Maxum hull materials question

[LexiP]

Hi,

I read on this forum that Maxum used solid fiberglass under the waterline, but today I found this article https://www.mby.com/news/boat-sinks-...r-humber-18794 and I do see marine plywood everywhere.

Can someone advise me on what exactly was used in the hull?

I have an issue with the hull which I dismissed as gelcoat problem initially, but yesterday someone rang an alarm bell for me that the issue is most likely a much worse problem with the underlying structure.

I would appreciate any advice.




Best wishes,
L

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[mmwjr]

The Hull is pure fiberglass with an outer gelcoat. The transom has a wood core laminated into the glass to handle the engine stresses. The hull stiffing stringers and bulkheads are also wood core laminated to provide strength. This type of construction is used by almost every boat manufacturer except some new models may use a non-wood core such as a structural PVC or other material.

What you have is a stress crack from the hull flexing, I would inspect the structure from the inside. Is this only on one side of the hull?

[LexiP]

Originally Posted by mmwjr

Is this only on one side of the hull?

Yes.

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[mmwjr]

Originally Posted by LexiP

Yes.

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Have a fiberglass person look at to get their opinion.

[LexiP]

Originally Posted by mmwjr

Have a fiberglass person look at to get their opinion.

One person will look at her Thursday and another one Friday.

Do not buy a boat without survey even if she is dirt cheap. [emoji53][emoji53][emoji53]

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[mmwjr]

Originally Posted by LexiP

One person will look at her Thursday and another one Friday.

Do not buy a boat without survey even if she is dirt cheap. [emoji53][emoji53][emoji53]

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That’s always been my advice as well as a sea trail is a must.

[LexiP]

Originally Posted by LexiP

Yes.

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No. That is actually a No. Similar pattern of the damage is on the starboard side in a symmetrically very similar place. The same 3 hairline cracks in the gelcoat. Seems like the boat was slightly hit when loading or unloading by a lift or something like that.

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[mmwjr]

Originally Posted by LexiP

No. That is actually a No. Similar pattern of the damage is on the starboard side in a symmetrically very similar place. The same 3 hairline cracks in the gelcoat. Seems like the boat was slightly hit when loading or unloading by a lift or something like that.

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It may have been picked up with the sling strap in the wrong place. My boat has stickers for where to place straps.

[LexiP]

Originally Posted by mmwjr

It may have been picked up with the sling strap in the wrong place. My boat has stickers for where to place straps.

Do you think you could snap a few pictures? It is a great idea to put some stickers as a guide.

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[mmwjr]

Originally Posted by LexiP

Do you think you could snap a few pictures? It is a great idea to put some stickers as a guide.

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Yup I can do that.

[jparsons121]

Originally Posted by LexiP

No. That is actually a No. Similar pattern of the damage is on the starboard side in a symmetrically very similar place. The same 3 hairline cracks in the gelcoat. Seems like the boat was slightly hit when loading or unloading by a lift or something like that.

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Were there tie downs on the stern to the trailer when yoU picked it up?
I ask because I’ve seen that type of stress crack on boats that; 1) don’t have the trailer adjusted to provide support at the proper places and b) weren’t tied down at the transom. Bouncing around on the trailer can stress the hull until it cracks (more so on roller trailers than bunks)

Visualize a fat guy jumping on the end of a fiberglass diving board.

[mmwjr]

Originally Posted by mmwjr

Yup I can do that.

Well I was wrong, my boat doesn’t have the sling lift labels I was mixed up with my friends 2700.