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FIGHTING SHIPS OF THE WORLD
JAPAN
CONVERTED MERCHANT VESSELS
auxiliary submarine chasers of WW II


Ships


Name

Launched // Comm.

Builder

Tonnage, BRT

Dimensions, m

Speed, kts

Engine, Power hp

Armament

Fate

博洋丸 [Hakuyo Maru] 6.8.1929 // 2.1944 Kawasaki 1327 68.5x10.9x6.1   1diesel, 980   sunk 20.3.1944
高征丸 [Kosei Maru] 7.1915 // 2.1943 Henderson 1026 76.3x10.0x5.4   1VTE   returned 3.1945


100 - 1000 t displacement/ BRT tonnage vessels


Akakura Maru 5-go (1944, 245, 1.1945 - 1.1945), Ayukawa Maru (1925, 198, 10.1940 - 14.2.1945), Bandai Maru 2-go (1943, 233, 1.1945 - 8.1945), Bandai Maru 3-go (1944, 233, 5.1945 - 13.8.1945), Banshu Maru 53-go (1920, 267, 10.1940 - 30.7.1945), Chokai Maru 7-go (1944, 233, 5.1945 - 8.1945), Chokai Maru 8-go (1943, 238, 6.1945 - 8.1945), Chokai Maru 9-go (1943, 239, 6.1945 - 8.1945), Daiko Maru (1941, 897, 2.1943 - 4.7.1944), Daito Maru 1-go (1907, 109, 2.1942 - 8.1945), Ebisu Maru (1919, 175, 1.1945 - 8.1945), Eifu Maru (1923, 216, 2.1944 - 12.9.1944), Fuji Maru (1932, 703, 12.1942 - 25.3.1945), Fukugawa Maru 7-go (1944, 270, 6.1945 - 31.8.1945), Fukushima Maru (, 109, 2.1942 - 18.4.1945), Fumi Maru (1938, 359, 9.1941 - 8.1945), Fumi Maru 3-go (1940, 369, 8.1941 - 30.1.1944), Fuyo Maru (1922, 216, 2.1944 - 8.1945), Ganjitsu Maru 1-go (1926, 216, 10.1940 - 14.1.1943), Geiyo Maru (1912, 199, 2.1942 - 8.8.1945), Giso Maru 3-go (1943, 228, 6.1945 - 8.1945), Giso maru 8-go (1944, 228, 5.1945 - 8.1945), Giso Maru 12-go (1943, 238, 5.1945 - 8.1945), Giso Maru 15-go (1944, 237, 5.1945 - 8.1945), Giso Maru 16-go (1944, 237, 5.1945 - 8.1945), Giso Maru 40-go (1943, 273, 6.1945 - 27.7.1945), Hakusan Maru 2-go (1935, 100, 2.1944 - 16.6.1945), Hakushu Maru (1938, 218, 1.1945 - 8.1945), Hakuyo Maru (, 219, 5.1944 - 11.1.1945), Hayatomo Maru (1924, 697, 12.1942 - 8.1945), Hino Maru 13-go (, 250, 1.1945 - 8.1945), Hino Maru 14-go (, 250, 1.1945 - 8.1945), Hino Maru 23-go (, 250, 1.1945 - 8.1945), Hino Maru 24-go (1944, 240, 1.1945 - 5.1945), Hino Maru 25-go (1944, 247, 1.1945 - 5.8.1945), Hino Maru 31-go (, 240, 1.1945 - 5.1945), Hino Maru 32-go (, 240, 1.1945 - 5.1945), Hino Maru 43-go (, 258, 1.1945 - 7.6.1945), Hino Maru 48-go (, 250, 1.1945 - 5.1945), Hino Maru 62-go (, 240, 1.1945 - 8.1945), Hino Maru 63-go (, 250, 1.1945 - 8.1945), Hinode Maru 15-go (1920, 220, 12.1943 - 14.9.1944), Kaijo Maru 7-go (1917, 174, 1.1945 - 8.1945), Kaiko Maru (1921, 233, 2.1944 - 13.4.1945), Kainan Maru (1939, 524, 7.1943 - 21.3.1945), Kaiun Maru (1912, 135, 12.1943 - 8.1945), Kamo Maru (1920, 234, 2.1944 - 18.7.1944), Kamui Maru 4-go (1944, 248, 5.1945 - 8.1945), Kamui Maru 7-go (1944, 238, 6.1945 - 8.1945), Kamui Maru 8-go (1944, 260, 6.1945 - 8.1945), Kamui Maru 9-go (1944, 238, 1.1945 - 20.8.1945), Kasuga Maru (1920, 219, 2.1944 - 5.3.1945), Keizan Maru 1-go (1944, 260, 6.1945 - 8.1945), Keizan Maru 6-go (1944, 248, 1.1945 - 21.8.1945), Keyzan Maru 7-go (1944, 233, 1.1945 - 8.1945), Keizan Maru 8-go (1944, 248, 1.1945 - 8.1945), Kiku Maru (1920, 233, 2.1944 - 4.3.1945), Kiri Maru 2-go (1944, 272, 6.1945 - 8.1945), Kiri Maru 3-go (1944, 261, 5.1945 - 8.1945), Kiyo Maru (1929, 127, 1.1944 - 19.3.1945), Kojin Maru 5-go (1944, 251, 6.1945 - 8.1945), Kochi Maru (1938, 199, 1.1944 - 8.1945), Kunimi Maru 8-go (1944, 248, 5.1945 - 8.1945), Kurama Maru (1921, 233, 2.1944 - 8.7.1944), Kyo Maru 2-go (1938, 340, 12.1940 - 7.8.1944), Kyo Maru 6-go (1938, 340, 9.1941 - 27.11.1943), Kyo Maru 7-go (1938, 340, 9.1941 - 26.12.1944), Kyo Maru 8-go (1938, 340, 9.1941 - 23.2.1944), Kyo Maru 10-go (1938, 340, 9.1941 - 23.2.1944), Kyo Maru 11-go (1938, 385, 10.1940 - 2.3.1942), Kyo Maru 12-go (1940, 194, 5.1941 - 12.9.1944), Kyo Maru 13-go (1940, 340, 5.1941 - 26.1.1945), Miikesan Maru 12-go (1941, 182, 1.1945 - 8.1945), Misago Maru (1931, 154, 2.1944 - 13.8.1944), Misago Maru 2-go (1920, 265, 12.1943 - 2.9.1944), Miyatake Maru 5-go (1939, 153, 1.1945 - 25.1.1945), Mogami Maru (1940, 498, 12.1943 - 12.9.1944), Myoken Maru (1931, 173, 1.1945 - 12.6.1945), Nagato Maru (1936, 279, 12.1940 - 10.10.1944), Nanho Maru (1938, 122, 5.1944 - 31.3.1945), Nunobiki Maru (1920, 219, 2.1944 - 8.1945), Oi Maru (1939, 396, 5.1944 - 10.6.1944), Ryojun Maru (1926, 123, 2.1944 - 26.7.1944), Seki Maru 2-go (1938, 359, 9.1941 - 8.1945), Senga Maru 3-go (1918, 169, 1.1945 - 5.1945), Shinan Maru (1935, 111, 5.1944 - 30.3.1945), Shinyo Maru (1937, 235, 2.1944 - 4.1944), Shirogami Maru 9-go (1944, 238, 1.1945 - 8.1945), Shodoshimasan Maru (1944, 256, 6.1945 - 8.1945), Shonan Maru 1-go (1938, 350, 9.1941 - 15.4.1945), Shonan Maru 2-go (1938, 350, 9.1941 - 8.1945), Shonan Maru 3-go (1938, 350, 8.1941 - 20.6.1944), Shonan Maru 5-go (1938, 350, 9.1941 - 23.8.1944), Shonan Maru 6-go (1938, 355, 9.1941 - 30.1.1944), Shonan Maru 7-go (1938, 355, 10.1941 - 21.5.1944), Shonan Maru 8-go (1938, 355, 12.1941 - 8.1945), Shonan Maru 10-go (1938, 350, 8.1941 - 1.2.1942), Shonan Maru 11-go (1938, 350, 8.1941 - 8.1945), Shonan Maru 12-go (1939, 355, 10.1941 - 30.4.1943), Shonan Maru 15-go (1939, 355, 9.1941 - 17.2.1944), Shonan Maru 17-go (1940, 355, 12.1940 - 8.1945), Shoho Maru (1927, 176, 2.1944 - 28.6.1944), Showa Maru (1928, 187, 10.1940 - 25.9.1944), Showa Maru 2-go (1930, 194, 12.1940 - 29.3.1945), Showa Maru 3-go (1926, 222, 10.1940 - 26.7.1944), Showa Maru 5-go (1924, 219, 10.1940 - 25.7.1944), Showa Maru 6-go (1925, 217, 12.1940 - 6.8.1943), Shukusei Maru (, 470, 7.1943 - 8.1945), Tahei Maru 2-go (1943, 247, 5.1945 - 8.1945), Tahei Maru 4-go (1943, 248, 5.1945 - 8.1945), Tahei Maru 5-go (1943, 247, 6.1945 - 8.1945), Tahei Maru 6-go (1944, 248, 5.1945 - 9.8.1945), Tahei maru 7-go (1943, 248, 5.1945 - 13.8.1945), Taihei Maru 1-go (1943, 247, 1.1945 - 8.1945), Takakura Maru 3-go (1944, 238, 5.1945 - 8.1945), Takao Maru (1930, 189, 5.1944 - 12.9.1944), Takunan Maru 2-go (1937, 343, 9.1941 - 8.1945), Takunan Maru 3-go (1937, 343, 5.1944 - 8.1945), Takunan Maru 5-go (1937, 343, 12.1940 - 8.1945), Takunan Maru 6-go (1937, 343, 8.1940 - 10.8.1945), Takunan Maru 7-go (1937, 343, 8.1940 - 5.12.1943), Takunan Maru 8-go (1937, 343, 5.1944 - 8.1945), Takunan Maru 10-go (1937, 343, 12.1941 - 30.1.1945), Tama Maru (1939, 396, 5.1944 - 8.4.1945), Tama Maru 6-go (1936, 275, 5.1944 - 9.8.1944), Tama Maru 7-go (1936, 275, 5.1944 - 18.6.1944), Tama Maru 8-go (1936, 279, 8.1940 - 22.2.1944), Tatsutaka Maru 35-go (1944, 255, 6.1945 - 8.1945), Tatsutaka Maru 61-go (1944, 262, 5.1945 - 8.1945), Terukaze Maru (1936, 259, 12.1943 - 4.11.1944), Tokachi Maru (1940, 498, 12.1943 - 4.5.1945), Tonan Maru (1927, 100, 12.1943 - 24.7.1944), Toshi Maru 3-go (1937, 298, 8.1940 - 8.1945), Ujina Maru (1920, 227, 2.1944 - 5.3.1945), Uruppu Maru (1926, 224, 2.1944 - 31.10.1944), Yatsushiro Maru (1930, 397, 12.1943 - 14.3.1945), Yusen Maru 11-go (, 245, 1.1945 - 5.3.1945), Yusen Maru 22-go (, 245, 6.1945 - 29.6.1945), Yusen Maru 26-go (1944, 260, 6.1945 - 8.1945), Yusen Maru 27-go (, 250, 1.1945 - 27.3.1945), Yusen Maru 31-go (, 245, 1.1945 - 27.4.1945), Yusen Maru 34-go (1944, 246, 5.1945 - 18.9.1945), Yusen Maru 41-go (, 252, 5.1945 - 26.7.1945), Yusen Maru 42-go (1944, 260, 5.1945 - 8.1945), Yusho Maru 10-go (1941, 184, 2.1944 - 8.1945), Zao Maru 1-go (1943, 247, 6.1945 - 8.1945), Zao Maru 2-go (6/1945 - 8.1945), Zao Maru 8-go (6/1945 - 9.8.1945), Zao Maru 9-go (1943, 247, 5.1945 - 8.1945), Zuiho Maru (1930, 183, 6.1944 - 8.1945), Zuiyo Maru (1937, 129, 2.1944 - 8.1945)

Standard scale images


<i>Kyo Maru 11-go</i> 1942
Kyo Maru 11-go 1942
<i>Shonan Maru 7-go</i> 1942 more than 1000 BRT
Shonan Maru 7-go 1942 more than 1000 BRT


Project history

Commercial vessels, converted to submarine chasers. There were mostly former whalers and trawlers.

Modernizations

None.