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Plans without hull lines

Is it possible to build a boat without hull lines?

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don steadman10/02/2020 18:39:41
3 forum posts

I have aquired some ship plans which have a scale but no hull lines on them. Is there a given formula to get the hull lines from the plan? Thanks

Chris Fellows10/02/2020 19:51:35
725 forum posts
446 photos

In a word no, unless anyone else knows better.

If you have a top and side view and there is a chine with fairly straight sides and bottom to the hull it is pretty easy to draw up the bulkheads/frames.

But as you say it is ship plans this probably isn't the case and there will be compound curves to the hull and no easy reference points to pick up.

I had a similar problem with a future build and overcame the issue by finding a boat with a similar hull shape and also studying photographs of the boat and drawing them out until I was happy with the design.

I haven't used one but there are 3D modelling programs e.g. for model aircraft that make this process easier but you do need some idea of the lines.

It would be useful to see the plans.


Bob Wilson16/02/2020 14:45:19
1674 forum posts
181 photos

If you are talking about ship plans, rather than boat plans, they often have the shapes of the lower decks on the general arrangement plan, and a good idea of the lines can be built up from them. I seldom find lines plans for whatever I want to build, but never have any real problems with figuring the shape out from the GA plan of the lower decks.


east african complete.jpg

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Ray Wood 216/02/2020 20:11:01
2047 forum posts
720 photos

Hi all,

Sadly no further post from Don to give us a clue which ship he has the plans but no lines 😢,

Regards Ray

Bob Wilson16/02/2020 20:54:10
1674 forum posts
181 photos

It does help to have the name of the ship!laugh


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