I-26
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Class overview | |
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Name | B1 class |
Operators | Imperial Japanese Navy |
Preceded by | Type J3 submarine |
Succeeded by | Type B2 submarine |
Completed | 18 |
Lost | 17 |
Scrapped | 1 |
General characteristics | |
Class and type | Cruiser submarine |
Displacement |
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Length | 108.7 m (356 ft 8 in) overall |
Beam | 9.3 m (30 ft 6 in) |
Draft | 5.1 m (16 ft 9 in) |
Installed power |
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Propulsion |
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Speed |
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Range |
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Test depth | 100 m (330 ft) |
Crew | 94 |
Armament |
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Aircraft carried | 1 × floatplane |
Aviation facilities | 1 × catapult |
The Type B1 submarine (巡潜乙型潜水艦, Junsen Otsu-gata sensuikan, lit. "Cruiser submarine type B"), also called I-15-class submarine (伊一五型潜水艦, I-jū-go-gata sensuikan) was the first group of boats of the Type B cruiser submarines built for the Imperial Japanese Navy (IJN) during the 1940s. In total 20 were built, starting with I-15, which gave the series their alternative name.