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CB Izmail / Ishmael battle cruiser

In appearance, the battle cruisers were slightly different from battleships, in the presence of forecastle bunk casemates for eight guns. The rest of the demand for designs observed. Bow turret, mounted on the forecastle and artillery of the second tier, were much less exposed to flooding with water, they can be used in rough weather. Displacement was 32,500 tons, dimensions 224 meters long [728 feet] x 30 meters beam, 8 meters draft. The armor belt had a thickness of 237.5 mm, with turrets: 300mm wall and roof 200mm. Artillery weapons included 12 356-mm guns in four three-gun turrets, 24 130-mm guns in casemates, and 4 anti-aircraft [protivoaeroplannye] 63.5-mm cannon. The total design capacity of the engines was equal to 66,000 hp. The ship's speed was 26.5 knot, boosting to 28 knots, with an estimated cruising range of 2,280 miles at full speed.

For such ships, the Baltic was a bit crowded. They, of course, could be used in the war, but they were intended for the Pacific Ocean. The four ships were laid down in October 1913. Launching the battle cruiser "Ishmael" was held June 9, 1915, "Borodino" and "Kinburn" was launched on 18 June and 17 October 1915 respectively. Launching "Navarino" was on 27 October 1916. On 11 October 1917 the Provisional Government suspended the construction of "Borodino", "Kinburn" and "Navarino". "Ishmael" stopped building Dec. 1, 1917.

Soviet Period Reconstruction Proposals

As for the unfinished Baltic battlecruisers "Borodino", "Navarino" and "Kinburn", the Workers Defence Council by its decision of July 19, 1922 determined that they should be excluded from lists of the fleet and allowed their sale abroad. They were acquired by a German company for cutting metal. There remained "Ishmael", which turned out to be the greatest readiness. At the first opportunity the Navy wanted to finish the ship, arming with 406-mm artillery of two barrels in the turret. The interesting thing was that the native 356 mm and 406-mm had not yet been developed by industry. Even in Imperial time Russian industry mastered the only equipment purchased in England. All the guns were ordered from Vickers. Part of the guns was delivered to Russia and 24 remained in England. There were two 406-mm guns, ordered, apparently for tests with the subsequent installation on advanced Dreadnoughts. This idea was scrapped.

The four battlecruisers in the country, had money been spent for their modernization by the mid-1930, would have looked quite respectable. And some the boilers from "Ishmael" were used in the modernization of the battleship "October Revolution", 3 x 356-mm guns were installed on railway platforms and included in the artillery coastal defense of the Baltic Fleet. By analogy with "Democracy" it can be assumed these would look like battle cruisers. In the Baltic, they would, of course, a bit crowded. When their construction posed the problem of the passage of Danish straits. Apparently, they were destined for the Pacific Ocean. These ships, with their enormous power in the situation during the Second World War, could have been used successfully in the North, because once again there was raised the question of supplying the Soviet Union with everything needed, to protect the convoys.

Name Keel
 Laid
Launch Comm Builder Notes
Izmail19 Dec 191222 Jun 1915-Baltic Work suspended
65% complete Oct 1917.
Scrapped 1932
Kinburn19 Dec 191230 Oct 1915-Baltic Work suspended
57% complete October 1917.
Scrapped 1923
Borodino19 Dec 191231 Jul 1915-Admiralty Works Work suspended
52% complete October 1917.
Scrapped 1923
Navarin19 Dec 19129 Nov 1916-Admiralty Works Work suspended
22% complete October 1917.
Scrapped 1923

Possible upgrade option battleships such as "Ishmael"

"Ishmael" Recovery Aircraft Carrier

With the "Ishmael" it was decided to proceed with one of the variants - the recovery aircraft carrier. Thus, in March 1925, focusing on foreign experience converting battle cruisers and light cruisers, the Executive management staff developed a "Tactical RKKF aircraft carrier", which was reconstructed elements of the battlecruiser Ishmael". Compliance was considered critical for speed of tactical elements and was much higher than the full speed of battleships, "so as to meet their special tasks the aircraft carrier [aviamatka] will separate from the battleships and her condition is joining them in the shortest possible time". The job entailed a strong artillery and air group consisting of 12 torpedobombovozov, 12 fighters, 6 Scouts and 5 aircraft special purpose (artillery spotting). Two options were either to maintain the existing protection or replacement witg 237 mm armor plates of the main belt at 76-mm. Interestingly, 51-64-mm armor was designed for flight deck in order to protect "located underneath the hangars from air attacks.

Approximate displacement of the future aircraft carrier was 20,000-22,000 tons, overall length 224 meters [728 Feet], speed of about 27 knots, the total number of aircraft is 50. Artillery armament consisted of 8 x 180 mm, 8 x 102-mm artillery shells and several anti-aircraft rapid-fire guns. Alteration of "Ishmael" in the aircraft carrier was approved July 6, 1925 with the schematic design led NTK UMVS. However, March 16, 1926 all the works were suspended and the fate of "Ishmael" was finally solved the ship was scrapped.

battlecruiser "Ishmael" as aviamatku (aircraft carrier). 1925



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Page last modified: 04-08-2017 17:24:26 ZULU