Protecteur-class replenishment oiler

Protecteur-class auxiliary oiler replenishment (AOR) ships are used by the Royal Canadian Navy to resupply ships at sea with food, munitions, fuel and spare parts. They have more sophisticated medical and dental facilities than smaller warships. At 172 meters (564 feet) the ships are the largest operated by the RCN.

General characteristics

 * Length: 171.9 m
 * Beam: 23.2 m
 * Displacement: 8,380 tons light; 24,700 tons full load
 * Aircraft: 3 x CH-124 Sea King helicopters
 * Complement: 365 (27 of whom are officers) - this includes 45 aircrew
 * Cargo Capacity:
 * 14,590 tons fuel
 * 400 tons aviation fuel
 * 1,048 tons dry cargo
 * 1,250 tons ammunition
 * Armament:
 * 2 x Phalanx CIWS
 * 6 x .50 calibre machine guns

HMCS Protecteur (AOR 509)

 * Builders: 🇨🇦 Canada (Saint John Shipbuilding in Saint John, New Brunswick)
 * Laid down: 16 December 1966
 * Launched: 18 July 1968
 * Operator: Royal Canadian Navy
 * Stationed: West Coast (Esquimalt, British Columbia)
 * Commissioned: 30 August 1969
 * Status: In active service
 * Modifications:
 * Operations: Operation Altair

HMCS Preserver (AOR 510)

 * Builders: 🇨🇦 Canada (Saint John Shipbuilding in Saint John, New Brunswick)
 * Laid down: 17 October 1967
 * Launched: 1969
 * Operator: Royal Canadian Navy
 * Stationed: East Coast (Halifax, Nova Scotia)
 * Commissioned: 30 July 1970
 * Status: In active service
 * Modifications:
 * Operations: Op Apollo