Construction Thread for Custom 45' Cruising Powercat

[Boatguy30]

This certainly looks like a $$$ " if you have to ask" deal.

Would be interested to know elapsed time of build?

[Capt Hugh Wilde]

Originally Posted by Boatguy30

This certainly looks like a $$$ " if you have to ask" deal.

Would be interested to know elapsed time of build?

It has been under construction for alittle over 3 years, but there has never been a very big crew on her, usually 2 to 3 people, and she was all the building wanted. With a larger building you could have built both hulls at once and prefabbed more of her ahead of time.
Then there is the added plus of having built her and knowing the ins and outs, with a larger building and a crew of 4 to 5, she would be a 2 year project.

[Capt Hugh Wilde]

Originally Posted by belizesailor

Interesting.

Est GPH at reasonable cruising RPM?

Is this a one off or do you plan additional builds?

Est cost?

Fuel burn of 3.5 gals an hour is what has been estimated at 11 knots.

She is a one off, but we have the design and would build another. The topsides could be changed, but the hulls are the hard part and their design is set.

Cost would depend on level of finish, but for one like this, with the same equipment, would run around 750K-800k.

[Capt Hugh Wilde]

[Capt Hugh Wilde]

[captain58sailin]

Looks like a very nice unit. It did look like the engine compartments were kind of tight. Is there room to get around the engine for repairs, oil changes?
Thanks.

[Capt Hugh Wilde]

Originally Posted by captain58sailin

Looks like a very nice unit. It did look like the engine compartments were kind of tight. Is there room to get around the engine for repairs, oil changes?
Thanks.

They are tight but there is access to the front and back of the engines and you can reach everything from there. The oil filters are remote, as is the oil pump out line.

With a beam to length ratio of 13 to 1, it gets kinda narrow in the hulls, but that is what makes her perform.

[captain58sailin]

Thanks for your comeback.

[nimblemotors]

I've seen a number of these hull designs with a significant 'step' in them above the waterline. While this increases efficiency, my understanding is that it creates significant slapping on the hulls in anything but calm waters.
As sleeping quarters are right next to this slap area, it can be disturbing.

Thanks for sharing. I agree building a second one is always a LOT faster to build.
3 years is pretty quick for such a big boat. Is this your boat, or for a customer?

[Capt Hugh Wilde]

Originally Posted by nimblemotors

I've seen a number of these hull designs with a significant 'step' in them above the waterline. While this increases efficiency, my understanding is that it creates significant slapping on the hulls in anything but calm waters.
As sleeping quarters are right next to this slap area, it can be disturbing.

Thanks for sharing. I agree building a second one is always a LOT faster to build.
3 years is pretty quick for such a big boat. Is this your boat, or for a customer?

It is for a customer.
If you notice, the transition to the side is curved for a soft transition without a flat for the water to slap on.
It's purpose is to put more room in the hulls above the waterline.

With that and the core construction I don't believe that noise from the water will be much of an issue.

[Capt Hugh Wilde]

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[Capt Hugh Wilde]

Here are pictures of the built in fuel and water tanks and the built in holding tank. They are built with glass and epoxy and the fuel and water tanks have cleanout hatches with gaskets.





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[Capt Hugh Wilde]

[Capt Hugh Wilde]

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[Capt Hugh Wilde]

Today I have been building the fuel distribution panels.

First is a two way valve to chose fuel run or prime. The prime line goes to an electric fuel pump.
Both the run line and prime line join going into an RCI filterless fuel purifier before going to a groco valve that will allow the choice of #1 racor 500, #2 racor 500, both or off.
After that to the flow scan sensor and the engine.
I should have pictures tomorrow.