South Korea is already part of the Joint Strike Fighter program, having decided to buy forty F-35A fighters in 2014 for $6.75 billion. However, that is the conventional version of the fighter jets. By contrast, the F-35Bs have the short takeoff and vertical landing (STOVL) capability that would be necessary to operate the planes from the Dokdo-class ships. Thus, if South Korea decided to move forward with the plan outlined in the Yonhap report, it would have to purchase F-35Bs, along with reconfiguring the amphibious assault ships to carry fixed-wing aircraft.

South Korea has launched its second amphibious assault ship.

On May 14, South Korean officials launched the second Dokdo-class helicopter carrier. The ceremony took place in Busan at the shipyard of Hanjin Heavy Industries and Construction, the company that built the vessel. Among those in attendance were Defense Minister Song Young-moo and Chief of Naval Operations Adm. Um Hyun-seong, according to local news outlets.

Construction of the second Dokdo-class amphibious assault ship, named Marado, began in 2016. The ship will be the second largest ship in the Republic of Korea’s Navy, after the first Dokdo-class ship. Displacing 14,500 tons, the ship has a width of thirty-one meters and a length of 199 meters. The Marado can also sail at speeds approaching forty-one kilometers per hour. According to Yonhap News Agency, “It has a 20-mm Phalanx close-in weapons system, as well, while the Dokdo [the first ship in the class] is installed with the 30-mm Goalkeeper gun.” The Marado will be delivered to the South Korean Navy in late 2020 following testing.
https://www.yahoo.com/news/navy-firs...141900366.html