I must be going senile Tim! I'd looked at the info board photo for ages and I was convinced it read 6 tons! I should have looked more carefully.
Good point about the need to lash the carriages down in rough seas. I can't see anything like ring bolts in the deck to fasten tiedowns to. I wonder if that long hank of rope on the side of the 12 pounder is that long so it coule be unhooked and hooked to the hull ringbolt on the opposite side of the ship? that would stop the cannon punching through the side of the ship
but would mean the gundecks would be covered in ropes at just the right height to trip over. Perhaps that wouldn't matter so much during a storm as the crew would mostly be on deck or up in the
rigging working the sails rather than serving the guns.
The camera I used is pretty good on auto exposure, so the view through the gunports is burnt out but the interior is OK, The worst photos are on the lower decks, which are pretty dark, so the aperture and ASA were cranked up to maximum.
Pete