The Sikorsky S-58 was developed from the Sikorsky's UH-19 Chickasaw. The aircraft first flew on 8 March 1954. It was initially designated HSS-1 Seabat (in its anti-submarine configuration) and HUS-1 Seahorse (in its utility transport configuration) under the US Navy designation system for US Navy, US Marine Corps and US Coast Guard aircraft. Under the US Army's aircraft designation system, also used by the US Air Force, the helicopter was designated H-34. The US Army also applied the name Choctaw to the helicopter. In 1962, under the new unified designation system, the Seabat was redesignated SH-34, the Seahorse as the UH-34, and the Choctaw as the CH-34. The Sikorsky S-58 Seabat was used in specific tasks by the Chilean Navy, as utility transport, anti-submarine warfare, search and rescue, and VIP transport. In it standard configuration transport versions could carry 12 to 16 troops, or eight stretcher cases if utilized in the MedEvac role. Original Designer: Klaus D. Werr.. New Chilean Navy Textures and damage profile for CFS1: Edmundo Abad (2009) Also special thanks to Juan Concha & Roberto Ibarra, former FACH officers, by the great provided information for the development of this virtual model. Converted to CFS1 and repainted as Sikorsky S-58 NAVAL #51, Base Aeronaval El Belloto, Armada de Chile, 1974.