Helicopter Sikorsky HO4S-3 Serial 55-891 Register 55891 used by Royal Canadian Navy (1945-1968). Built 1955. Aircraft history and location Aircraft History 55891 Royal Canadian Navy (1945-1968) 1955-07-26HO4S-3 RCN d/d 26jul55 wfu 08aug64 preserved at Shearwater Aviation Museum, Shearwater Halifax, Nova Scotia 2012-12-14 A CYAW Stored In storage at Shearwater Aviation Museum by Dec 2012. Send Updates Use APP to upload photo @ (optional) When Now? / / Send