helm could probably be managed inside with a remote, but I could be wrong.

Not sure if you could do a hybrid ally and foam build, but ally would be a fast hull and then you would build light for any cabin/seating area.

[fpjeepy05]

Fast Launch 26?

I like the fast launch 26. I was hoping to get similar numbers speed wise with a 30x5’ it sounds very possible if the fast launch can do it with 26x8’ I would like to have a smaller flat on the bottom with some deadrise to accompany it. Additionally I would like to have a walkthrough-cabin with an open bow instead of an express style. This will likely be difficult with the narrower beam. Likely necessitating the engine below the sole. Which will be tough.

[fpjeepy05]

Sadly all boats are tradeoffs.

There is no luxury in the economy cruiser. This is why the statement of requirements is so essential.

For example, the boat pictured would not be suitable for most commuter boats. The pax would be soaked, and the vessel at risk in 6 footers.

Diesel inboards are often touted as the ideal, but they are expensive and more difficult to build.

The Nina 22 is probably my favorite for a commuter; although the downside is speed. The Nina 22 would put that skiff picture to shame. I don't know the fuel economy, but I would guess 6-8mpg at the right throttle/speed tradeoff.

And the Nina would be ultra-quiet, too. Pax could have a conversation in low tones in a low head cuddy and the helm could probably be managed inside with a remote, but I could be wrong.

Not sure if you could do a hybrid ally and foam build, but ally would be a fast hull and then you would build light for any cabin/seating area.

I am looking at commuter boats because those are the only ones with the fuel economy I am looking for, but I actually plan to use it for fishing.

I agree diesels make the design more difficult, but I think they lend themselves better to getting the proper weight distribution for semi-displacement boats. (LCG further forward.) Also generally they have better fishability do to the open cockpit.

Also I'm thinking longer and narrow than Nina.

[BB Sig]

You asked a similar question on another forum but worded it different here. This cannot be an offshore fishing boat!

Most on the other forum tried to dissuade you and you would not listen. Please don't take the same approach here.