Regarding the galley, a Christian edge at Lepanto was 70 of a prototype ship called the galleas which was an attempt to put galleon firepower on a galley.
Over the long run, the galleas, like the clipper ship, was a doomed concept.
If I'm not mistake the Galleyas (sp?) was pretty much a galley with raised fighting platforms at the fo'csle & poop decks. Works fine for light guns & marines, but not for heavier guns that were on the horizon. Plus that must have made an oar powered vessel very unmanagable in the wind.