Fibreglass hull extension

G'day, I intend on using vinyle ester to bite to the original glass, then poly on-top of that. The boats to be trailered. The problem with going wider here is the towing laws and regulations, it just becomes a logistical nightmare.

I'll attach some pictures of the build as I get time.

 

In what condition were the stringers ?

 

Yep there so much easier to use,, I probably would still use stainless bolts when glass vertically up the old transom except of course they'll corrode. It's better to drill similar width holes and make roving plugs that splay out each side of the hole and glass matt pads over each side. like big washers either side of a nut and bolt. Somewhere like that I might use epoxy where it doesn't need to be finished perfectly but strength is a concern. Anyway good luck.

 

Terrible. Core was mud.

 

I plan on cutting the complete transom off and extending. Not sure where I could then use the bolts? Or are we talkgta of two different ideas.

Cbeers.

 

After I wrote that I thought you may be thinking that, your looking at it so you can see the strength in the structure. I would maybe put a step through in the old transom, but cutting out a bulkhead when adding an extra 25% doesn't sound right to me. Plus it can be used to house eskies etc. but you are actually looking at it I'm not. Which isn't a particularly useful comment , sorry.

 

I saw one of these old boats by the roadside with a sale sign on it, fairly recently, the waves in the bottom were such, that it was obvious the internals were shot. I can't think of too many hulls in the size range from that era I'd say worth rebuilding, the Formula 233 and Haines 773 would just about pull it up, in the monohulls.

 

This was the basis of the hull lay up, the reason I ground it all out.