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Profintern 1930s  

Ships

Name	No	Builder	Laid down	Launched	Comm	Fate
Профинтерн [Profintern] (ex-Светлана [Svetlana]), 10.1939- Красный Крым [Krasnyy Krym]		Russo-Baltic Yd, Revel // Baltic Wks, Petrograd	24.11.1913	11.12.1915	1.7.1928	target 5.1957
Адмирал Бутаков [Admiral Butakov]		Putilov Yd, St. Petersburg	29.11.1913	5.8.1916	---	suspended 1917
Адмирал Спиридов [Admiral Spiridov]		Putilov Yd, St. Petersburg	29.11.1913	9.9.1916	---	completed mercantile 1925
Адмирал Грейг [Admiral Greyg]		Russo-Baltic Yd, Revel // Baltic Wks, Petrograd	7.12.1913	9.12.1916	---	completed mercantile 1926

Technical data

Data variant	as designed	Profintern
Displacement standard, t	---	6693
Displacement normal, t	6800
Displacement full, t	7400	8041
Length, m	154.8 wl 158.4 oa	154.8 wl 158.4 oa
Breadth, m	15.4	15.4
Draught, m	5.60 - 5.70	6.65 max
No of shafts	4	4
Machinery	Svetlana, Admiral Greyg: 4 Brown-Curtis steam turbines, 13 Yarrow-Vulcan boilers Admiral Butakov, Admiral Spiridov: 4 Parsons steam turbines, 13 Yarrow-Vulcan boilers	4 Curtis-AEG-Vulcan steam turbines, 13 Yarrow-Vulcan boilers
Power, h. p.	50000	46300
Max speed, kts	29.5	29
Fuel, t	coal 498 + oil 669	coal 498 + oil 669
Endurance, nm(kts)	200(12)	3350(14)
Armour, mm	belt: 75 - 25, bulkhead: 50, upper belt: 25, decks: 20 + 20, funnel uptakes: 20, CT: 75 sides, 50 roof, shields: 25, ammunition tubes: 25	belt: 75 - 25, bulkhead: 50, upper belt: 25, decks: 20 + 20, funnel uptakes: 20, CT: 75 sides, 50 roof, shields: 25, ammunition tubes: 25
Armament	15 x 1 - 130/53, 4 x 1 - 63/36 Obukhov, 2 - 450 TT (beam, 6), 100 mines	15 x 1 - 130/53, 4 x 1 - 75/48 Canet, 3 x 3 - 450 TT, 90 mines, 1 seaplane (Ju 20, MU-2)
Complement	630	830

Standard scale images

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Project history First turbine-driven cruisers of the Russian fleet, designed taking into account experience of the Russian-Japanese war. They were built by two little differing series Svet

First turbine-driven cruisers of the Russian fleet, designed taking into account experience of the Russian-Japanese war. They were built by two little differing series: Svetlana, Admiral Butakov, Admiral Spiridov and Admiral Greig for Baltic, Admiral Nakhimov, Admiral Lazarev, Admiral Istomin and Admiral Kornilov for Black sea. All 8 ships were laid down prior to the beginning of the First World War, but any of them was completed before revolution of 1917. 24.12.1920 the program has been accepted, according to which Svetlana and Admiral Nakhimov it was supposed to complete under original design.    Black Sea cruisers, according to the design, differed by increased displacement (7600t against 6800), dimensions, and also type and structure of machinery (Parsons turbines and 14 Yarrow boilers instead of 4 Curtis-AEG-Vulkan and 13 Yarrow-Vulkan boilers), in remaining ships were practically identical. Rather low-freeboard hull with a forecastle and a three-funnel outline profile gave them a certain likeness with Novik class destroyers. On trials Profintern made 29.5kts at 6800t displacement and 59200hp power. Chervona Ukraina shown average speed of 29.82kts and maximum 30.9kts To the beginning of Great Patriotic war boilers were converted to pure oil-firing, but speed characteristics nevertheless have notably decreased: so, in 1941 speed did not exceed 27.5kts, and in 1944 Krasny Krym made no more than 22kts.     Protection ensured unvulnerability from gunfire of destroyers. The main 75mm belt reached full ship length and adjoined an upper edge a lower deck. Above it the upper 25mm belt placed. Upper and lower decks had 20mm thickness. The protection of the same thickness covered funnel uptakes below deck level.     Deck-casemates arrangement of artillery and insufficient to measures of the Second World War calibre were a serious lack of the design.     Ship protection as designed: Main 75mm belt had 2.1m height and extended at all length except short part near aft end, closing aft by 50mm bulkhead; aft end of ship was protected by 25mm armour. Upper 25mm belt extended from stem to stern and from main belt to upper deck. Upper and flat main decks had 20m thickness and connected with upper edges of main and upper belts.

Ship protection, Profintern: Main 75mm belt had 2.1m height and extended at all length except short part near aft end, closing aft by 50mm bulkhead; aft end of ship was protected by 25mm armour. Upper 25mm belt extended from stem to stern and from main belt to upper deck. Upper and flat main decks had 20m thickness and connected with upper edges of main and upper belts.

Modernizations

early 1930s, Profintern: + 1 x 3 - 450 TT

12/1936, Profintern: boilers were converted to oil burning only (1050 t of oil); - 4 x 1 - 75/48, 4 x 3 - 450 TT; + 3 x 2 - 100/47 OTO 1928, 2 x 3 - 533 TT

1938, Krasnyy Krym: - seaplane; + 4 x 1 - 45/43 21K, 7 x 1 - 12.7/79

1942, Krasnyy Krym: + 10 x 1 - 37/63 70K, 2 x 4 - 12.7/62

7/1944, Krasnyy Krym: - 4 x 1 - 45/43, 3 x 1 - 12.7/79; + 4 x 1 - 37/63 70K

1945, Krasnyy Krym: + type 291 radar

1/1946, Krasny Krym: 15 x 1 - 130/55, 3 x 2 - 100/47 OTO 1928, 14 x 1 - 37/73 70K, 4 x 1 - 12.7/79, 2 x 4 - 12.7/62, 2 x 3 - 533 TT, 90 mines; type 291 radar

Naval service

8.4.1953 Krasny Krym was reclassified to TS; in 1957 disarmed and 7.5.1957 reformed to test ship OS-20; 11.3.1958 she became accommodation ship PKZ-144 and 7.7.1959 sold for BU.