NAVYPEDIA

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Sea Scout	P253, 1948- S153		Cammell Laird, Birkenhead	4.1943	24.3.1944	7/1944	BU 12.1965
Selene	P254, 1948- S154		Cammell Laird, Birkenhead	4.1943	24.4.1944	7/1944	BU 6.1961
Seneschal	P255, 1948- S75		Scotts, Greenock	9.1943	23.4.1945	9/1945	BU 8.1960
Sentinel	P256, 1948- S56		Scotts, Greenock	11.1943	27.7.1945	12/1945	BU 2.1962
Sidon	P259, 1948- S59		Cammell Laird, Birkenhead	7.1943	4.9.1944	11/1944	blew up 16.6.1955, target 1957
Sleuth	P261, 1948- S61		Cammell Laird, Birkenhead	6.1943	6.7.1944	10/1944	BU 9.1958
Solent	P262, 1948- S62		Cammell Laird, Birkenhead	5.1943	8.6.1944	9.1944	BU 8.1961
Spearhead	P263		Cammell Laird, Birkenhead	8.1943	2.10.1944	12/1944	to Portugal 8.1948 (Neptuno)
Springer	P264, 1948- S64		Cammell Laird, Birkenhead	5.1944	14.5.1945	8/1945	to Israel 10.1958 (תנין [Tanin])
Sturdy	P248, 1948- S48		Cammell Laird, Birkenhead	12.1942	30.9.1943	12/1943	BU 5.1958
Stygian	P249, 1948- S...		Cammell Laird, Birkenhead	1.1943	30.11.1943	2/1944	BU 10.1949
Subtle	P251, 1948- S51		Cammell Laird, Birkenhead	2.1943	27.1.1944	4/1944	BU 7.1959
Supreme	P252, 1948- S...		Cammell Laird, Birkenhead	2.1943	24.2.1944	5/1944	BU 7.1950
Saga	P257		Cammell Laird, Birkenhead	4.1944	14.3.1945	6/1945	to Portugal 10.1948 (Nautilo)
Sanguine	P266, 1948- S66		Cammell Laird, Birkenhead	1.1944	15.2.1945	5/1945	to Israel 1958 (רהב [Rahav])
Scorcher	P258, 1948- S58		Cammell Laird, Birkenhead	12.1943	18.12.1944	3/1945	BU 9.1962
Spur	P265		Cammell Laird, Birkenhead	10.1943	17.11.1944	2.1945	to Portugal 11.1948 (Narval)

Technical data

Max speed, kts, kn	14.75 / 9
Displacement standard, t	715
Displacement normal, t	814 / 990 Sturdy, Stygian: 842 / 990
Length, m	66.1
Breadth, m	7.24
Draught, m	4.24 - 4.29 Sturdy, Stygian: 4.47
No of shafts	2
Machinery	2 Admiralty diesels / 2 electric motors
Power, h. p.	1900 / 1300
Fuel, t	diesel oil 45, up to 85 max Sturdy, Stygian: 67, up to 92 max
Endurance, nm(kts)	4000(10) / Sturdy, Stygian: 6000(10) /
Armament	1 x 1 - 102/40 QF Mk XII, 1 x 1 - 20/70 Oerlikon Mk II/IV, 6 - 533 TT (bow, 12 torpedoes or 12 М2 mines) Seneschal, Sentinel, Spearhead, Sanguine: 1 x 1 - 102/40 QF Mk XXII, 1 x 1 - 20/70 Oerlikon Mk II/IV, 6 - 533 TT (bow, 12 torpedoes or 12 М2 mines) Stygian, Subtle: 1 x 1 - 76/45 20cwt QF Mk II, 1 x 1 - 20/70 Oerlikon Mk II/IV, 7 - 533 TT (6 bow, 1 ext stern, 13 torpedoes or 12 М2 mines) Sturdy: 1 x 1 - 102/40 QF Mk XII, 1 x 1 - 20/70 Oerlikon Mk II/IV, 7 - 533 TT (6 bow, 1 ext stern, 13 torpedoes or 12 М2 mines)
Electronic equipment	type 267W radar, type 129, type 138 sonars Stygian, Subtle, Sturdy: type 291W radar, type 129, type 138 sonars
Complement	48
Diving depth operational, m	110 Stygian, Sturdy: 95

Standard scale images

Project history

Development of Shark class. 5 submarines were built under "Emergency war Programme", 13 under 1940 Programme, 15 under 1941, 12 under 1942 and 5 boats under 1943 Programme. In comparison with pre-war boats of "S" class, bulkheads were welded and fuel stowage at the expense of storage of part of fuel in specially arranged  ballast tanks was increased. All boats of 1942 and 1943 Programmes had all-welded pressure hull, that has raised an operational diving depth to 110m. Majority of submarines had additional seventh TT out of a pressure hull. During or already after completion all ships have even more increased fuel stowage at the expense of improvement of ballast tanks construction: on 40 or 25t.

Modernizations

1/1946: Sea Scout, Selene, Sidon, Sleuth, Solent, Springer, Supreme, Saga, Scorcher, Spur: 1 x 1 - 102/40 S Mk I, 1 x 1 - 20/70 Mk IIA S/M, 6 - 533 TT, type 267W radar, type 129, type 138 sonars

1/1946, Seneschal, Sentinel, Spearhead, Sanguine: 1 x 1 - 102/40 S Mk I, 1 x 1 - 20/70 Mk IIA S/M, 6 - 533 TT, type 267W radar, type 129, type 138 sonars

1/1946, Stygian, Subtle: 1 x 1 - 76/45 CP Mk V, 1 x 1 - 20/70 Mk IIA S/M, 7 - 533 TT, type 291W radar, type 129, type 138 sonars

1/1946, Sturdy: 1 x 1 - 102/40 S Mk I, 1 x 1 - 20/70 Mk IIA S/M, 7 - 533 TT, type 291W radar, type 129, type 138 sonars

early 1950s, most survived: - 1 x 1 - 76/45 or 102/40

Naval service

Selene, Solent and Sleuth were converted to high speed underwater target after war. Hull and casing were streamlined, new higher capacity batteries, up-rated motors and "T" class propellers were installed. Maximal speed increased up to 12.5kts at periscope depth and 16.7kts surfaced. Sidon exploded caused by concentrated hydrogen peroxide used in experimental Mk 12 torpedo, later she was salvaged and used as target.