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Chervona Ukraina late 1930s

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comm	Fate
Червона Украина [Chervona Ukraina] (ex-Адмирал Нахимов [Admiral Nakhimov)			Russud, Nikolayev	31.10.1913	7.11.1915	21.3.1927	sunk 12.11.1941
Красный Кавказ [Krasnyy Kavkaz] (ex-Адмирал Лазарев [Admiral Lazarev])			Russud, Nikolayev	31.10.1913	28.5.1916	25.1.1932	sunk as target 21.11.1952
Адмирал Корнилов [Admiral Kornilov]			Russud, Nikolayev	7.1914	28.10.1922	---	BU incomplete 1932
Адмирал Истомин [Admiral Istomin]			Russud, Nikolayev	7.1914	---	---	BU incomplete 1922

Technical data

Data variant	as designed	Chervona Ukraina	Krasnyy Kavkaz
Displacement standard, t	---	7480	7440
Displacement normal, t	7600
Displacement full, t	8200	8268	8888
Length, m	163.2 wl 166.8 oa	163.2 wl 166.8 oa	163.2 wl 169.5 oa
Breadth, m	15.7	15.7	15.7
Draught, m	6.07 max	6.20 max	6.60 max
No of shafts	4	4	4
Machinery	4 Brown-Parsons steam turbines, 14 Yarrow boilers	4 Brown-Parsons steam turbines, 14 Yarrow boilers	4 Brown-Parsons steam turbines, 10 Yarrow boilers
Power, h. p.	60000	55000	55000
Max speed, kts	29.5	29	29
Fuel, t	coal 498 + oil 669	coal 498 + oil 669	oil 1000
Endurance, nm(kts)	2000(12)	2700(14)	1490(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	belt: 75 - 25, bulkhead: 50, upper belt: 25, decks: 25 + 20, funnel uptakes: 20, CT: 75 sides, 50 roof, turrets: 25, barbettes: 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, 2 - 450 TT (beam, 6), 90 mines, 1 seaplane (Ju 20, MU-2)	4 x 1 - 180/56 MK-1-180, 4 x 1 - 102/43 B-2, 4 x 1 - 7.6/94, 4 x 3 - 450 TT, 90 - 100 mines, 1 catapult, 2 seaplanes (KR-1)
Complement	630	830	850

Standard scale images

Graphics

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: 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

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, Chervona Ukraina: 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, Krasnyy Kavkaz: 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 25mm deck and 20mm flat main deck were connected with upper edges of main and upper belts. Turrets and barbettes had 25mm protection.

Modernizations

1932, Chervona Ukraina: - 2 - 450 TT; + 4 x 3 - 450 TT

1935, Krasnyy Kavkaz: - 4 x 1 - 102/43; + 4 x 2 - 100/47 OTO 1928, 4 x 1 - 45/43 21K

1936, Chervona Ukraina: - 4 x 1 - 75/48; + 3 x 2 - 100/47 OTO 1928

1940, Krasnyy Kavkaz: - 1 catapult, 2 seaplanes, 4 x 1 - 7.6/94; + 6 x 1 - 12.7/79, 2 x 4 - 7.6/94

5/1941, Chervona Ukraina: boilers were converted to oil burning only (full oil stowage was 950 t); - seaplane; + 4 x 1 - 45/43 21K, 7 x 1 - 12.7/79

early 1942, Krasnyy Kavkaz: + 4 x 1 - 37/63 70K

5/1942, Krasnyy Kavkaz: + 2 x 2 - 100/47 OTO 1928, 2 x 1 - 76/52 34K, 6 x 1 - 20/70 Oerlikon Mk IV

late 1942, Krasnyy Kavkaz: - 2 x 4 - 7.6/94; + 2x 4 - 12.7/62

1944, Krasnyy Kavkaz: - 6 x 1 - 20/70; + 6 x 1 - 37/63 70K

1/1945, Krasnyy Kavkaz: - 4 x 1 - 45/43; + 4 x 1 - 37/63 70K

Spring 1945, Krasnyy Kavkaz: - 2 x 1 - 76/52, 2 x 4 - 12.7/62, 6 x 1 - 12.7/79

1/1946, Krasny Kavkaz: 4 x 1 - 180/59 MK-1-180, 6 x 2 - 100/47 OTO 1928, 14 x 1 - 37/73 70K, 4 x 3 - 450 TT, 90 - 100 mines

Naval service

Chervona Ukraina 12.11.1941 was sunk by German Ju 87 bombers in Sevastopol harbour. The wreck was raised 3.11.1947, then it was used as training hulk, 10.5.1952 it was put aground at Bakaya plait and converted into a target.

12.5.1947 Krasny Kavkaz was re-rated to TS; in the spring of 1952 to target ship and 21.11.1952 was sunk at missile tests.