Sea King 12405 was taken on strength by the Royal Canadian Navy in 1964 and was the first of 37 assembled by United Aircraft of Canada in Longueuil, Quebec, from kits supplied by Sikorsky. Transferred to the RCAF in 1970, this Sea King served with 423, 443 and 406 Sqdns. It served in the Gulf War as part of Operation Friction in 1991 and with the United Nations in East Timor for Operation Toucan in 1999-2000. Retired in November 2018 with 17,755 airframe hours recorded, the highest of the 41 Canadian Sea Kings.