For some reason or other Revell didn't put "copper sheathing" detail on the Bounty kit - despite the fact that the 1/192 Constitution, released the same year, has it.
Apparently the Revell designers didn't actually do much research. As I mentioned earlier, they followed the wrong set of plans - the one drawn just after the ship was purchased. Actually the situation is a little worse than that. That first set of Admiralty drawings includes "certain contrivances" - including the capstan and the gunports - that were being considered for addition to her. On the original drawings, those "contrivances" are drawn in red and green ink - and the colors don't show up in black-and-white reproductions. Revell included them. So the kit is actually a mixed bag - part Bounty, part Bethia.
Revell was by no means alone in making that mistake. There's an amusing moment in the movie The Bounty. Anthony Hopkins is sitting in his cabin, with a big Admiralty draught of the ship on the bulkhead behind him. It's the wrong drawing - the first one.
The reason for the lack of "copper" under the bilges of the Heller Victory has to do with the limitations of the injection-molding process. (The kit dates from before the days of slide-molding.) If the master had had those raised plates in those positions, it would have been impossible to get the molded plastic parts out of the molds without damage. That problem has always plagued designers of ship kits with sharp turns to their bilges. (Once you know what you're looking for, it's interesting to see how various companies have handled it. If you look closely at the "copper-sheathed" Revell kits, you'll see that the plating detail sort of fades out at the turn of the bilge. The transition is done very skillfully and almost imperceptibly. The "planking" on the Revell Viking ship is especially ingenious that way. Airfix was good at the trick too.)
Another, more old-fashioned (and less time-consuming) approach to the problem of sheathing the Revell Bounty would be to sand off the planking detail below the waterline and represent the copper with paint. That can be done quite effectively - especially if you go for a "weathered," rather than new copper look.
As for sheathing the model with real copper - all I can say is that it wasn't as difficult, or time-consuming, as I expected it to be.
A couple of other points about the Revell hull. Revell left out the hawse pipes. Adding them is just a matter of drilling a couple of holes just above the deck. Revell tells the modeler to tie the two anchors together and drape them over the knee of the head, which obviously is ridiculous. And Revell somehow botched the shape of the knee of the head. That entire part can be replaced easily with plastic sheet. (I think the reason may have had something to do with the fact that the figurehead is too small. I'm not satisfied with the way the figurehead on my model fairs into the knee of the head - but the figurehead is such a superb casting that I didn't have the heart to junk it.)
Youth, talent, hard work, and enthusiasm are no match for old age and treachery.