I’ve never heard of a “gallant,” just a “top gallant” (usually “t’gallant,” sometimes “gans’l”). I’ve sailed on ships with split t’gallants, though. I did sail on one ship with a skys’l, never a moonraker; I suspect those are both terms for “a sail above the royal”.
I found this pic informative:
It’s also interesting how they were naming things after James Bond movies all the way back in the Age of Sail!
I’ve never heard of a “gallant,” just a “top gallant” (usually “t’gallant,” sometimes “gans’l”). I’ve sailed on ships with split t’gallants, though. I did sail on one ship with a skys’l, never a moonraker; I suspect those are both terms for “a sail above the royal”.