General Characteristics Power Plant: 2 shafts, 2 Pratt & Whitney FT4-A2 gas turbines (50,000 shp), 2 Allison 570-KF gas turbines (7,500 shp) Length: 423 feet Beam: 50 feet Draft: 14.5 feet Displacement: 5,100 tons full load Speed: in excess of 29 knots Aircraft: 2 CH-124 Sea King helicopters Complement: 285 Armament: 1 29 cell VLS (Standard SM-2MR Block IIIA), 1 76mm/62 OTO Melara (Super Rapid) DP, .50 calibre machine guns, 1 120 mm Phalanx CIWS, 2 triple Mk.32 12.75 inch torpedo tubes firing Mk.46 Mod 5 torpedoes. Radar: AN/SPQ 501 (Signaal DA-08), AN/SPQ 502 (Signaal LW-08) Sonar: SQS-510 hull, SQS-510 VDS Ships HMCS IROQUOIS (DDH 280): commissioned on 29/07/72, refitted on 03/07/92 HMCS HURON (DDH 281): commissioned on 16/12/72, refitted on 25/11/94 HMCS ATHABASKAN (DDH 282): commissioned on 30/09/72, refitted on 04/06/94 HMCS ALGONQUIN (DDH 283): commissioned on 03/11/73, refitted on 11/10/91 External Links Royal Canadian Navy: http://www.navy.forces.gc.ca/