Haines Signature - Nexus Hulls

[MikeC90]

Hey folks,

I'm curious as to the design and build process of the Haines Signature Nexus hulls. From what I can see in some of the old videos on youbtube, they are essentially a monocoque, formed by bonding the hull and the Nexus liner, and then foam filling between. In those videos there is no discussion about a stringer system, and I don't see that it would need one (or have space for one) but when I mentioned this to a dealer he reckoned they still have a full stringer system...?

As a side, for those that have been in a traditional Signature (timber stringers, no foam filling) and newer Nexus models, is there a difference to the performance (noise, transmitted vibration etc).

Thanks

[gazza2006au]

Mike i have never been on a quiet boat.

[Ah Me Ting]

Hey folks,

I'm curious as to the design and build process of the Haines Signature Nexus hulls. From what I can see in some of the old videos on youbtube, they are essentially a monocoque, formed by bonding the hull and the Nexus liner, and then foam filling between. In those videos there is no discussion about a stringer system, and I don't see that it would need one (or have space for one) but when I mentioned this to a dealer he reckoned they still have a full stringer system...?

As a side, for those that have been in a traditional Signature (timber stringers, no foam filling) and newer Nexus models, is there a difference to the performance (noise, transmitted vibration etc).

Thanks

This is in the FAQ in their website under the "Are you boats made with wood" heading / question:

For over 50 years we have proven that we have the strongest and most advanced hull design of any trailer boat on the market in Australia today. We use specially designed plywood timber in key structural areas. More superior than any marine-grade timber, the individual layers in our product is treated and protected prior to assembly ensuring no further treatment is needed, even when cut. This strengthens the build quality of our boats, reducing vibration, creating rigidity and acts as an ideal mounting area for components such as electrics. Haines Signature also provides the option of our range of boats being built timber-free. This uses Thermo-lite Board which is a lightweight composite marine-grade product manufactured with cross-linked polymer foam and fibreglass and offers high specific strength and toughness. Our 788SF model is built using Thermo-lite Board, as standard. Any boat manufactured using the optional Thermo-lite Board in place of the standard ply in the build will be subject to a 5+2 year warranty (5 year structural, 2 year parts).


That aside, I think the 'old' YouTube video's don't show the full process / build. And, will have most likely changed over time.

I understand that a fair bit of R&D has gone into their 'process', so info might be a bit 'vague' out in the marketplace / interwebs.

I believe you can do a Factory Tour. Might give you more info / answers or at least be able to talk to them about any questions.

[MikeC90]

Unfortunately their website does not cover the construction method, just some of the materials used (all of their boats still run a ply transom bar the 788). The smaller models (550F and down) are still made in much the same way as my old 540F, with timber stringers, floor etc as far as I can tell. The larger models are built with a Nexus Liner and look completely different in the flesh - these are the ones I'm interested in. I don't care what the stringers are made of, just curious as to whether or not they have them at all.

I suspect their factory tour would only be for those about to drop a deposit on one of their boats but would certainly be interesting!