Home Page World War II Armed Forces — Orders of Battle and Organizations Last Updated 14.11.2014
Imperial Japanese Navy
Patrol Boats
In cooperation with Jeff Donahoo and with thanks to Matthew Jones
The format for names is Japanese style: rank; last name, first name; Japanese name in Kaji;
(and in brackets the officer's graduating class of the Naval Academy at Etajima, if applicable).
(M) Behind the name indicates a merchant marine (civilian) officer.
Rank as was at the date he took command, whether as supervisor or captain.
If an officer is shown as being in command before the ship was commissioned, he was Chief Equipping Officer, becoming Commanding Officer on the date the ship was commissioned.
Dates are given thus: day.month.year
Commanders marked with * are known to have died.
Patrol Boat No. 1    第1号哨戒艇  
   Class: Minekaze  
   Call Sign: JJAQ  
   Builder: Maizuru Navy Yard  
   Ordered under 1917 Program  
   Laid Down: 05.09.1919
   Launched: 31.03.1920
   Completed as Destroyer Shimakaze : 15.11.1920
   Service:  
      DesDiv 5 15.11.19–01.12.22
      DesDiv 4 01.12.22–10.04.23
      DesDiv 4, 2nd DesRon, 2nd Fleet 10.04.23–01.04.40
      Renamed as Patrol Boat No. 1  01.04.1940
      Yokosuka ND 01.04.40–20.11.41
      PB Div 1, Base Force 32, 3rd Fleet 20.11.41–01.05.42
      Yokosuka ND 01.05.42–10.02.43
Fate:  Sunk 12.01.43 by USS Guardfish (SS-217) 10 miles SW Tingwon, Bismarcks (02°51'S, 149°43'E). ? dead; ? saved.
   Removed from Navy List 10.02.1943
   Commanding Officers:  
      LtCdr Arichi Jugoro (33)有地十五郎01.12.19–20.11.22
      LtCdr Eguchi Kihachi (33)江口喜八20.11.22–01.12.22
      Cdr Morita Shigeharu (33)森田重房01.12.22–05.08.23
      LtCdr Ozawa Jisaburo (37)小沢治三郎05.08.23–20.01.25
      Cdr Kobayashi Sonosuke (35)小林宗之助20.01.25–01.12.25
      Cdr Homoto Shigei (36)穂本繁治01.12.25–
      Cdr Nagao Sousuke (36)長尾惣助10.08.27–
      Cdr Fujita Ruitaro (40)藤田類太郎01.12.28–05.09.29
      Cdr Nakase Noboru (45)中瀬 泝01.12.31–01.12.32
      Cdr Nishida Masao (44)西田正雄15.12.33–15.08.34
      LtCdr Shimazui Takemi (47)島居威美15.08.34–
      LtCdr Shiraishi Masayoshi (49)白石長義28.09.36–01.12.36
      LtCdr Furukawa Bunji (49)古川文次01.12.36–28.09.37
      LtCdr Arimoto Terumichi (50)有本輝美智28.09.37–01.12.37
      LtCdr Miyauchi Shinichi (51)宮内新一01.12.37–
Patrol Boat No. 2    第2号哨戒艇   
   Class: Minekaze  
   Call Sign: JJBQ  
   Builder: Maizuru Navy Yard  
   Ordered under 1917 Program  
   Laid Down: 09.01.1919
   Launched: 26.06.1920
   Completed as Destroyer Nadakaze : 30.09.1921
   Service:  
      DesDiv 5 30.09.21–01.12.22
      DesDiv 4 01.12.22–10.04.23
      DesDiv 4, 2nd DesRon, 2nd Fleet 10.04.23–01.04.40
      Renamed as Patrol Boat No. 2  01.04.1940
      Yokosuka Guard Force 01.04.40–20.11.41
      PB Div 1, Base Force 32, 3rd Fleet 20.11.41–01.05.42
      Yokosuka ND 01.05.42–
      1st Maritime Escort, SW Area Fleet 01.04.43–15.11.43
      1st Maritime Escort, General Escort 15.11.43–25.12.43
      Base Force 22, 2nd South Exp, SW Area 25.12.43–02.02.45
      Base Force 22, 2nd South Exp, 10th Area Fleet 02.02.45–15.08.45
Fate:  Sunk 25.07.45 at 18:30 by HMS Stubborn (P-238) in Lombok Strait, 175 miles E Soerabaja, Java (07°07'S, 115°40'E). ? dead; ? saved.
   Removed from Navy List 15.08.1945
   Commanding Officers:  
      LtCdr Eguchi Kihachi (33)江口喜八30.09.21–
      LtCdr Takayama Chuzo (35)高山忠三01.12.23–01.12.24
      LtCdr    Ishido Yuzo (36)石戸勇三01.12.24–20.04.25
      LtCdr Suzuki Kozo (36)鈴木幸三20.04.25–15.10.26
      LtCdr Shimizu Chokichi (37)清水長吉01.12.26–01.03.28
      LtCdr Yamashita Fukashi (36)山下深志01.03.28–23.07.28
      LtCdr Goto Aritomo (38)五藤存知23.07.28–15.01.29
      LtCdr Sakano Minbu (38)坂野民部15.01.29–15.11.29
      LtCdr Ueno Masao (40)上野正雄15.11.29–01.12.31
      LtCdr Narita Moichi (43)成田茂一01.12.31–01.12.32
      Cdr Niimi Kazutaka (40)新美和貴01.12.32–01.05.33
      LtCdr Yamamoto Iwata (46)山本岩多01.05.33–15.11.33
      LtCdr Takeuchi Torashiro (49)竹内虎四郎15.11.35–01.12.36
      LtCdr Kumabe Tsutae (50)隈部 伝01.12.36–01.12.37
      LtCdr Nakasugi Seiji (50)中杉清治01.12.37–02.12.38
      LtCdr Matsubara Takisaburo (52)松原滝三郎02.12.38–
      Lt Magoshi Masahiro (57)馬越正博24.04.40–15.11.40
      Lt Furuya Takuo (57)前田一郎15.11.40–
      *Lt Kito Takejiro (R ) 15.02.43–24.07.45
Patrol Boat No. 31    第31号哨戒艇   
   Class: Momi  
   Call Sign: JJCQ  
   Builder: Kawasaki Shipbuilding Co, Kobe  
   Ordered under 1919 Progam  
   Laid Down: 24.05.1919
   Launched: 13.10.1920
   Completed as Destroyer Kiku : 10.12.1920
   Service:  
      ? 1920–1938
      DesDiv 14 15.12.38–10.12.39
      Reserve 10.12.39–
      Conversion 1940–
      Renamed as Patrol Boat No. 31  01.04.1940
      ?    ?
      PB Div 1, Base Force 32, 3rd Fleet 20.11.41–01.05.42
      ?    ?
Fate:  Sunk 30.03.44 by US aircraft at Palau (07°30'N, 134°30'E). ? dead; ? saved.
   Removed from Navy List 10.05.1944
   Commanding Officers:  
      LtCdr Nishimura Shoji (39)西村祥治01.11.26–01.11.27
      LtCdr Nakagawa Ko (42)中川 浩30.11.29–01.11.30
      LtCdr Shimizu Toshio (46)清水利夫01.11.30–24.10.31
      LtCdr Maekawa Shinchiro (50)前川新一郎01.06.34–15.11.34
      ?    ?
Patrol Boat No. 32    第32号哨戒艇   
   Class: Momi  
   Call Sign: JJDQ  
   Builder: Kawasaki Shipbuilding Co, Kobe  
   Ordered under 1919 Progam  
   Laid Down: 01.04.1920
   Launched: 09.11.1920
   Completed as Destroyer Aoi : 20.12.1920
   Service:  
      ? 1920–1938
      DesDiv 14 15.12.38–10.12.39
      Conversion 1940–
      Renamed as Patrol Boat No. 32  01.04.1940
      ?    ?
      PB Div 1, Base Force 32, 3rd Fleet 20.11.41–23.12.41
Fate:  Beached and sunk 23.12.41 Wake Island (19°17'N, 166°37'E). ? dead; ? saved.
   Removed from Navy List 15.01.1942
   Commanding Officers:  
      LtCdr Chiya Sadae (34)干谷定衛20.11.19–01.12.21
      LtCdr Fujimori Seiichiro (37)藤森清一郎20.07.22–19.08.22
      LtCdr Suzuki Kozo (36)鈴木幸三06.01.25–20.04.25
      LtCdr Sugimoto Michio (41)杉本道雄15.10.26–01.11.27
      LtCdr Itagaki Sakan (39)板垣成紀01.11.27–10.12.28
      LtCdr Setoyama Yasuhide (45)瀬戸山安秀01.12.32–01.11.33
      ?    ?
Patrol Boat No. 33    第33号哨戒艇   
   Class: Momi  
   Call Sign: JJEQ  
   Builder: Uraga Dock Co., Tokyo  
   Ordered under 1919 Progam  
   Laid Down: 28.02.1920
   Launched: 29.10.1920
   Completed as Destroyer Hagi : 20.04.1941
   Service:  
      DesDiv 15 01.06.21–01.12.21
      DesDiv 15, 1st DesRon, 1st Fleet 01.12.21–01.12.37
      DesDiv 15, 4th Fleet 01.12.37–20.02.39
      ?    ?
      Conversion 1940–
      Renamed as Patrol Boat No. 33  01.04.1940
      PB Div 1, Base Force 32, 3rd Fleet 20.11.41–23.12.41
Fate:  Beached and sunk 23.12.41 Wake Island (19°17'N, 166°37'E). ? dead; ? saved.
   Removed from Navy List 15.01.1942
   Commanding Officers:  
      LtCdr Nagai Jitsuyo (33)長井実養01.12.21–01.12.22
      LtCdr Suzukida Kozo (37)鈴木田幸造01.12.22–
      LtCdr Kawase Shiro (38)河瀬四郎01.12.24–20.05.25
      ? 20.05.25–
      LtCdr Kurita Takeo (38)栗田健男02.12.25–01.12.26
      LtCdr Ito Bennosuke (??) 01.12.26–
      LtCdr Shimizu Takio (39)清水他喜雄10.08.27–
      LtCdr Kimura Masatomi (41)木村昌福05.09.29–30.11.29
      LtCdr Shimazaki Toshio (44)島崎利雄15.11.30–01.12.30
      Lt Hirose Sadatoshi (47) 01.12.30–
      Lt Iwase Okuichi (48) 01.12.32–
      LtCdr Orita Tsuneo (49)折田常雄01.10.33–25.04.35
      LtCdr Tobita Kenjiro (50) 01.04.35–
      LtCdr Iwagami Jiichi (50)岩上次一01.12.36–21.02.38
      ?    ?
Patrol Boat No. 34    第34号哨戒艇   
   Class: Momi  
   Call Sign: JJFQ  
   Builder: Isikigawajima Heavy Industries, Tokyo  
   Ordered under 1919 Progam  
   Laid Down: 03.05.1920
   Launched: 21.02.1921
   Completed as Destroyer Susuki : 21.05.1921
   Service:  
      DesDiv 15 01.06.21–01.12.21
      DesDiv 15, 1st DesRon, 1st Fleet 01.12.21–01.12.37
      DesDiv 15, 4th Fleet 01.12.37–20.02.39
      ?    1939–1940
      Conversion 1940–
      Renamed as Patrol Boat No. 34  01.04.1940
      ?    1940–1941
      Saeki Guard Force 01.07.41–20.11.41
      PB Div 1, Base Force 32, 3rd Fleet 20.11.41–01.05.42
      Yokosuka ND 01.05.42–30.11.45
Fate:  Sunk 03.07.44 by US aircraft at Truk ? dead; ? saved.
   Removed from Navy List 30.11.1945
   Commanding Officers:  
      LtCdr Nishikawa Hayami (34)西川速水15.11.21–01.12.22
      LtCdr Kuga Tokuichi (36)久我徳一01.12.22–
      LtCdr Nagao Sousuke (36)長尾惣助10.07.24–01.12.24
      LtCdr Hirose Sueto (39)広瀬末人01.12.24–20.06.27
      LtCdr Takahashi Ichimatsu (40)高橋一松15.11.27–10.12.28
      LtCdr Nakagawa Ko (42)中川 浩10.12.28–03.10.29
      LtCdr Murakami Chonosuke (44)村上暢之助03.10.29–02.11.31
Patrol Boat No. 35    第35号哨戒艇   
   Class: Momi  
   Call Sign: JJGQ  
   Builder: Kawasaki Shipbuilding Co, Kobe  
   Ordered under 1920 Progam  
   Laid Down: 16.10.1920
   Launched: 09.05.1921
   Completed as Destroyer Tsuta : 30.06.1921
   Service:  
   Ordered under 1919 Progam  
      DesDiv 15 01.06.21–01.12.21
      DesDiv 15, 1st DesRon, 1st Fleet 01.12.21–01.12.37
      DesDiv 15, 4th Fleet 01.12.37–20.02.39
      Conversion 1940–
      Renamed as Patrol Boat No. 35  01.04.1940
      PB Div 1, Base Force 32, 3rd Fleet 20.11.41–01.05.42
      Yokosuka ND 01.05.1942
Fate:  Sunk 12.01.45 by US aircraft in Lae Harbor, 20 miles NW Santa Isabel, Solomons (07°16'S, 158°03'E). 92 dead; 52 saved.
   Removed from Navy List 10.02.1943
   Commanding Officers:  
      LtCdr Okuma Masakichi (37)大熊政吉01.12.21–01.12.22
      LtCdr Takeshita Shigeri (35)竹下志計理01.06.23–15.10.23
      LtCdr Sakura Takeo (37)佐倉武夫15.10.23–10.05.24
      LtCdr Goto Aritomo (38)五藤存知10.05.24–01.12.25
      LtCdr Miyatake Shigetoshi (39)宮武重敏01.12.26–
      LtCdr Iwabuchi Jiichi (50)岩上次一21.02.38–01.12.28
      LtCdr Hayakawa Mikio (44)早川幹夫10.12.28–30.11.19
      LtCdr Katsuhara Mitsuyoshi (45)勝原満好30.11.29–01.12.30
      LtCdr Murakami Chonosuke (44)村上暢之助01.12.30–02.11.31
      LtCdr Aoki Kyuji (50)青木久治15.10.37–
Patrol Boat No. 36    第36号哨戒艇   
   Class: Momi  
   Call Sign: JJHQ  
   Builder: Fujinagata Heavy Industries, Osaka  
   Ordered under 1919 Progam  
   Laid Down: 06.12.2019
   Launched: 17.11.1920
   Completed as Destroyer Fuji : 25.05.1921
   Service:  
      DesDiv 15 01.06.21–01.12.21
      DesDiv 15, 1st DesRon, 1st Fleet 01.12.21–01.12.37
      DesDiv 15, 4th Fleet 01.12.37–20.02.39
      ?    1939–1940
      Conversion 1940–
      Renamed as Patrol Boat No. 36  01.04.1940
      ?    1940–1941
      PB Div 1, Base Force 32, 3rd Fleet 20.11.41–
      1st Maritime Escort, SW Area Fleet 01.04.43–15.11.43
      1st Maritime Escort, General Escort 15.11.43–25.12.43
      Base Force 22, 2nd South Exp, SW Area 25.12.43–02.02.45
      Base Force 22, 2nd South Exp, 10th Area Fleet 02.02.45–02.09.45
Fate:  Surrendered damaged 02.09.45 at Soerabaja, Java. Turned over 07.46 to the Netherlands. Scrapped 1947.
   Removed from Navy List 10.08.1946
   Commanding Officers:  
      LtCdr Shibata Genichi (34)柴田源一15.11.21–
      LtCdr Iwahara Morie (36)岩原盛恵01.12.23–20.08.24
      LtCdr Fujita Ruitaro (38)藤田類太郎20.08.24–01.12.26
      LtCdr Takeda Kiyogo (38)武田喜代吾01.02.26–
      LtCdr Shimazaki Toshio (38)島崎利雄10.12.28–01.12.30
      LtCdr Okamoto Yoshisuke (47)岡本義助01.12.31–10.03.32
      LtCdr Takahashi Kameshiro (49)高橋亀四郎30.09.33–15.11.34
      LtCdr Narizawa Chinao (52) 15.09.38–
Narusawa Sennao (52)成沢千直 ? Probably 
Patrol Boat No. 37    第37号哨戒艇   
   Class: Momi  
   Call Sign: JJIQ  
   Builder: Uraga Dock Co., Tokyo  
   Ordered under 1920 Progam  
   Laid Down: 20.11.1920
   Launched: 19.05.1921
   Completed as Destroyer Hishi : 23.03.1922
   Service:  
      DesDiv 27 23.03.22–01.12.22
      DesDiv 27, DesRon1, 1st Fleet 01.12.22–15.12.38
      ?    1938–1940
      Conversion 1940–
      Renamed as Patrol Boat No. 37  01.04.1940
      ?    1940–1941
      2nd Base Force, 3rd Fleet 12.41–24.01.42
Fate:  Sunk 24.01.42 by USS Pope (DD-225) and Parrott (DD-218) off Balikpapan, Borneo (01°24'S, 117°02'E). ? dead; ? saved. Later raised and scrapped.
   Removed from Navy List ?
   Commanding Officers:  
      LtCdr Takahashi    X (35)高橋忠治01.12.22–
      LtCdr Goto Eiji (37)後藤英次01.12.24–01.12.25
      LtCdr Itagaki Sakan (39)板垣成紀01.12.25–01.11.27
      LtCdr Itagaki Sakan (39)板垣成紀24.08.27– 01.02.28
      LtCdr Shinoda Katsukiyo (44)渋谷勝清01.02.28–30.11.29
      LtCdr Kobe Yuji (45)兄部勇次30.11.29–21.11.30
Patrol Boat No. 38    第38号哨戒艇   
   Class: Momi  
   Call Sign: JJJQ  
   Builder: Ishigawajima Heavy Industries, Osaka  
   Ordered under 1920 Progam  
   Laid Down: 26.02.1921
   Launched: 14.03.1922
   Completed as Destroyer Yomogi : 19.08.1922
   Service:  
      ?    1922–1940
      Conversion 1940–
      Renamed as Patrol Boat No. 38  01.04.1940
      ?    1940–1941
      Sasebo Guard Force 10.02.41–
      PB Div 1, Base Force 32, 3rd Fleet 20.11.41–10.02.42
      1st Maritime Escort 07.08.42–
      1st Maritime Escort, General Escort 10.04.44–10.12.44
      1st Escort Fleet 10.12.44–10.03.45
Fate:  Sunk 25.11.44 at 01:25 by USS Atule (SS-403) in Bashi Strait, 120 miles N Cape Engano (20°14'N, 121°40'E). ? dead; 0 saved.
   Removed from Navy List 10.03.1945
   Commanding Officers:  
      LtCdr Chigusa Keikichi (37) 01.12.25–
      LtCdr Fushimi Hiroyoshi (44) 01.12.27–10.12.28
      ?       
      LtCdr Ijuin Matsuji (43)伊集院松治01.11.29–30.11.29
      LtCdr Matsubara Hiroshi (45)松原 博01.12.30–02.11.31
      LtCdr Amano Shigetaka (47)天野重隆02.11.31–17.05.33
      Lt Yamada Tetsuo (49)山田鉄夫17.05.33–01.07.34
      Lt Tashiro Itaru (50)田代 格 ?01.07.34–
      Lt Fujita Hiroshi (50)藤田 浩01.04.35–
      Cdr Kawahara Kinnosuke (39)河原金之助01.05.37–
      Lt Imoto Konosuke [ ?]    01.09.37–01.01.38
      LtCdr Hagio Tsutomu (52)萩尾 力01.01.38–
Patrol Boat No. 39    第39号哨戒艇   
   Class: Momi  
   Call Sign: JJLQ  
   Builder: Fujinagata Zosenho, Oaka  
   Ordered under 1920 Progam  
   Laid Down: 20.12.1920
   Launched: 15.03.1922
   Completed as Destroyer Tade : 31.07.1922
   Service:  
      DesDiv 28 31.07.22–01.12.25
      DesDiv 28, 1st DesRon, 1st Fleet 01.12.25–15.11.35
      Conversion 1940–
      Renamed as Patrol Boat No. 39  01.04.1940
      PB Div 1, Base Force 32, 3rd Fleet 20.11.41–
      1st Maritime Escort, SW Area Fleet 01.04.43–01.07.43
Fate:  Sunk 23.04.43 by USS Seawolf (SS-197) off Yonaguni Island, 153 miles NE of Taiwan (23°48'N, 122°42'E). ?  dead; ? saved.
   Removed from Navy List 01.07.1943
   Commanding Officers:  
      LtCdr Wada Seizo (34)和田省三15.05.22–01.12.22
      LtCdr Ishido Yuzo (36)石戸勇三01.12.22–15.06.23
      LtCdr Ikeda Shichiro (38) 01.12.23–
      LtCdr Takeishi Hideto (38) 10.11.25–
      LtCdr Furuse Kurazo (38) 01.12.25–
      LtCdr Kobayashi Kengo (42)小林謙五01.12.26–14.05.27
      LtCdr Hatakeyama Koichiro (39)畠山耕一郎14.05.27–01.12.27
      LtCdr Kumabe Isamu (42) 01.12.27–
      LtCdr Hirai Taiji (43)平井泰次20.02.29–01.12.30
      LtCdr Sugiura Kaju (46)杉浦嘉十01.12.30–01.12.31
      LtCdr Shoji Kiichiro (43)荘司喜一郎01.12.31–15.11.32
      LtCdr Oda Misao (46) 15.11.32–
      Lt Arimoto Terumichi (50) 15.11.33–
      ? 01.01.36–
      Cdr Kawahara Kinnosuke (39) 01.07.37–
      LtCdr Ieki Konosuke (52) 01.08.37–
      LtCdr Hamanaka Shuichi (51) 01.12.38–
      ? 24.06.39–
Patrol Boat No. 46    第46号哨戒艇   
   Class: Momi  
   Call Sign: JJMQ  
   Ordered under 1921 Progam  
   Laid Down: ?
   Launched: 14.04.1923
   Completed as Destroyer Yugao : 31.05.1924
   Service:  
      ?       
      Renamed as Patrol Boat No. 46  1942
      Kure ND 12.41–20.05.44
      3rd Maritime Escort, Yokosuka ND 20.05.44–10.01.45
Fate:  Sunk 10.11.44 at 09:39 by USS Greenling (SS-213) off Cape Iro, 75 miles SW Yokosuka (34°40'N, 138°34'E). ? dead; ? saved.
   Removed from Navy List 10.01.1945
   Commanding Officers:  
      LtCdr Maruyama Yoshio (36)丸山良雄21.05.24–
      LtCdr Tokutomi Tadao (40)徳富太多雄01.12.25–
      LtCdr Aruga Kosaku (45)有賀幸作01.11.29–01.12.30
      LtCdr Amaya Yoshishige (47)天谷嘉重01.12.30–
      LtCdr Isohisa Kenma (48)磯久研磨15.01.34–15.11.34
Patrol Boat No. 101    第101号哨戒艇   
   Class: Simoon (S class)  
   Builder: Hawthorne Leslie  
   Ordered: Jun.17
   Laid Down: 17.01.1918
   Launched: 05.03.1920
   Completed as British Destroyer HMS Thracian (D.86):01.04.1922
   Commissioned: 25.11.1942
   Service:  
      British Royal Navy 1920–1942
      ?    ?
      Scuttled at Hong Kong 16.12.1941
      Salvaged by Japanese and redesignated as Patrol Boat 101 10.07.1942
      Repaired at No. 2 Repair Facility Hong Kong 10.07.42–25.11.42
      Yokosuka ND 01.10.42–02.09.45
      Reclassified as Training Ship Toku 1 Go 15.02.1944
Fate:  02.09.45 surrendered at Yokosuka. Returned to British control 10.45. Scrapped 02.46 in Hong Kong.
   Removed from Navy List 02.09.1945
   Commanding Officers:  
      Capt Sugimoto Michio (41)杉本安政06.01.43–
      ?      ?
      LtCdr Fukuchi Akiji 01.12.43–?
Patrol Boat No. 102    第102号哨戒艇   
   Class: Clemson  
   Builder: Wm Cramp and Sons, Philadelphia  
   Ordered: ?
   Laid Down: 19.09.1919
   Launched: 04.03.1920
   Completed as US Navy Destroyer Stewart (DD-224):15.09.1920
   Service:  
      US Navy 1919–1942
      Capsized while under repair at Surabaya, Java 20.02.1942
      raised by Japanese Feb.43
      Repaired and commissioned as Patrol Boat No. 102 15.06.1943
      Repaired at Soerabaya, Java 02.43–20.09.43
      2nd South Exp, SW Area Fleet 15.06.43–02.02.45
      2nd South Exp, 10th Area Fleet 02.02.45–30.04.45
      Kure ND 30.04.45–02.09.45
Fate:  02.09.45 surrendered at Saeki. Returned to US control. Sunk as target for US Navy warships 24.05.46 off San Francisco.
   Commanding Officers:  
      Lt Mizutani Tamotsu 15.06.43–07.45
      ? (possibly no CO) 07.45–02.09.45
Patrol Boat No. 103    第103号哨戒艇   
   Class: Lapwing  
   Builder: Standard Shipbuilding, New York  
   Ordered: ?
   Laid Down: 22.08.1917
   Launched: 20.03.1918
   Completed as US Navy Minesweeper USS Finch (AM–9):10.09.1918
   Service:  
      US Navy 1917–1942
      Sunk by Japanese gunfire at Manila, Philippines 11.04.1942
      Raised by Japanese  
      Repaired and commissioned as Patrol Boat No. 103 01.04.1943
      3rd Southern Exp Fleet, SW Area Fleet 01.04.43–12.01.45
Fate:  Sunk 12.01.45 at 1515 by aircraft of TF 38 some 7 miles SW of Cape Padaran. (11°10'N, 108°55'N). 23 dead; ? saved.
   Removed from Navy List 10.03.1945
   Commanding Officers:  
      Lt Imazato Shichiro 09.04.43–12.01.45
Patrol Boat No. 104    第104号哨戒艇   
   Class: Valk  
   Builder: Mij. Feijenoord, Rotterdam  
   Laid Down: ?
   Launched: 19.10.1929
   Completed as NEI Patrol Vessel G.M.s Valk 1930
   Service:  
      Netherlands East Indies Government Navy 1930–1942
      Scuttled as blockship in Tjilatjap harbor, Java: 08.03.1942
      Salvaged by Japanese: 04.1943
      Commissioned as Patrol Boat No. 104 01.09.1943
      Repaired 04.43–31.01.44
      Base Force 21, 2nd South Exp, SW Area 01.09.43–02.02.45
      Base Force 21, 2nd South Exp, 10th Area 05.02.45–30.04.45
      Osaka Guard District 30.04.45–02.09.45
Fate:  Surrendered damaged August 1945 at Maizuru. Sunk 24.08.45 by mine off Nishiyama.
   Removed from Navy List 02.09.1945
   Commanding Officers:  
      Lt Komatsu Takashi 26.02.44–06.45
      Lt Maruyama Haruyoshi 06.45–02.09.45
Patrol Boat No. 105    第105号哨戒艇   
   Builder: F. Schichau GmbH, Free City of Danzig  
   Ordered: ?
   Laid Down: ?
   Launched: ?
   Completed: 1931
Purchased by United States War Department for its Bureau of Insular Affairs as Philippines Customs Cruiser Arayat
07.1931
   Service:  
      Philippines Customs Cruiser 1931–1942
      Captured damaged: 02.01.1942
      Reconstructed at No. 103 Repair Facility at Cavite Naval Base1942
      Commissioned as Patrol Boat No. 105  01.09.1943
      Launched: 15.09.1943
      3rd South Exp, SW Area Fleet 01.09.43–10.01.45
Fate:  Sunk 29.11.44 by USS PT-127 and PT-331 in Ormoc Bay (10°59'N, 124°33). ? dead; ? saved.
   Removed from Navy List 10.01.1945
   Commanding Officers:  
      ?              01.09.43–01.07.44
      Lt Kosaka Minezo 01.07.44–28.11.44
Patrol Boat No. 106    第106号哨戒艇   
   Class: Van Galen  
   Builder: Burgerhaut, Rotterdam  
   Laid Down: 15.08.1928
   Launched: 14.11.1929
   Completed as Netherlands Navy Destroyer HrMs Banckert 14.11.1930
   Service:  
      Royal Netherlands Navy 1928–1942
      Sunk at Soerabaya: 02.03.1942
      Salvaged. Reclassified as Patrol Boat No. 106. Repairs incomplete.20.04.1944
      2nd South Exp, SW Area Fleet 31.07.44–02.02.45
      2nd South Exp, 10th Area Fleet 02.02.45–02.09.45
Fate:  Surrendered incomplete 02.09.45 at Surabaya. Sunk as target ship for Netherlands warships 09.49 in Madura Straits.
   Commanding Officers:  
      Lt Matsuura Mitsutoshi 15.07.44–02.09.45
Patrol Boat No. 107    第107号哨戒艇   
   Builder: Maryland Steel, Sparrrows, Point  
   Laid Down:  
   Launched as civilian tug Monocacy : 10.09.1905
   Purchased by US Navy: 27.07.1917
   Commissioned as US Navy Genesee (Fleet Tug No. 55)10.11.1917
   Redesignated fleet tug USS Genesee (AT-55)17.07.1920
   Service:  
      US Navy 1917–1942
      Scuttled off Corregidor, Philippines 05.05.1942
      Salvaged by Japanese and reclassified as Patrol Boat No. 107 20.04.1944
      3rd South Exp, SW Area Fleet 31.07.44–10.01.45
Fate:  Sunk 06.11.44 by aircraft from TF 38 off Corregidor, Luzon (14°23'N, 120°25'E). 35 dead; ? saved.
   Removed from Navy List 10.01.1945
   Commanding Officers:  
      *Lt Yamada Tsunezo 29.06.44–05.11.44
Patrol Boat No. 108    第108号哨戒艇   
   Class: Valk  
   Builder: Mij. Fijenoord, Rotterdam  
   Ordered: 05.02.1938
   Laid Down: 05.07.1928
   Launched: 21.05.1929
   Completed as NEI Patrol Vessel G.M.s Arend  16.01.1930
   Service:  
      Netherlands East Indies Government Navy 1932–1942
      Scuttled off Tandjong Priok 01.03.1942
      Salvaged by Japanese and reclassified as Patrol Boat No. 108 29.02.44–31.07.44
      Base Force 22, 2nd South Exp, SW Area 31.07.44–02.02.45
      Base Force 22, 2nd South Exp, 10th Area Fleet 02.02.45–10.05.45
Fate:  Sunk 28.03.45 by aircraft of US Navy TF 38 off Maniang Island, 60 miles NNW of Macassar (04°14'S, 121°28'E). 69 dead; ? saved.
   Removed from Navy List 10.05.1945
   Commanding Officers:  
      ?           31.07.44–12.10.44
      Lt Yamada Mitsuru山田 満12.10.44–28.03.45
Patrol Boat No. 109    第109号哨戒艇   
   Class: Fazant  
   Builder: Marine Etablissement te Soerabaja, Soerabaja 
   Laid Down: 1929
   Launched: 1930
   Completed as NEI Patrol Vessel G.M.s Fazant  1931
   Service:  
      Netherlands East Indies Government Navy 1932–1942
      Scuttled off Tandjong Priok 01.03.1942
      Salvaged by Japanese and reclassified as Patrol Boat No. 108 15.10.1944
      2nd South Exp, SW Area Fleet 15.10.44–02.02.45
      2nd South Exp, 10th Area Fleet 02.02.45–02.09.45
Fate:  02.09.45 surrendered. Handed over to Netherlands 21.04.46. Transferred to Indonesia in 1951 as Katrtika . Scrapped 1954.
   Removed from Navy List ?
   Commanding Officers:  
      ?    ?
 

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