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fighting ships of the world

ROYAL NAVY - UNITED KINGDOM

SUBMARINES

"A" submarines (AMPHION) (1945 - 1948)

Amphion 1945

Affray 1945

Name No Yard No Builder Laid down Launched Comp Fate
Abelard P451   Portsmouth DYd 1945 --- --- cancelled
Acasta P452   Portsmouth DYd 1945 --- --- cancelled
Ace P414   Devonport DYd 12.1943 14.3.1945 --- completed as target
Achates P433   Devonport DYd 3/1944 20.9.1945 --- completed as target
Acheron P411, 1948- S61   Chatham DYd 8/1944 25.3.1947 4/1948 BU 2.1972
Adept P412   Chatham DYd 1945 --- --- cancelled
Admirable P434   Vickers-Armstrong, Tyne 1945 --- --- cancelled
Adversary P457   Vickers-Armstrong, Tyne 1945 --- --- cancelled
Aeneas P427, 1948- S72   Cammell Laird, Birkenhead 10/1944 25.10.1945 7/1946 BU 12.1974
Affray P421, 1948- S20   Cammell Laird, Birkenhead 1.1944 12.4.1945 5.1946 lost 17.4.1951
Agate P448   Cammell Laird, Birkenhead 1945 --- --- cancelled
Aggressor P446   Cammell Laird, Birkenhead 1945 --- --- cancelled
Agile P443   Cammell Laird, Birkenhead 1945 --- --- cancelled
Aladdin P454   Cammell Laird, Birkenhead 1945 --- --- cancelled
Alaric P441, 1948- S41   Cammell Laird, Birkenhead 5/1944 18.2.1946 12/1946 BU 7.1971
Alcestis P453   Cammell Laird, Birkenhead 1945 --- --- cancelled
Alcide P415, 1948- S65   Vickers-Armstrong, Barrow 2/1945 12.4.1945 10/1946 BU 6.1974
Alderney P416, 1948- S66   Vickers-Armstrong, Barrow 2/1945 25.6.1945 12/1946 BU 8.1972
Alliance P417, 1948- S67   Vickers-Armstrong, Barrow 3/1945 28.7.1945 5/1947 preserved 1.1981
Ambush P418, 1948- S68   Vickers-Armstrong, Barrow 5/1945 24.9.1945 7/1947 BU 7.1971
Amphion (ex-Anchorite) P439, 1948- S43   Vickers-Armstrong, Barrow 11/1943 31.8.1944 3/1945 BU 7.1971
Anchorite (ex-Amphion) P422, 1948- S64   Vickers-Armstrong, Barrow 7/1945 22.1.1946 11/1947 BU 8.1970
Andrew P423, 1948- S63   Vickers-Armstrong, Barrow 8/1945 6.4.1946 3/1948 BU 5.1977
Andromache P424   Vickers-Armstrong, Barrow 1945 --- --- cancelled
Answer P425   Vickers-Armstrong, Barrow 1945 --- --- cancelled
Antaeus P429   Vickers-Armstrong, Barrow 1945 --- --- cancelled
Antagonist P428   Vickers-Armstrong, Barrow 1945 --- --- cancelled
Anzac P431   Vickers-Armstrong, Barrow 1945 --- --- cancelled
Aphrodite P432   Vickers-Armstrong, Barrow 1945 --- --- cancelled
Approach P435   Vickers-Armstrong, Barrow 1945 --- --- cancelled
Arcadian P436   Vickers-Armstrong, Barrow 1945 --- --- cancelled
Ardent P437   Vickers-Armstrong, Barrow 1945 --- --- cancelled
Argosy P438   Vickers-Armstrong, Barrow 1945 --- --- cancelled
Artemis P449, 1948- S49   Scotts, Greenock 2/1944 26.8.1946 8/1947 BU 1.1972
Artful P456, 1948- S96   Scotts, Greenock 6/1944 22.5.1947 2/1948 BU 6.1972
Asgard P458   Scotts, Greenock 1945 --- --- cancelled
Asperity P444   Vickers-Armstrong, Tyne 1945 --- --- cancelled
Assurance P462   Scotts, Greenock 1945 --- --- cancelled
Astarte P461   Scotts, Greenock 1945 --- --- cancelled
Astute P447, 1948- S47   Vickers-Armstrong, Barrow 4/1944 30.1.1945 6/1945 BU 10.1970
Atlantis P442   Vickers-Armstrong, Barrow 1945 --- --- cancelled
Auriga P419, 1948- S69   Vickers-Armstrong, Barrow 6/1944 29.3.1945 1/1946 BU 2.1975
Aurochs P426, 1948- S26   Vickers-Armstrong, Barrow 6.1944 28.7.1945 2/1947 BU 2.1967
Austere P445   Vickers-Armstrong, Tyne 1945 --- --- cancelled
Awake P459   Vickers-Armstrong, Tyne 1945 --- --- cancelled
Aztec P455   Vickers-Armstrong, Tyne 1945 --- --- cancelled

 

Displacement standard, t

1120

Displacement normal, t

1385 / 1620

Length, m

85.1

Breadth, m

6.78

Draught, m

5.21

No of shafts

2

Machinery

4 8-cyl Vickers supercharged diesels / 2 electric motors

Acheron, Aeneas, Affray, Alaric, Artemis, Artful: 4 8-cyl Admiralty supercharged diesels / 2 electric motors

Abelard, Acasta, Ace, Achates: 4 6-cyl Admiralty supercharged diesels / 2 electric motors

Power, h. p.

4300 / 1250

Abelard, Acasta, Ace, Achates: 3400 / 1250

Max speed, kn

18.5 / 8

Abelard, Acasta, Ace, Achates: 17.5 / 8

Fuel, t

diesel oil 165, 219 maximally

Endurance, nm(kts)

10500(11) / 90(3)

Armament

Alliance, Amphion, Astute: 1 x 1 - 102/40 QF Mk XXII, 1 x 1 - 20/70 Oerlikon Mk IV, 10 - 533 TT (4 bow, 2 stern, 2 ext bow, 2 ext stern, 20 torpedoes or 18 Ì2 mines)

others: 1 x 1 - 102/40 S Mk I, 1 x 1 - 20/70 Mk VII S/M, 10 - 533 TT (4 bow, 2 stern, 2 ext bow, 2 ext stern, 20 torpedoes or 18 Ì2 mines)

Sensors

 type 267W radar, type 138, type 152 sonars

Complement

61

Diving depth operational, m

 105

Project history: These submarines were designed in 1943 specially for service in Pacific and had better surface speed and improved habitability. Unlike all previous patrol submarines, they were double-hulled instead of traditional saddle-tank form. Many technical decisions introduced on "Ò" class during serial building, in particular, an all-welded pressure hull were used. Operational diving depth was 105 m, maximal 180 m. Welded fuel tanks placed inside and out of a pressure hull. The additional fuel stowage could be hold in the welded ballast tanks specially adapted for this purpose. In comparison with "Ò" class, TTs were distributed between a bow and a stern more equally: 6 and 4, a partly out of a pressure hull.

Building of 46 "A" class boats was provided under 1943 Programme. Order for 28 units had been canceled.

Modernizations: late 1940s, all: - 1 x 1 - 102/40, 1 x 1 - 20/70, 2 - 533 TT (ext fwd)

late 1940s, several: + 1 x 1 - 102/33 S Mk II (QF Mk XXIII gun)

1955 - 1960, Acheron, Aeneas, Alaric, Alcide, Alderney, Alliance, Ambush, Amphion, Anchorite, Andrew, Artemis, Artful, Astute, Auriga: were modernized as follows:

Artemis 1967

Displacement standard, t

1120

Displacement normal, t

1443 / 1620

Length, m

67.4 pp 85.9 oa

Breadth, m

6.80

Draught, m

5.50

No of shafts

2

Machinery

4 Vickers-Admiralty supercharged diesels / 2 electric motors

Power, h. p.

4300 / 1250

Max speed, kn

19 / 15

Fuel, t

diesel oil 213

Armament

6 - 533 TT (4 fwd, 2 aft, 18 torpedoes or 18 Ìk 2 or 26 Mk 5 mines)

Sensors

 type 267W radar, type 186, type 187, type 197 sonars

Complement

63

Diving depth operational, m

 105

 

Naval service: Affray was foundered during exercises 17.4.1951.

Alderney 1950

 

 

Andrew 1974

 

© Ivan Gogin, 2008-15