Tube grade

[kalokeri]

I have a 6.5 ribtec that’s been submerged for 4 months after getting hit by a hurricane and the tubes need replacing. I’m getting quotes in and they are quoting on the basis of using 1300 grade material, is this standard or should I be going for higher density 1800 grade? The ribs being used in the Caribbean as a teaching rib so bumping off the docks a fair bit. Any advice appreciated and expected cost for heavier grade material!

Cheers

[jelwood]

1800 would be overkill in my opinion, if you know it’s gonna get bumped a lot just add another rubbing strake above and below your standard one, or some 3mm cladding at the bow.

[Arctic]

Have you got quotes for both? If not overly expensive, I'd suggest Orca 866 1670 dtex for commercial work. Military spec. boats seem to use 1880 dtex hypalon. Rubbing strakes in the right places will help too.