Well that's a given. Though I should warn you 0.39g will be unkind to sailboat designers. Speed is proportional to torque on the mast which has to be counter-acted by torque created by the offset of the weight force and the buoyant force. This the same hull design would be only able to handle 0.4 the force on Mars.

You would have an easier time getting up on plane though, so maybe catamaran hydrofoils would be the thing.