Royal Canadian Navy / Marine Royale Canadienne
Mackenzie class Destroyer Escort - DDE
Ships:
unit				builder		commissioned	status
DDE 261 HMCS Mackenzie				Canadian Vickers Ltd., Montreal		1962	artificial reef
DDE 262 HMCS Saskatchewan				Victoria Machinery Depot Ltd., Victoria		1963	artificial reef
DDE 263 HMCS Yukon				Burrard Dry Dock Ltd., North Vancouver		1963	artificial reef
DDE 264 HMCS Qu’Appelle				Davie Shipbuilding Ltd., Lauzon		1963	scrapped
Six units of this class were envisioned, of which four were completed to this specification. The last two hulls were completed to the post DDH conversion St. Laurent-class destroyer design (which included helicopter hangars); they were designated as Annapolis-class destroyers instead. The four Mackenzie-class destroyers spent most of their service in the Pacific arena, used primarily in the training role. Their only significant update was the DELEX (destroyer life extension) program and thus they were largely obsolete in their intended role by the late 1970s. The Mackenzie class was similar to the previous Restigouche-class, which was a follow-on to the St. Laurent-class. The most noticeable change for Mackenzie was the replacement of the forward 3"/50 gun with a 3"/70 and the presence of a fire-control director atop the bridge superstructure. The bridge was raised one full deck higher than on previous classes in order to see over the new gun mount. The Vickers 3"/70 Mk.6 gun was developed by the Royal Navy and fitted to the Tiger-class cruisers, with the RCN being the only other customer. The weapon had several shortcomings, and it was only installed on the first three hulls. HMCS Qu'Appelle (DDE 264) received a 3"/50 gun instead. HMCS Mackenzie was scuttled off Sidney, British Columbia, HMCS Saskatchewan was scuttled off Nanaimo, British Columbia and HMCS Yukon was scuttled off San Diego, California. DELEX - Refits: DDE 261 HMCS Mackenzie (1985) DDE 262 HMCS Saskatchewan (1984) DDE 263 HMCS Yukon (1983) DDE 264 HMCS Qu’Appelle (1982) source: wikipedia
	Specifications:
	Displacement:	2880 tons (full load)
	Length:	111,6 meters
	Beam:	12,8 meters
	Draft:	4,3 meters
	Speed:	28 knots, max. (52 km/h)
	Range:	4750 NM (8800 km) at 14 knots (26 km/h)
	Crew:	230
	Aviation:	none
	Propulsion:	2 English Electric geared steam turbines, 2 Babcock & Wilcox boilers / 2 shafts, 2 propellers / 30000 shp
	Armament:	1 x Vickers Mk-6 3”/70 twin gun, forward (DDE 264 = 1 x 3”/50 twin gun) 1 x Mk-33 FMC 3”/50 twin gun, aft 2 x Mk-10 NC Limbo ASW Mortars 2 x Mk-2 single launchers with homing torpedoes (removed later) 2 x Mk-32 triple torpedo tubes for Mk-46 Torpedoes (added later)
class images:
Mackenzie class main armament after DELEX
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