2004 190 NANTUCKET: Setting Bunk Separation on Boat Lift

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granolaelf
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2004 190 NANTUCKET: Setting Bunk Separation on Boat Lift

Postby granolaelf » Tue Jan 25, 2022 2:20 pm

For a 2004 [190] NANTUCKET, what separation should be used between bunks for a boat lift?

The bunks on the trailer on which the boat sits now are about 32-inches apart.

BACKSTORY: I have recently become a 2004 Nantucket owner. As I wait for spring in Virginia I am trying to set-up my lift properly for my new boat.

[Moderator's note: this thread is moved to THE GAM forum from INTRODUCTION TO THE FORUM SOFTWARE forum. The INTRODUCTION TO THE FORUM SOFTWARE forum is not a boating forum. Also, please use the model designator that informs the boat length, thus 190 NANTUCKET in preference to just NANTUCKET.]

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Phil T
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Re: 2004 190 NANTUCKET: Setting Bunk Separation on Boat Lift

Postby Phil T » Tue Jan 25, 2022 2:27 pm

Start with the bunks set at 1-1/2-feet off the center line at the transom.

I presume you are using angled 2 x 6 or 4 x 6 on the flat.

To set the bunk angle, determine the angle of the keel at the transom with a level.

I know a guy with a 190 Nanucket (190 Outrage) on a lift so if you need more details, let me know and I will reach out to him.
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granolaelf
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Re: 2005 190 Nantucket Lift Adjustments

Postby granolaelf » Tue Jan 25, 2022 7:05 pm

Thanks Phil. I am using bunks made with twin 2 x 6 lumber, so they are really 4 x 6 lumber.

jimh
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Re: 2004 190 NANTUCKET: Setting Bunk Separation on Boat Lift

Postby jimh » Wed Jan 26, 2022 9:16 am

granolaelf wrote:The bunks on the trailer on which the boat sits now are about 32-inches apart.
That is another way of saying spaced 1-foot 4-inches from the keel centerline.

Phil T wrote:Start with the bunks set at 1-feet 6-inches off the centerline at the transom.
That is another way of saying 36-inches apart.

Generally with a bunk-type support for a Boston Whaler Unibond hull, the bunks should be close to the keel, but on a lift that might not give you the proper lateral stability.

I am not familiar with the 190 NANTUCKET hull. If it has the classic style vestigial runners, wide bunks are usually set just inside those hull strakes, but watch out for crushing any through-hull fittings.

granolaelf wrote:I am using bunks made with twin 2 x 6 lumber, so they are really 4 x 6 lumber.
Which face of the lumber bears against the hull?

granolaelf
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Re: 2004 190 NANTUCKET: Setting Bunk Separation on Boat Lift

Postby granolaelf » Wed Jan 26, 2022 1:27 pm

Thanks Jim! The hull is pretty much identical to an Outrage I think.

Masbama
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Re: 2004 190 NANTUCKET: Setting Bunk Separation on Boat Lift

Postby Masbama » Wed Jan 26, 2022 10:43 pm

If you have the original trailer you could use the measurement of the two bunks from the keel as a starting point.