I saw these land on the back of a Missile Cruiser with a pitching deck like this one. The pilot matched the up and down motion of the ship as well as the pitching motion flying 20-30 feet above the deck. Once they were in sync the pilot would plop down during the down motion of the boat. You can see to the left of the helicopter is a small protrusion sticking out of the deck with windows. A pilot will be stationed inside helping to guide the helo to the deck. There is also a flight control officer in a small tower above the hanger deck directing the landing. Even with that help it still must take some big brass ones to land!
