Kevin.S wrote: I don't know of any NZ aly boat builders who glue hulls together though and it was a glued joint that failed on that boat. |
OneWayTraffic wrote: I think we can all agree that the macs would be better with a much thicker and stronger transom plate. Plastic is flexible and the flexing could fatigue the aluminum over time. Then when it gives way the plastic can't take the strain by itself. |
MikeAqua wrote:
Mussel floats are made the same way as mac boat, smart wave etc - rotomoulded polyethelene. If you know your floats ... in the Marlborough Sounds you can still spot floats that were made in the 1980s and 1990s. If you don't break them, they last 20 years in UV 365 days a year with zero maintenance. |
lemmy wrote: Bolt an outboard on to a mussel float drive it for 5 years through choppy conditions and see how long it lasts. |
MikeAqua wrote: Anyone been in a 5.7M Macboat? |
MikeAqua wrote:
Pouring reinforcing resin into transoms on old fibreglass boats seems to be a well-used technique. I wonder if something similar could be done with roto-moulded boats? The transom is two skins of plastic. If you can fill the gap between them with something non compressible , then flexing won't occur. |
OneWayTraffic wrote:
With old fibreglass boats rot setting into the wood is the problem. Best fixed by ripping out the whole transom and rebuilding it from scratch. |
OneWayTraffic wrote: There's a pretty good shot of the transom support on the SW4200 on this link. Was wondering how it compares to the Mac as I haven't examined that part of the 420 close up. |
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