Yup. For the bonus effect, Giorgio will use his strength and the rope you trailed to pull himself over to the galley, as if you shared successes with him (he actually doesn't have any athletics, funnily enough).
Ferran knows this galley is a Brigantine. From Wikipedia:
The Mediterranean brigantine was a small fast ship, sail- and oar-driven, it was square rigged on two masts and had between eight and twelve oars on each side. It was used both as an escort and a transport, Venetian brigantines were about 20 metres long and 3 metres wide. Its speed, maneuverability and ease of handling made it a favorite of Mediterranean pirates. Its name is derived from the Italian word brigantino, which in turn is derived from brigante "brigand". Other than in names, this vessel has no relation to the later brigantines developed in Northern Europe.
And some images:
The modern ones don't have any oars, but they come out from inside the lower deck. You can see the circles on the black and white diagram.