Helicopter Sikorsky YH-19 Serial 55-001 Register N2797 49-2012 used by US Air Force USAF. Built 1950. Aircraft history and location Aircraft History 49-2012 US Air Force 1949-10-11 f/f 11oct49 1950-04-16Sikorsky S-55, c/n 55-001, ff:? del USAF as YH-19, 49-2012, 16Apr50, status unk. N2797 - ex 49-2012 now preserved at Smithsonian Institution Send Updates Use APP to upload photo @ (optional) When Now? / / Send
