The Cruizer class of brig sloops, the largest class of warships ever built in the age of sail carried 16 32pdr carronades. And they were only 100 foot long. The carronade, although of large calibre was very short and recoiled on a slide (some were fitted with non-recoiling mountings). Nearly all RN sloops buit at this time were similar, as indeed were American sloops, such as Hornet and Argus.

Schooners were built with even lighter scantings but could manage 12 or 18 pdr carronades. I only have details of American privateers captured and taken into RN service were smaller than LYNX (between 80 and 100 feet) and carried mostly 12s, usually about of them.

The idea of a privateer schooner is to captured unarmed or lightly armed merchant ships, and avoid warships. Any fighting was done as closely as possible, usually by boarding - privateers had much larger crews than merchant vessels. And they didn't want to pound their opponent as it reduced the value of their capture.

I suppose we'll know for sure if the schooner gets built.

Les