IROQUOIS destroyers (1942-1948)

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CANADA

TORPEDO SHIPS

Ships

Name	No	Builder	Laid down	Launched	Comp	Fate
Athabaskan	G07	Vickers-Armstrong, Tyne, UK	10.1940	18.11.1941	2.1943	sunk 29.4.1944
Haida	G63 - DDE215	Vickers-Armstrong, Tyne, UK	9.1941	25.8.1942	9.1943	preserved 8.1964
Huron	G24 - DDE216	Vickers-Armstrong, Tyne, UK	7.1941	25.6.1942	7.1943	BU 8.1965
Iroquois	G89 - DDE217	Vickers-Armstrong, Tyne, UK	9.1940	23.9.1941	12.1942	BU 9.1966
Athabaskan	R79 - DDE219	Halifax SY	5.1944	14.5.1946	1.1948	BU 7.1969
Cayuga	R04 - DDE218	Halifax SY	10.1943	28.7.1945	10.1947	BU 2.1964
Micmac	R10 - DDE214	Halifax SY	5.1942	18.9.1943	9.1945	BU 3.1964
Nootka	R96 - DDE213	Halifax SY	5.1942	26.4.1944	8.1946	BU 10.1964

Technical data

Data variant	as completed	modernization 1951-1955
Displacement standard, t	1927	2200
Displacement full, t	2745	2500
Length, m	108.4 pp 114.9 oa	108.4 pp 114.9 oa
Breadth, m	11.4	11.4
Draught, m	3.96 (later 4.16)	4.16
No of shafts	2	2
Machinery	2 sets Parsons geared steam turbines, 3 Admiralty 3-drum boilers	2 sets Parsons geared steam turbines, 3 Admiralty 3-drum boilers
Power, h. p.	44000	44000
Max speed, kts	36.25 - 36.5	36.25
Fuel, t	oil 505 - 516	oil 505 - 516
Endurance, nm(kts)	5700(15)
Armament	Iroquois: 3 x 2 - 120/45 QF Mk XII, 1 x 2 - 102/45 QF Mk XVI, 1 x 4 - 40/39 2pdr QF Mk VIII, 6 x 1 - 20/70 Oerlikon Mk II/IV, 1 x 4 - 533 TT, 2 DCT, 1 DCR (30 DC) Athabaskan (I): 3 x 2 - 120/45 QF Mk XII, 1 x 2 - 102/45 QF Mk XVI, 1 x 4 - 40/39 2pdr QF Mk VIII, 4 x 2 - 20/70 Oerlikon Mk II/IV, 2 x 1 - 20/70 Oerlikon Mk II/IV, 1 x 4 - 533 TT, 2 DCT, 1 DCR (30 DC) Huron, Haida: 3 x 2 - 120/45 QF Mk XII, 1 x 2 - 102/45 QF Mk XVI, 1 x 4 - 40/39 2pdr QF Mk VIII, 6 x 2 - 20/70 Oerlikon Mk II/IV, 1 x 4 - 533 TT, 2 DCT, 1 DCR (30 DC) Athabaskan (II), Cayuga: 4 x 2 - 102/45 Mk XIX, 1 x 2 - 40/60 RP.50 Mk V, 2 x 1 - 40/60 Mk VII, 2 x 2 - 20/70 Mk III, 1 x 4 - 533 TT, 2 DCT, 2 DCR (46 DC) Micmac, Nootka: 4 x 2 - 102/45 QF Mk XIX, 2 x 2 - 40/60 RP.50 Mk V, 2 x 1 - 40/60 Mk VII, 2 x 2 - 20/70 Mk VC, 1 x 4 - 533 TT	2 x 2 - 102/45 Mk 19, 1 x 2 - 76/50 Mk 22, 4 x 1 - 40/60 Boffin, 1 x 4 - 533 TT, 2 x 3 - 305 Squid Mk 3 ASWRL Cayuga, Athabaskan: 2 x 2 - 102/45 Mk 19, 1 x 2 - 76/50 Mk 22, 4 x 1 - 40/60 Mk 7, 1 x 4 - 533 TT, 2 x 3 - 305 Squid Mk 3 ASWRL
Electronic equipment	presumably Iroquois, Athabscan (I): type 271, type 272, type 285, type 291 radars, type 144 sonar presumably Huron, Haida: type 271, type 285, type 291 radars, type 144 sonar presumably Micmac, Nootka: type 268, type 275, type 277, type 282, type 291 radars, type 144 sonar presumably Cayuga, Athabascan (II): type 262, type 268, type 275, type 277, type 291 radars, type 144 sonar	SPS-10, SPS-6, Mk 28, type 293, type 262 radars, type 170, type 174 sonars Cayuga, Athabaskan: type 275, type 293, type 262, type 268, type 277 radars, type 170, type 174 sonars
Complement	190 - 250	240

Standard scale images

Huron 1944

Athabaskan 1943

Athabaskan 1955

Athabaskan 1963

Project history

"Tribal" class ships became the answer of Britain to occurrence in navies of probable opponents of large destroyers appreciable exceeding on armament standard British destroyers with their four 120mm guns. A starting point in designing of the new ship began requirement of Admiralty to place powerful armament including ten 120mm guns that should ensure the superiority over new foreign destroyers, such as Japanese Fubuki (3x2 127mm guns and 3х3 TT). Besides it, the wish to ensure leaders of "V" class (an initial designation of these ships) the strengthened air defence armament including newest multi-barrelled 40-mm pompoms expressed. Thus especially made a reservation, that the ships should not be so large that require armour protection, but to have the sufficient dimensions for providing of good seaworthiness.

By basic design working out it has appeared what to fulfil all requirements within the limits of the resolved displacement (1850t was an upper limit for leaders according to decisions of the London conference) it is impossible, and after considering of numerous variants were stopped on the design with 8 120mm guns, two quadruple 40mm pompoms (one was excluded from the specification already after the bulding beginning) and 1 quadruple TT (the truth, with a power drive). It was supposed, that the ships of this class will be brought together in a flotilla of seven-shipboard structure, and under the 1935 program building of such flotilla was provided, but this idea have soon refused, having ordered next year not 7, but 9 ships.

Structurally, except transition to heavier twin main gun mounts, application of yacht stem instead of straight one (as planed on sketch design phases on "Tribal") and using on 30 % of more powerful machinery, "Tribal" essentially did not differ from the predecessors: the same internal arrangement and the same cross-section hull framing system. Last also became the main lack of these in remaining very successful ships.

Dominions also have replenished with "Tribal" class ships. Australian have decided to built them by own strength, but with assistance of British specialists, and machinery have been ordered in Britain. Australian "Tribals" originally differed nothing from an English pre-image. First two ships have ordered in the January, 1939, four more in May of the same year. Order for 3 additional units was cancelled before a war. Already during a building structure of armament of the ships have made the changes dictated by experience of the first months of operations in Europe. Basically they repeated works conducted on British "Tribals": in particular, "X" 120mm mount and 12.7mm MGs were replaced by DP 102mm twin and 20mm Oerlikons. Bataan become operational the last and carried 40mm/56 Boforses instead of Oerlikons.

Decision on a building of "Tribals" was accepted also by Canada in 1940, but not at itself, and in British. In 1940 the order on 4 ships has been given out. During an execution of an order in armament was changed in general repeating accepted on the Australian destroyers. More successful arranging of quadruple pompom became unique significant difference. Already after an end of the war 4 more Canadian "Tribal" class destroyers were completed, built in Canada under a little changed design (4x2 102-mm/45 guns and 40mm Boforses).

Modernizations

1943 - 1944, Iroquois: - 6 x 1 - 20/70; + 6 x 2 - 20/70 Oerlikon Mk II/IV

1946 - 1951, Iroquois, Huron, Haida: - 3 x 2 - 120/45, 1 x 4 - 40/39, 6 x 2 - 20/70, 2 DCT, 1 DCR, type 275 (or 285) radar; + 3 x 2 - 102/45 Mk XIX, 1 x 2 - 40/60 RP.50 Mk V, 2 x 1 - 40/60 Mk VII, 1 x 3 - 305 Squid ASWRL, Mk 28 radar

1951 - 1955, all survived Canadian ships were modernized as follows:

Naval service