Gentlemen (and Ladies, if applicable),
Many thanks for the advice. I have decide to remove the entire 12mm pad, cutting through the 3mm steel is much easier than attempting 12mm, going out into good clean steel and enlarging the pad size and maybe thickness as well. I will weld to the stringers under the deck and make a flat pad, obviously with a higher raising on the sides where the cambered deck falls away from the horizontal. A single
, angled transverse brace added to the existing under-deck support structure will ensure integrity for the cleats
I have positioned in that area, and welding to the edge of the (galvanised cleaned off) deck steel will avoid any inaccessible voids. Your points on how to set up the cutting are helpful. I will use a wheel cutter
and hand finish near the under-deck supports, building a screen
area around the cutter
, with wet towels etc to reduce spray of rust streak forming bits. I will de-power and disconnect the ship as a precaution and remove the compass
(I hadn't thought of that possibility!).
Once welded, using a MIG, I will do the usual lockdown & prime and paint
etc, and fit a removable sleeve to the through deck hawsepipe hole to allow for periodic inspection
and treatment as required. Hopefully this will make the area secure for at least another 17 years!
Again, many thanks to all of you for your input, but if you see any flaws, or better ways to build this particular mousetrap, please keep it coming.