Repairing a timber mossie
I have just purchased a winter project that has some damage to rear of the port hull (horizontal fracture, mid way up the hull, approx 1 to 2 foot long), the result of being in a collision. It has temporarily been fibre glassed over to stop water ingress. My plan is to strip back the hulls and repaint, however, first I need some suggestions on the best way to effect a repair.

Welcome aboard MTG, Nice to see another mossie in NSW/ACT.
Very unusual to have a horizontal crack in the hull.
How bad is the crack? If its right through I would say toss the hull if its not I would fill the crack with resin, sand back and paint. I got most of my information from Cobden(first try) who organises the glass mossie give him a pm about it.
If you PM your email address there's a person in the nsw mossie association that lives down in the ACT I could possible give you his email address for some advise if you would like.
Im in the process of making a new set of hull out of ply hopefully ready for the NSW state titles.
also have a look at the nsw/act mossie website, we would love for you to jump aboard and help rebuild the nsw association bigger and better than before.
www.nswmossie.com
Cheers
william
nswmossie.com 1635
I have finaly managed to take some photo's of the damage. Also of note, I have had a closer look at the inside of the hulls and there appears to be a manufacturers plaque fibreglassed inside each hull. They are all but unreadeable but I can make out what looks like Carter. Any ideas?
This boat used to race in Victoria under the name GUMP, sail no 1259.
boat used to belong to Cam Lawrence who used to sail at Altona, before that it was owned by Damien Chivelo who also sailed at Altona. Damien got a girlfriend and lost intrest in sailing and the boat sat in the shed at Altona for about 3years before Cam bought it. The hulls were built by Bruce Carter.
with the crack, sand back fiberglass tape grind out the crack and fill with a mixture of epoxy resin and micro ballons.

It is a common type of damage on ply boats, I had a similar crack after falling against hull of trap on my Carter Mossie.
This is how I did my repair and never had any trouble, with damaged area again.
Levelled broken ply area as much as possible, if neccesary run stanley knife through the crack so peices aren't caught on each other.
Using Disc Sander or very careful with Angle Grinder, sand area of crack to depth of fibreglass and filler you are going to apply (generaly at least top veneer of ply), make sure the edges of sanded area taper gradualy to non sanded area.
Then apply fibreglass, when dry sand to slightly below painted surface, this will require removing most of the fibreglass around the edges but should mean no sanding of the actual cracked area. Then fill to level or slighty above painted area and sand back to level and paint. <img src=
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