Stilton - on pretty much any warship other than a carrier, the landing area is behind the superstructure and in turbulent air if the relative wind is from dead ahead so the vessel would normally take up a course with the wind off to one side so the relative wind comes from about 30 degrees off the head.
Yes, airflow across the rotor disc will give you benefit and if above 12-15 knots will give you translational lift.
Bear in mind that rolling take offs are often used when very limited on performance which is not what you want when operating from a deck.