page_title: HMCS Calgary (FFH 335)
section_title: Operational history
hierarchical_section_title: HMCS Calgary (FFH 335) / Operational history
caption_attribution_description: The Canadian frigate HMCS Calgary (FFH 335) steams slowly through the Pacific Ocean where she is operating with other forces for exercise "Tandem Thrust '99".
context_page_description: HMCS Calgary is a Halifax-class frigate that has served in the Canadian Forces and Royal Canadian Navy since 1995. Calgary is the sixth vessel in her class and the second vessel to carry the designation HMCS Calgary. She was built as part of the Canadian Patrol Frigate Project. Calgary began the FELEX refit in June 2012. She is assigned to Maritime Forces Pacific and is homeported at CFB Esquimalt. Calgary serves on MARPAC missions protecting Canada's sovereignty in the Pacific Ocean and enforcing Canadian laws in its territorial sea and Exclusive Economic Zone.
context_section_description: Calgary was laid down on 15 June 1991 by MIL Davie Shipbuilding at Lauzon and launched on 28 August 1992. She was commissioned into the Canadian Forces on 12 May 1995 and carries the hull classification symbol 335.
  On 10 July 1995, Calgary was sent to the Persian Gulf as part of the force used to enforce sanctions on Iraq, her mission lasting until December of that year. While en route home, she assisted the sinking bulk carrier Mount Olympus. She rescued all 30 members of the crew, taking them to the freighter Rodopi. Calgary deployed as part of the NATO blockade of Yugoslavia in the Adriatic Sea.
  In 1999, while participating in the naval exercise "Tandem Thrust", Calgary suffered the breakdown of one of her diesel generators. The following year the frigate redeployed to the Persian Gulf, once again as part of the group enforcing sanctions against Iraq, replacing sister ship Regina. Calgary sailed to the Persian Gulf in 2003 as part of Operation Apollo. During her time in theatre, the ship conducted 24 boardings of suspect vessels. Calgary was the last ship to deploy as part of the operation, which ended with the ship's departure on 1 November 2003.
  In 2008, with the auxiliary vessel Protecteur and the destroyer Iroquois, Calgary sailed to the Horn of Africa to join the Combined Task Force 150. Calgary spent her time performing maritime interdiction of people and drug smuggling and stopping piracy between Somalia and Yemen. In 2009, Calgary sailed to the Caribbean Sea to take part in Operation Caribbe, the Canadian drug-interdiction operation.
  On 6 June 2011 Calgary was turned over to Seaspan Marine Corporation's Victoria Shipyards, to start an 18-month mid-life upgrading and modernization. Calgary was returned to the Royal Canadian Navy from Victoria Shipyards on 1 June 2012 and as of fall 2013 conducted sea acceptance trials.
  Calgary participated in RIMPAC 2014 in June 2014, the first time that China will participate in the operation. Calgary, accompanied by Winnipeg, Yellowknife and Brandon, departed in October 2014 to take part in San Francisco Fleet Week and the Task Group Exercise (TGEX) with the US Navy in American coastal waters.
  In October 2015, Calgary, along with Chicoutimi and Vancouver, participated in the TGEX naval exercise. In June 2016, Calgary, Vancouver, Saskatoon and Yellowknife sailed from Esquimalt to participate in the RIMPAC naval exercise.
  On 25 February 2018, 10,000–20,000 litres (2,642–5,283 US gal) of fuel was spilled from the ship while Calgary was sailing in the Georgia Strait between Vancouver Island and the mainland. Calgary circled back on her path and aircraft searched along the course for an oil sheen. The Western Canadian Marine Response was alerted and the Canadian Coast Guard and Environment Canada were also responded to the situation. The Royal Canadian Navy deployed four of its Orca-class patrol vessels and one CP-140A Aurora aircraft to search for signs of oil spill, but found none. Environment Canada believed this was due to inclement weather which prevented the oil from reaching shore and caused it to break up in the ocean. On 30 July, Calgary departed Esquimalt for a five-month deployment to the Pacific Ocean taking part in naval exercises with Japan, South Korea, New Zealand and Australia. 
  The ship was joined by the Canadian auxiliary ship MV Asterix in the Western Pacific, visiting Da Nang, Vietnam in September. Calgary was deployed in naval exercises in the South China Sea, East China Sea, visiting Japan and Australia. Calgary was assigned duties enforcing United Nations resolutions against North Korea. After a year at sea, Asterix and Calgary returned to Canada at CFB Esquimalt on 18 December.
caption: HMCS Calgary deployed on Exercise "Tandem Thrust" in 1999.
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