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Japanese battleship Ise
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Japanese battleship Ise
Ise (Japanese: 伊勢; named after the ancient Ise Province) was the lead ship of her class of two dreadnought battleships built for the Imperial Japanese Navy (IJN) during the 1910s. Although completed in 1917, she played no role in World War I. Ise supported Japanese forces in the early 1920s during the Siberian Intervention in the Russian Civil War. In 1923, she assisted survivors of the Great Kantō earthquake. The ship was partially modernised in two stages in 1928–1929 and 1931–1932, during which her forward superstructure was rebuilt in the pagoda mast style. Ise was reconstructed in 1934–1937, with improvements to her armour and her propulsion machinery. Afterwards she played a minor role in the Second Sino-Japanese War.
Despite the expensive reconstruction, the ship was considered obsolete by the eve of the Pacific War, and did not see significant action in the early years of the war. Following the loss of most of the IJN's large aircraft carriers during the Battle of Midway in mid-1942, she was rebuilt with a flight deck replacing the rear pair of gun turrets to give her the ability to operate an air group of floatplanes; lack of aircraft and qualified pilots meant that Ise never actually operated aircraft in combat. She participated in the Battle off Cape Engaño in late 1944, where she was one of the ships that decoyed the American carrier fleet supporting the invasion of Leyte away from the landing beaches. Afterwards the ship was transferred to Southeast Asia. In early 1945 Ise participated in Operation Kita, where she transported petrol and other strategic materials to Japan. The ship was then reduced to reserve until American airstrikes in July sank her. After the war Ise was scrapped in 1946–1947.
The Ise class was designed as an improved version of the preceding Fusō class. The ships had a length of 208.18 metres (683 ft) overall, a beam of 28.65 metres (94 ft) and a draught of 8.93 metres (29 ft 4 in) at deep load. They displaced 29,980 long tons (30,460 t) at standard load and 36,500 long tons (37,100 t) at deep load, roughly 650 long tons (660 t) more than the earlier ships. Their crew consisted of 1,360 officers and ratings.
During the ships' modernisation in the 1930s, their forward superstructure was enlarged with multiple platforms added to their tripod masts to create a pagoda mast. Both ships were also given torpedo bulges to improve their underwater protection and to compensate for the weight of the extra armour. These changes increased their overall length to 215.8 metres (708 ft), their beam to 31.75 metres (104 ft 2 in) and their draught to 9.45 metres (31 ft). Their displacement increased by over 5,000 long tons (5,100 t) to 42,001 long tons (42,675 t) at deep load. The crew now numbered 1,376 officers and enlisted men.
The Ise-class ships had two sets of direct-drive steam turbines, each of which drove two propeller shafts, using steam provided by 24 Kampon Ro Gō water-tube boilers. The turbines were designed to produce a total of 45,000 shaft horsepower (34,000 kW) and give the ships a speed of 23 knots (43 km/h; 26 mph). Ise reached 23.6 knots (43.7 km/h; 27.2 mph) from 56,498 shp (42,131 kW) during her sea trials. Each of the boilers consumed a mixture of coal and oil, and the ships carried enough of both to give them a range of 9,680 nautical miles (17,930 km; 11,140 mi) at a speed of 14 knots (26 km/h; 16 mph).
During their 1930s modernisation, the boilers on each ship were replaced by eight new Kampon oil-fired boilers. The turbines were replaced by four geared Kampon turbines with a designed output of 80,000 shp (60,000 kW) intended to increase their speed to 24.5 knots (45.4 km/h; 28.2 mph). On her trials, Ise reached a top speed of 25.3 knots (46.9 km/h; 29.1 mph) from 81,050 shp (60,440 kW). The fuel storage of the ships was increased, which gave them a range of 7,870 nautical miles (14,580 km; 9,060 mi) at a speed of 16 knots (30 km/h; 18 mph), despite the additional weight.
The twelve 35.6-centimetre (14 in) Type 41 guns of the Ise class were mounted in three pairs of twin-gun, superfiring turrets that were numbered one through six from front to rear. The first pair was forward of the main superstructure, the second pair was amidships, and the last ones were aft of the rear superstructure. The ships' secondary armament consisted of twenty 14-centimetre (5.5 in) Type 3 guns in single mounts. Eighteen of these were mounted in casemates in the forecastle and superstructure and the remaining pair were mounted on the deck above them and protected by gun shields. Anti-aircraft defence was provided by four 3rd Year Type 8-centimetre (3 in) anti-aircraft (AA) guns in single mounts. The ships were also fitted with six submerged 53.3-centimetre (21 in) torpedo tubes, three on each broadside.
In 1931–1933 the AA guns were replaced with eight 12.7-centimetre (5 in) Type 89 dual-purpose guns, placed beside the forward superstructure in four twin-gun mounts. Two twin-gun mounts for licence-built Vickers two-pounder (4-centimetre (1.6 in)) light AA guns were also added, while the pair of 14 cm guns on the upper deck were removed.
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Japanese battleship Ise
Ise (Japanese: 伊勢; named after the ancient Ise Province) was the lead ship of her class of two dreadnought battleships built for the Imperial Japanese Navy (IJN) during the 1910s. Although completed in 1917, she played no role in World War I. Ise supported Japanese forces in the early 1920s during the Siberian Intervention in the Russian Civil War. In 1923, she assisted survivors of the Great Kantō earthquake. The ship was partially modernised in two stages in 1928–1929 and 1931–1932, during which her forward superstructure was rebuilt in the pagoda mast style. Ise was reconstructed in 1934–1937, with improvements to her armour and her propulsion machinery. Afterwards she played a minor role in the Second Sino-Japanese War.
Despite the expensive reconstruction, the ship was considered obsolete by the eve of the Pacific War, and did not see significant action in the early years of the war. Following the loss of most of the IJN's large aircraft carriers during the Battle of Midway in mid-1942, she was rebuilt with a flight deck replacing the rear pair of gun turrets to give her the ability to operate an air group of floatplanes; lack of aircraft and qualified pilots meant that Ise never actually operated aircraft in combat. She participated in the Battle off Cape Engaño in late 1944, where she was one of the ships that decoyed the American carrier fleet supporting the invasion of Leyte away from the landing beaches. Afterwards the ship was transferred to Southeast Asia. In early 1945 Ise participated in Operation Kita, where she transported petrol and other strategic materials to Japan. The ship was then reduced to reserve until American airstrikes in July sank her. After the war Ise was scrapped in 1946–1947.
The Ise class was designed as an improved version of the preceding Fusō class. The ships had a length of 208.18 metres (683 ft) overall, a beam of 28.65 metres (94 ft) and a draught of 8.93 metres (29 ft 4 in) at deep load. They displaced 29,980 long tons (30,460 t) at standard load and 36,500 long tons (37,100 t) at deep load, roughly 650 long tons (660 t) more than the earlier ships. Their crew consisted of 1,360 officers and ratings.
During the ships' modernisation in the 1930s, their forward superstructure was enlarged with multiple platforms added to their tripod masts to create a pagoda mast. Both ships were also given torpedo bulges to improve their underwater protection and to compensate for the weight of the extra armour. These changes increased their overall length to 215.8 metres (708 ft), their beam to 31.75 metres (104 ft 2 in) and their draught to 9.45 metres (31 ft). Their displacement increased by over 5,000 long tons (5,100 t) to 42,001 long tons (42,675 t) at deep load. The crew now numbered 1,376 officers and enlisted men.
The Ise-class ships had two sets of direct-drive steam turbines, each of which drove two propeller shafts, using steam provided by 24 Kampon Ro Gō water-tube boilers. The turbines were designed to produce a total of 45,000 shaft horsepower (34,000 kW) and give the ships a speed of 23 knots (43 km/h; 26 mph). Ise reached 23.6 knots (43.7 km/h; 27.2 mph) from 56,498 shp (42,131 kW) during her sea trials. Each of the boilers consumed a mixture of coal and oil, and the ships carried enough of both to give them a range of 9,680 nautical miles (17,930 km; 11,140 mi) at a speed of 14 knots (26 km/h; 16 mph).
During their 1930s modernisation, the boilers on each ship were replaced by eight new Kampon oil-fired boilers. The turbines were replaced by four geared Kampon turbines with a designed output of 80,000 shp (60,000 kW) intended to increase their speed to 24.5 knots (45.4 km/h; 28.2 mph). On her trials, Ise reached a top speed of 25.3 knots (46.9 km/h; 29.1 mph) from 81,050 shp (60,440 kW). The fuel storage of the ships was increased, which gave them a range of 7,870 nautical miles (14,580 km; 9,060 mi) at a speed of 16 knots (30 km/h; 18 mph), despite the additional weight.
The twelve 35.6-centimetre (14 in) Type 41 guns of the Ise class were mounted in three pairs of twin-gun, superfiring turrets that were numbered one through six from front to rear. The first pair was forward of the main superstructure, the second pair was amidships, and the last ones were aft of the rear superstructure. The ships' secondary armament consisted of twenty 14-centimetre (5.5 in) Type 3 guns in single mounts. Eighteen of these were mounted in casemates in the forecastle and superstructure and the remaining pair were mounted on the deck above them and protected by gun shields. Anti-aircraft defence was provided by four 3rd Year Type 8-centimetre (3 in) anti-aircraft (AA) guns in single mounts. The ships were also fitted with six submerged 53.3-centimetre (21 in) torpedo tubes, three on each broadside.
In 1931–1933 the AA guns were replaced with eight 12.7-centimetre (5 in) Type 89 dual-purpose guns, placed beside the forward superstructure in four twin-gun mounts. Two twin-gun mounts for licence-built Vickers two-pounder (4-centimetre (1.6 in)) light AA guns were also added, while the pair of 14 cm guns on the upper deck were removed.
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