Early Sea Ray hull construction trechniques - 1987 SR270

War Eagle

Member
Aug 22, 2015
115
Guntersville Alabama
Boat Info
1987 SR 270 Amberjack ... "Seabiscuit"
Engines
Twin Merc I/O's 4 cyl 150 hp (PIA's) Alphas
Re power in process!
Anyone know how SR constructed 270 (27ft) hulls - appears that the bottom (out to the chine) was laid up in a form, then joined at the chine with the sides to make one piece. My concern is the structural integrity of the chine joint if the original fasteners used to hold the bottom and sides to the chine stringer are compromised by corrosion.
 
I am pretty sure the hull was made as one piece. The deck is secured with some type of fasteners and probably adhesive. The wood is what is suspect.
 
The hulls were indeed made as one piece of fiberglass, then they glassed in the internal stringer structure. IF it was built before 1988 they were thick as hell. Then in 88 -90 they used a foam/wafer type material to lighten up the hulls and use less glass. I drilled through the side on and 1986 Sea Ray 250 and it was thick glass, the side of my 88 268....not as thick.
 
I just installed trim tabs on my 1970 hull.

I used a titanium drill bit.

The transom was hard as rock and thick. Tons of dry wood saw dust flew out as I was drilling.

I love old wood based hulls so long as they’re not soaked.

I hate the trend to light weight composite this or that. Makes some boats handle like corks in the water.
 
Thanks guys for the replies. My 270 Amberjack was built in 87. Hull is solid, decks are cored. Working on one soft spot under the helm station, balance of the decks are fine. Boat appears to have been the victim of high level electric fields resulting in corrosion from one end to the other. Embedded fastners along the chine have minor blisters showing thru the gel coat. I think these were just assembly aids, not structural and should be ok. Just wanted a few other opinions before I start the bottom job.
 

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