Helicopter Sikorsky HO4S-3 Serial 55-876 Register 55876 used by Royal Canadian Navy (1945-1968). Built 1955. Aircraft history and location Aircraft History 55876 Royal Canadian Navy (1945-1968) 1955-06-10HO4S-3 RCN d/d 10jun55 wfu 15nov68 Send Updates Use APP to upload photo @ (optional) When Now? / / Send