Hi Dobbs,
I decided that the gunboat which had the option of firing to the flank would need to be strengthened by baulks of timber to withstand the forces of such a large gun. As I understood it the Galleys and gunboats would close under sail and then fight using the sweeps. If the winds were vey light or if there were a calm this would give the advantage to them completely. I am not sure how fast they could move under sweeps alone. I would imagine the Galleys to be faster than the bluff and weighty gunboats?
Rob.