Quote:
Originally Posted by office888
Aluminum can crack and is a lot less forgiving than fiberglass in someways. Gelcoat is easy to fix, aluminum is not...
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So you can have:
* a metal hull that if it gets scraped, dented and generally starts to look like a baboons arse will usually still "function" without the actual integrity of the material being substantially affected. If you pound it hard enough it will split/crack.
* a GRP hull that WILL get scraped, chipped, and eventually holed. That once the gel is breached will let water into to resin mat and deteriorate the matting. If you pound it hard enough it will split / crack.
Mmmm...
You can have:
* a metal hull that can be patched up with temporary fillers if you needed to as a "get you home" fix. That to fix "properly" will need welded. That you can weld in any air temperature (OP is in Canada - I gather it gets chilly up there). That once its welded is ready to go - no curing, sanding, fairing needed to be usable. (You can fair it later for efficiency if you want). Welding will be more "risky" - need to avoid the tubes and the electrics (and the petrol).
* a GRP hull that is fixable, but takes multiple layers of resin & mat and then gel and lots of sanding etc to make a decent job of it. Can't be used while you are repairing it. Ideally needs >10C to work on, certainly > 5C.
But don't be tempted by that Metal hull just because I'm making it sound good... after all Office888 supplies GRP boats - so he must be right (or perhaps biased)
You can have:
* A lightweight hull that has lower engine power requirements, Lower engine power that means its both cheaper to engine and cheaper to run
* A fibreglass hull that means you can hang a bigger engine on the back so that all your mates can comment on the number of horses you have compared to others.
That said... the real questions you should be asking:
* How robust is a metal hull against the beaches you want to run up?
* Resale values down the line
* Is the hull shape right. The Highfield isn't a bad hullshape. But is it the RIGHT hull shape for your use.