Helicopter Sikorsky HO4S-3 Serial 55-867 Register 55867 used by Royal Canadian Navy (1945-1968). Built 1955. Aircraft history and location Aircraft History 55867 Royal Canadian Navy (1945-1968) 1955-05-16HO4S-3 RCN d/d 16may55 wfu 17jun64 Send Updates Use APP to upload photo @ (optional) When Now? / / Send