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class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><table class="infobox" style="width:25.5em;border-spacing:2px;"> <tbody><tr> <td colspan="2" style="text-align:center;line-height:1.5em;"><span typeof="mw:File"><a href="/wiki/File:I-26_Japanese_submarine.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f6/I-26_Japanese_submarine.jpg/300px-I-26_Japanese_submarine.jpg" decoding="async" width="300" height="100" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f6/I-26_Japanese_submarine.jpg/450px-I-26_Japanese_submarine.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f6/I-26_Japanese_submarine.jpg/600px-I-26_Japanese_submarine.jpg 2x" data-file-width="620" data-file-height="207" /></a></span><div><i>I-26</i></div> </td></tr><tr><th colspan="2" style="background-color:#C3D6EF;color:inherit;text-align:center;vertical-align:middle;font-size:110%;">Class overview</th></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Name</td><td>B1 class</td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Operators</td><td><span typeof="mw:File"><a href="/wiki/File:Naval_Ensign_of_Japan.svg" class="mw-file-description" title="Japanese Navy Ensign"><img alt="Japanese Navy Ensign" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Naval_Ensign_of_Japan.svg/20px-Naval_Ensign_of_Japan.svg.png" decoding="async" width="20" height="13" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Naval_Ensign_of_Japan.svg/30px-Naval_Ensign_of_Japan.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Naval_Ensign_of_Japan.svg/40px-Naval_Ensign_of_Japan.svg.png 2x" data-file-width="900" data-file-height="600" /></a></span>Imperial Japanese Navy</td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Preceded by</td><td><a href="/wiki/Junsen_type_submarine#Junsen_III_(I-7_class)" title="Junsen type submarine">Type J3 submarine</a></td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Succeeded by</td><td><a href="/wiki/Type_B_submarine#Type-B_Mod.1_(I-40_class)" title="Type B submarine">Type B2 submarine</a></td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Completed</td><td>18</td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Lost</td><td>17</td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Scrapped</td><td>1</td></tr> <tr><th colspan="2" style="background-color:#C3D6EF;color:inherit;text-align:center;vertical-align:middle;font-size:110%;">General characteristics</th></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Class and type</td><td><a href="/wiki/Cruiser_submarine" title="Cruiser submarine">Cruiser submarine</a></td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Displacement</td><td><ul style="list-style:none; margin:0;"> <li style="padding-left: .4em; text-indent: -.4em;">2,631 tonnes (2,589 long tons) surfaced</li> <li style="padding-left: .4em; text-indent: -.4em;">3,713 tonnes (3,654 long tons) submerged</li> </ul></td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Length</td><td>108.7 m (356 ft 8 in) overall</td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Beam</td><td>9.3 m (30 ft 6 in)</td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Draft</td><td>5.1 m (16 ft 9 in)</td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Installed power</td><td><ul style="list-style:none; margin:0;"> <li style="padding-left: .4em; text-indent: -.4em;">12,400 <a href="/wiki/Horsepower#Brake_horsepower" title="Horsepower">bhp</a> (9,200 kW) (diesel)</li> <li style="padding-left: .4em; text-indent: -.4em;">2,000 hp (1,500 kW) (<a href="/wiki/Electric_motor" title="Electric motor">electric motor</a>)</li> </ul></td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Propulsion</td><td><ul style="list-style:none; margin:0;"> <li style="padding-left: .4em; text-indent: -.4em;"><a href="/wiki/Diesel-electric" class="mw-redirect" title="Diesel-electric">Diesel-electric</a></li> <li style="padding-left: .4em; text-indent: -.4em;">2 × <a href="/wiki/Diesel_engine" title="Diesel engine">diesel engine</a></li> <li style="padding-left: .4em; text-indent: -.4em;">1 × electric motor</li> </ul></td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Speed</td><td><ul style="list-style:none; margin:0;"> <li style="padding-left: .4em; text-indent: -.4em;">23.5 <a href="/wiki/Knot_(unit)" title="Knot (unit)">knots</a> (43.5 km/h; 27.0 mph) surfaced</li> <li style="padding-left: .4em; text-indent: -.4em;">8 knots (15 km/h; 9.2 mph) submerged</li> </ul></td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Range</td><td><ul style="list-style:none; margin:0;"> <li style="padding-left: .4em; text-indent: -.4em;">14,000 <a href="/wiki/Nautical_mile" title="Nautical mile">nmi</a> (26,000 km; 16,000 mi) at 16 knots (30 km/h; 18 mph) surfaced</li> <li style="padding-left: .4em; text-indent: -.4em;">96 nmi (178 km; 110 mi) at 3 knots (5.6 km/h; 3.5 mph) submerged</li> </ul></td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Test depth</td><td>100 m (330 ft)</td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Crew</td><td>94</td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Armament</td><td><ul style="list-style:none; margin:0;"> <li style="padding-left: .4em; text-indent: -.4em;">6 × bow 533 mm (21 in) <a href="/wiki/Torpedo_tubes" class="mw-redirect" title="Torpedo tubes">torpedo tubes</a></li> <li style="padding-left: .4em; text-indent: -.4em;">1 × <a href="/wiki/14_cm/40_11th_Year_Type_naval_gun" title="14 cm/40 11th Year Type naval gun">14 cm (5.5 in)</a> <a href="/wiki/Deck_gun" title="Deck gun">deck gun</a></li> <li style="padding-left: .4em; text-indent: -.4em;">2 × single <a href="/wiki/Type_96_25_mm_AT/AA_Gun" class="mw-redirect" title="Type 96 25 mm AT/AA Gun">25 mm (1 in) Type 96</a> <a href="/wiki/Anti-aircraft_gun" class="mw-redirect" title="Anti-aircraft gun">anti-aircraft guns</a></li> </ul></td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Aircraft carried</td><td>1 × <a href="/wiki/Floatplane" title="Floatplane">floatplane</a></td></tr> <tr style="vertical-align:top;"><td style="font-weight: bold">Aviation facilities</td><td>1 × <a href="/wiki/Aircraft_catapult" title="Aircraft catapult">catapult</a></td></tr> </tbody></table> <p>The <b>Type B1 submarine</b><span style="font-weight: normal"> (<span title="Japanese-language text"><span lang="ja">巡潜乙型潜水艦</span></span>, <span title="Hepburn transliteration"><i lang="ja-Latn">Junsen Otsu-gata sensuikan</i></span>, lit. "Cruiser submarine type B")</span>, also called <b><i>I-15</i>-class submarine</b><span style="font-weight: normal"> (<span title="Japanese-language text"><span lang="ja">伊一五型潜水艦</span></span>, <span title="Hepburn transliteration"><i lang="ja-Latn">I-jū-go-gata sensuikan</i></span>)</span> was the first group of boats of the <a href="/wiki/Type_B_submarine" title="Type B submarine">Type B</a> <a href="/wiki/Cruiser_submarine" title="Cruiser submarine">cruiser submarines</a> built for the <a href="/wiki/Imperial_Japanese_Navy" title="Imperial Japanese Navy">Imperial Japanese Navy</a> (IJN) during the 1940s. In total 20 were built, starting with <a href="/wiki/Japanese_submarine_I-15" title="Japanese submarine I-15"><i>I-15</i></a>, which gave the series their alternative name. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Design_and_description">Design and description</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Type_B1_submarine&action=edit&section=1" title="Edit section: Design and description"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The Type B submarines were derived from the earlier KD6 sub-class of the <a href="/wiki/Kaidai-class_submarine" class="mw-redirect" title="Kaidai-class submarine"><i>Kaidai</i> class</a> and were equipped with an aircraft to enhance their scouting ability. They <a href="/wiki/Displacement_(ship)" title="Displacement (ship)">displaced</a> 2,631 tonnes (2,589 long tons) surfaced and 3,713 tonnes (3,654 long tons) submerged. The submarines were 108.7 meters (356 ft 8 in) long, had a <a href="/wiki/Beam_(nautical)" title="Beam (nautical)">beam</a> of 9.3 meters (30 ft 6 in) and a <a href="/wiki/Draft_(hull)" title="Draft (hull)">draft</a> of 5.1 meters (16 ft 9 in). They had a diving depth of 100 meters (330 ft).<sup id="cite_ref-b4_1-0" class="reference"><a href="#cite_note-b4-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>For surface running, the boats were powered by two 6,200-<a href="/wiki/Horsepower#Brake_horsepower" title="Horsepower">brake-horsepower</a> (4,623 kW) <a href="/wiki/Diesel_engine" title="Diesel engine">diesel engines</a>, each driving one <a href="/wiki/Propeller_shaft" class="mw-redirect" title="Propeller shaft">propeller shaft</a>. When submerged each propeller was driven by a 1,000-horsepower (746 kW) <a href="/wiki/Electric_motor" title="Electric motor">electric motor</a>. They could reach 23.6 <a href="/wiki/Knot_(unit)" title="Knot (unit)">knots</a> (43.7 km/h; 27.2 mph) on the surface and 8 knots (15 km/h; 9.2 mph) underwater.<sup id="cite_ref-c5_2-0" class="reference"><a href="#cite_note-c5-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> On the surface, the <i>B1</i>s had a range of 14,000 <a href="/wiki/Nautical_mile" title="Nautical mile">nautical miles</a> (26,000 km; 16,000 mi) at 16 knots (30 km/h; 18 mph); submerged, they had a range of 96 nmi (178 km; 110 mi) at 3 knots (5.6 km/h; 3.5 mph).<sup id="cite_ref-cd3_3-0" class="reference"><a href="#cite_note-cd3-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>The boats were armed with six internal bow 53.3 cm (21.0 in) <a href="/wiki/Torpedo_tube" title="Torpedo tube">torpedo tubes</a> and carried a total of 17 <a href="/wiki/Torpedo" title="Torpedo">torpedoes</a>. They were also armed with a single <a href="/wiki/14_cm/40_11th_Year_Type_naval_gun" title="14 cm/40 11th Year Type naval gun">140 mm (5.5 in)/40</a> <a href="/wiki/Deck_gun" title="Deck gun">deck gun</a> and two single mounts for <a href="/wiki/Type_96_25_mm_AT/AA_Gun" class="mw-redirect" title="Type 96 25 mm AT/AA Gun">25 mm (1 in) Type 96</a> <a href="/wiki/Anti-aircraft_gun" class="mw-redirect" title="Anti-aircraft gun">anti-aircraft guns</a>.<sup id="cite_ref-cd3_3-1" class="reference"><a href="#cite_note-cd3-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> In the Type Bs, the aircraft <a href="/wiki/Hangar" title="Hangar">hangar</a> was faired into the base of the <a href="/wiki/Conning_tower" title="Conning tower">conning tower</a>. A single <a href="/wiki/Aircraft_catapult" title="Aircraft catapult">catapult</a> was positioned on the forward deck. Late in the war, some of the submarines had their aircraft hangar removed, to replace it with an additional 14 cm gun. In 1944, <i>I-36</i> and <i>I-37</i> had their aircraft hangar and catapult removed so that they could carry four <a href="/wiki/Kaiten" title="Kaiten">Kaiten</a> manned torpedoes, with <i>I-36</i> later being further modified to carry six.<sup id="cite_ref-cd3_3-2" class="reference"><a href="#cite_note-cd3-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Service">Service</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Type_B1_submarine&action=edit&section=2" title="Edit section: Service"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The series was rather successful, especially at the beginning of the war. </p> <ul><li><a href="/wiki/Japanese_submarine_I-17" title="Japanese submarine I-17"><i>I-17</i></a> shelled an oil field up the beach from <a href="/wiki/Santa_Barbara,_California" title="Santa Barbara, California">Santa Barbara</a> and damaged a pump house in Elwood in February 1942. She was sunk by the New Zealand trawler <a href="/wiki/HMNZS_Tui_(T234)" title="HMNZS Tui (T234)"><i>Tui</i></a> and two US Navy aircraft off <a href="/wiki/Noumea" class="mw-redirect" title="Noumea">Noumea</a> on 19 August 1943.</li> <li>On 15 September 1942 <a href="/wiki/Japanese_submarine_I-19" title="Japanese submarine I-19"><i>I-19</i></a> fired six torpedoes at the aircraft carrier <a href="/wiki/USS_Wasp_(CV-7)" title="USS Wasp (CV-7)">USS <i>Wasp</i></a>, three of which hit the carrier and sank her. The three remaining torpedoes went on for several thousand meters and hit another carrier force,<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (August 2017)">citation needed</span></a></i>]</sup> damaging the battleship <a href="/wiki/USS_North_Carolina_(BB-55)" title="USS North Carolina (BB-55)">USS <i>North Carolina</i></a> and sinking the destroyer <a href="/wiki/USS_O%27Brien_(DD-415)" title="USS O'Brien (DD-415)">USS <i>O'Brien</i></a>. <i>I-19</i> was sunk with depth charges by <a href="/wiki/USS_Radford_(DD-446)" title="USS Radford (DD-446)">USS <i>Radford</i></a><sup id="cite_ref-USNChron_4-0" class="reference"><a href="#cite_note-USNChron-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> on 25 November 1943.</li> <li><a href="/wiki/Japanese_submarine_I-25" title="Japanese submarine I-25"><i>I-25</i></a> conducted one of the few attacks on the continental United States in September 1942. A year later she was sunk by destroyer <a href="/wiki/USS_Patterson_(DD-392)" title="USS Patterson (DD-392)">USS <i>Patterson</i></a> off the <a href="/wiki/New_Hebrides" title="New Hebrides">New Hebrides</a> on 3 September 1943.</li> <li><a href="/wiki/Japanese_submarine_I-26" title="Japanese submarine I-26"><i>I-26</i></a> sank the <a href="/wiki/US_Army" class="mw-redirect" title="US Army">US Army</a> chartered merchant ship <a href="/wiki/SS_Cynthia_Olson" title="SS Cynthia Olson">SS <i>Cynthia Olson</i></a> about 1,000 miles<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Please_clarify" title="Wikipedia:Please clarify"><span title="The text near this tag may need clarification or removal of jargon. (August 2017)">clarification needed</span></a></i>]</sup> northeast of Pearl Harbor on 7 December 1941, causing 35 fatalities. She also crippled the aircraft carrier <a href="/wiki/USS_Saratoga_(CV-3)" title="USS Saratoga (CV-3)">USS <i>Saratoga</i></a> with one torpedo hit (out of six fired) on 31 August 1942. On 13 November 1942, she sank the cruiser <a href="/wiki/USS_Juneau_(CL-52)" title="USS Juneau (CL-52)">USS <i>Juneau</i></a>. She was sunk off <a href="/wiki/Leyte_(island)" class="mw-redirect" title="Leyte (island)">Leyte</a> in October 1944.</li> <li><a href="/wiki/Japanese_submarine_I-27" title="Japanese submarine I-27"><i>I-27</i></a> Between June 1942 and February 1944, she sank several ships including: <a href="/wiki/SS_Iron_Crown" title="SS Iron Crown">SS Iron Crown</a> near Gabo Island, <a href="/w/index.php?title=SS_Fort_Mumford&action=edit&redlink=1" class="new" title="SS Fort Mumford (page does not exist)">SS <i>Fort Mumford</i></a> and <a href="/wiki/SS_Montanan" title="SS Montanan">SS <i>Montanan</i></a> in the Indian Ocean, <a href="/wiki/Liberty_ship" title="Liberty ship">Liberty ship</a> SS <i>Sambridge</i>, and the <a href="/wiki/SS_Khedive_Ismail" title="SS Khedive Ismail">SS <i>Khedive Ismail</i></a> near the Maldives on February 12, 1944. Following her last success, she was sunk by escorting British warships.</li> <li><a href="/wiki/Japanese_submarine_I-29" title="Japanese submarine I-29"><i>I-29</i></a> was used to conduct personnel, gold, and technology exchanges with <a href="/wiki/Germany" title="Germany">Germany</a> during WW2. Her most famous <a href="/wiki/Yanagi_missions" title="Yanagi missions"><i>Yanagi</i></a> mission was the successful transfer on 26 April 1943 off the coast of <a href="/wiki/Mozambique" title="Mozambique">Mozambique</a>, <a href="/wiki/Africa" title="Africa">Africa</a>, and safe return to Japan from <a href="/wiki/German_submarine_U-180" title="German submarine U-180">German <i>U-180</i></a> with Netaji <a href="/wiki/Subhas_Chandra_Bose" title="Subhas Chandra Bose">Subhas Chandra Bose</a>, leader of the Indian Independence Movement and <a href="/wiki/Indian_National_Army" title="Indian National Army">Indian National Army</a> who was going from Berlin to Tokyo, and his Adjutant, <a href="/wiki/Abid_Hasan_(diplomat)" class="mw-redirect" title="Abid Hasan (diplomat)">Abid Hasan</a>, while two Japanese naval officers sent to study U-boat construction and 2 tons of gold were transferred to <i>U-180</i> as Japanese payment for German wartime technology. Both submarines returned safely to their bases.</li> <li><a href="/wiki/Japanese_submarine_I-39" title="Japanese submarine I-39"><i>I-39</i></a> on 12 September 1943, torpedoed the 205 ft fleet tug <a href="/wiki/USS_Navajo_(AT-64)" title="USS Navajo (AT-64)">USS <i>Navajo</i></a> en route from <a href="/wiki/Pago_Pago" class="mw-redirect" title="Pago Pago">Pago Pago</a> towing a gas barge.</li></ul> <div class="mw-heading mw-heading3"><h3 id="Losses">Losses</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Type_B1_submarine&action=edit&section=3" title="Edit section: Losses"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure typeof="mw:File/Thumb"><a href="/wiki/File:I-15.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/ab/I-15.jpg/420px-I-15.jpg" decoding="async" width="420" height="149" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/ab/I-15.jpg/630px-I-15.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/ab/I-15.jpg/840px-I-15.jpg 2x" data-file-width="1440" data-file-height="510" /></a><figcaption>Japanese B1-type <i>I-15</i> submarine on initial sea trials 15 September 1940 with integral aircraft hangar visible</figcaption></figure> <ul><li><a href="/wiki/Japanese_submarine_I-15" title="Japanese submarine I-15"><i>I-15</i></a> was sunk off San Cristobol on 2 November 1942 by destroyer <a href="/wiki/USS_McCalla_(DD-488)" title="USS McCalla (DD-488)">USS <i>McCalla</i></a>.</li> <li><a href="/wiki/Japanese_submarine_I-19" title="Japanese submarine I-19"><i>I-19</i></a> was sunk by <a href="/wiki/USS_Radford_(DD-446)" title="USS Radford (DD-446)">USS <i>Radford</i></a> 25 November 1943</li> <li><a href="/wiki/Japanese_submarine_I-21" title="Japanese submarine I-21"><i>I-21</i></a> made her final report on 27 November 1943, off the <a href="/wiki/Gilbert_Islands" title="Gilbert Islands">Gilbert Islands</a>, following which she was never heard from again.<sup id="cite_ref-boyd_5-0" class="reference"><a href="#cite_note-boyd-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> At least one source attributes her sinking to aircraft from escort carrier <a href="/wiki/USS_Chenango_(CVE-28)" title="USS Chenango (CVE-28)">USS <i>Chenango</i></a> on 29 November 1943.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Japanese_submarine_I-23" title="Japanese submarine I-23"><i>I-23</i></a> was lost in February 1942, following a final report made from off <a href="/wiki/Oahu" title="Oahu">Oahu</a>.</li> <li><a href="/wiki/Japanese_submarine_I-25" title="Japanese submarine I-25"><i>I-25</i></a> was sunk by <a href="/wiki/USS_Patterson_(DD-392)" title="USS Patterson (DD-392)">USS <i>Patterson</i></a> on 25 August 1943.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (February 2023)">citation needed</span></a></i>]</sup></li> <li><a href="/wiki/Japanese_submarine_I-27" title="Japanese submarine I-27"><i>I-27</i></a> was sunk by the British destroyers <a href="/wiki/HMS_Paladin_(G69)" title="HMS Paladin (G69)">HMS <i>Paladin</i></a> and <a href="/wiki/HMS_Petard_(G56)" title="HMS Petard (G56)">HMS <i>Petard</i></a> off Addu Atoll on 12 February 1944 after it had sunk the <a href="/wiki/Troopship" title="Troopship">troopship</a> <a href="/wiki/SS_Khedive_Ismail" title="SS Khedive Ismail">SS <i>Khedive Ismail</i></a> with the loss of about 1,300 lives. She was first rammed by <i>Paladin</i> then torpedoed by <i>Petard</i>.<sup id="cite_ref-boyd_5-1" class="reference"><a href="#cite_note-boyd-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Japanese_submarine_I-28" title="Japanese submarine I-28"><i>I-28</i></a> was sunk by submarine <a href="/wiki/USS_Tautog_(SS-199)" title="USS Tautog (SS-199)">USS <i>Tautog</i></a> south of <a href="/wiki/Chuuk_Lagoon" title="Chuuk Lagoon">Truk</a> on 17 May 1942.</li> <li><a href="/wiki/Japanese_submarine_I-29" title="Japanese submarine I-29"><i>I-29</i></a> was sunk by <a href="/wiki/USS_Sawfish" title="USS Sawfish">USS <i>Sawfish</i></a> in <a href="/wiki/Balintang_Channel" title="Balintang Channel">Balintang Channel</a> on 26 July 1944.</li> <li><a href="/wiki/Japanese_submarine_I-30" title="Japanese submarine I-30"><i>I-30</i></a> was the first Japanese submarine to reach Europe under the <a href="/wiki/Submarines_of_the_Imperial_Japanese_Navy#Yanagi_missions" title="Submarines of the Imperial Japanese Navy"><i>Yanagi</i></a> missions, but she was sunk by a mine off <a href="/wiki/Singapore" title="Singapore">Singapore</a> on 13 October 1942.</li> <li><a href="/wiki/Japanese_submarine_I-31" title="Japanese submarine I-31"><i>I-31</i></a> was sunk by destroyers <a href="/wiki/USS_Edwards_(DD-619)" title="USS Edwards (DD-619)">USS <i>Edwards</i></a> and <a href="/wiki/USS_Frazier" title="USS Frazier">USS <i>Frazier</i></a> off <a href="/wiki/Attu_Island" title="Attu Island">Attu</a> on 12 May 1943.</li> <li><a href="/wiki/Japanese_submarine_I-32" title="Japanese submarine I-32"><i>I-32</i></a> was sunk by the destroyer escort <a href="/wiki/USS_Manlove" title="USS Manlove">USS <i>Manlove</i></a> and the subchaser <a href="/w/index.php?title=USS_Canastota_(PC-1135)&action=edit&redlink=1" class="new" title="USS Canastota (PC-1135) (page does not exist)">USS <i>Canastota</i></a> south of <a href="/wiki/Wotje" class="mw-redirect" title="Wotje">Wotje</a> on 24 March 1944.</li> <li><a href="/wiki/Japanese_submarine_I-33" title="Japanese submarine I-33"><i>I-33</i></a> was lost during sea trials in the <a href="/wiki/Seto_Inland_Sea" title="Seto Inland Sea">Inland Sea</a> on 13 June 1944.</li> <li><a href="/wiki/Japanese_submarine_I-34" title="Japanese submarine I-34"><i>I-34</i></a> was sunk by submarine <a href="/wiki/HMS_Taurus_(P339)" title="HMS Taurus (P339)">HMS <i>Taurus</i></a> off <a href="/wiki/Penang" title="Penang">Penang</a> on 13 November 1943.</li> <li><a href="/wiki/Japanese_submarine_I-35" title="Japanese submarine I-35"><i>I-35</i></a> was sunk by destroyers <a href="/wiki/USS_Meade_(DD-602)" title="USS Meade (DD-602)">USS <i>Meade</i></a> and <a href="/wiki/USS_Frazier" title="USS Frazier">USS <i>Frazier</i></a> off <a href="/wiki/Tarawa_Atoll" class="mw-redirect" title="Tarawa Atoll">Tarawa</a> on 23 November 1943.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Japanese_submarine_I-37" title="Japanese submarine I-37"><i>I-37</i></a> was sunk by destroyer escorts <a href="/wiki/USS_Conklin" title="USS Conklin">USS <i>Conklin</i></a> and <a href="/wiki/USS_McCoy_Reynolds" title="USS McCoy Reynolds">USS <i>McCoy Reynolds</i></a> off <a href="/wiki/Leyte_(island)" class="mw-redirect" title="Leyte (island)">Leyte</a> on 19 November 1944.</li> <li><a href="/wiki/Japanese_submarine_I-38" title="Japanese submarine I-38"><i>I-38</i></a> was sunk by destroyer <a href="/wiki/USS_Nicholas_(DD-449)" title="USS Nicholas (DD-449)">USS <i>Nicholas</i></a> near <a href="/wiki/Yap" title="Yap">Yap</a> on 12 November 1944.</li> <li><a href="/wiki/Japanese_submarine_I-39" title="Japanese submarine I-39"><i>I-39</i></a> was sunk by destroyer <a href="/wiki/USS_Boyd" title="USS Boyd">USS <i>Boyd</i></a> in the <a href="/wiki/Gilberts" class="mw-redirect" title="Gilberts">Gilberts</a> on 26 November 1943.</li></ul> <p>Altogether the Type B submarines (B1, <a href="/wiki/Type_B_submarine#Type-B_Mod.1_(I-40_class)" title="Type B submarine">B2</a>, and <a href="/wiki/Type_B_submarine#Type-B_Mod.2_(I-54_class)" title="Type B submarine">B3</a> combined) are credited with sinking 56 merchant ships for a total of 372,730 tonnes, about 35% of all merchant shipping sunk by Japanese submarines during the war. </p><p>All B1 type submarines were lost during the conflict, except for <i><a href="/wiki/Japanese_submarine_I-36" title="Japanese submarine I-36"><i>I-36</i></a></i>, which was scuttled off <a href="/wiki/Got%C5%8D_Islands" title="Gotō Islands">Gotō Islands</a> by the <a href="/wiki/US_Navy" class="mw-redirect" title="US Navy">US Navy</a> on 1 April 1946. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Type_B1_submarine&action=edit&section=4" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Type_B_submarine" title="Type B submarine">Type B submarine</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Notes">Notes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Type_B1_submarine&action=edit&section=5" title="Edit section: Notes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-b4-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-b4_1-0">^</a></b></span> <span class="reference-text">Bagnasco, p. 189</span> </li> <li id="cite_note-c5-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-c5_2-0">^</a></b></span> <span class="reference-text">Chesneau, p. 200</span> </li> <li id="cite_note-cd3-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-cd3_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-cd3_3-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-cd3_3-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text">Carpenter & Dorr, p. 102</span> </li> <li id="cite_note-USNChron-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-USNChron_4-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFCressman2000" class="citation book cs1">Cressman, Robert (2000). <a rel="nofollow" class="external text" href="http://www.ibiblio.org/hyperwar/USN/USN-Chron/USN-Chron-1943.html">"Chapter V: 1943"</a>. <span class="id-lock-registration" title="Free registration required"><a rel="nofollow" class="external text" href="https://archive.org/details/TheOfficialChronologyOfTheUSNavyInWorldWarII"><i>The official chronology of the U.S. Navy in World War II</i></a></span>. Annapolis, Maryland: Naval Institute Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-1-55750-149-3" title="Special:BookSources/978-1-55750-149-3"><bdi>978-1-55750-149-3</bdi></a>. <a href="/wiki/OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/41977179">41977179</a><span class="reference-accessdate">. Retrieved <span class="nowrap">2012-09-14</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Chapter+V%3A+1943&rft.btitle=The+official+chronology+of+the+U.S.+Navy+in+World+War+II&rft.place=Annapolis%2C+Maryland&rft.pub=Naval+Institute+Press&rft.date=2000&rft_id=info%3Aoclcnum%2F41977179&rft.isbn=978-1-55750-149-3&rft.aulast=Cressman&rft.aufirst=Robert&rft_id=http%3A%2F%2Fwww.ibiblio.org%2Fhyperwar%2FUSN%2FUSN-Chron%2FUSN-Chron-1943.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AType+B1+submarine" class="Z3988"></span></span> </li> <li id="cite_note-boyd-5"><span class="mw-cite-backlink">^ <a href="#cite_ref-boyd_5-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-boyd_5-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBoydAkihiko_Yoshida2002" class="citation book cs1">Boyd, Carl; Akihiko Yoshida (2002). <i>The Japanese Submarine Force and World War II</i>. Naval Institute Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-55750-015-0" title="Special:BookSources/1-55750-015-0"><bdi>1-55750-015-0</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Japanese+Submarine+Force+and+World+War+II&rft.pub=Naval+Institute+Press&rft.date=2002&rft.isbn=1-55750-015-0&rft.aulast=Boyd&rft.aufirst=Carl&rft.au=Akihiko+Yoshida&rfr_id=info%3Asid%2Fen.wikipedia.org%3AType+B1+submarine" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFRohwerHümmelchen2005" class="citation book cs1">Rohwer, Jürgen; Hümmelchen, Gerhard (2005). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=TpDlFI453RcC"><i>Chronology of the War at Sea, 1939–1945: the Naval History of World War Two</i></a> (3. rev. ed.). Annapolis, Md.: Naval Institute Press. p. 289. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9781591141198" title="Special:BookSources/9781591141198"><bdi>9781591141198</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Chronology+of+the+War+at+Sea%2C+1939%E2%80%931945%3A+the+Naval+History+of+World+War+Two&rft.place=Annapolis%2C+Md.&rft.pages=289&rft.edition=3.+rev.&rft.pub=Naval+Institute+Press&rft.date=2005&rft.isbn=9781591141198&rft.aulast=Rohwer&rft.aufirst=J%C3%BCrgen&rft.au=H%C3%BCmmelchen%2C+Gerhard&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DTpDlFI453RcC&rfr_id=info%3Asid%2Fen.wikipedia.org%3AType+B1+submarine" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.defence.gov.au/sydneyii/EXP/EXP.001.0065.pdf">report of the sinking of I-35</a>, <a href="/wiki/Department_of_Defence_(Australia)" class="mw-redirect" title="Department of Defence (Australia)">Department of Defence (Australia)</a>, undated <a href="/wiki/World_War_II" title="World War II">World War II</a>, accessed 24 April 2010</span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Type_B1_submarine&action=edit&section=6" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBagnasco1977" class="citation book cs1">Bagnasco, Erminio (1977). <i>Submarines of World War Two</i>. Annapolis, Maryland: Naval Institute Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-87021-962-6" title="Special:BookSources/0-87021-962-6"><bdi>0-87021-962-6</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Submarines+of+World+War+Two&rft.place=Annapolis%2C+Maryland&rft.pub=Naval+Institute+Press&rft.date=1977&rft.isbn=0-87021-962-6&rft.aulast=Bagnasco&rft.aufirst=Erminio&rfr_id=info%3Asid%2Fen.wikipedia.org%3AType+B1+submarine" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBoydYoshida2002" class="citation book cs1">Boyd, Carl & Yoshida, Akikiko (2002). <i>The Japanese Submarine Force and World War II</i>. Annapolis, Maryland: Naval Institute Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-55750-015-0" title="Special:BookSources/1-55750-015-0"><bdi>1-55750-015-0</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Japanese+Submarine+Force+and+World+War+II&rft.place=Annapolis%2C+Maryland&rft.pub=Naval+Institute+Press&rft.date=2002&rft.isbn=1-55750-015-0&rft.aulast=Boyd&rft.aufirst=Carl&rft.au=Yoshida%2C+Akikiko&rfr_id=info%3Asid%2Fen.wikipedia.org%3AType+B1+submarine" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCarpenterPolmar1986" class="citation book cs1">Carpenter, Dorr B. & Polmar, Norman (1986). <i>Submarines of the Imperial Japanese Navy 1904–1945</i>. London: Conway Maritime Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-85177-396-6" title="Special:BookSources/0-85177-396-6"><bdi>0-85177-396-6</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Submarines+of+the+Imperial+Japanese+Navy+1904%E2%80%931945&rft.place=London&rft.pub=Conway+Maritime+Press&rft.date=1986&rft.isbn=0-85177-396-6&rft.aulast=Carpenter&rft.aufirst=Dorr+B.&rft.au=Polmar%2C+Norman&rfr_id=info%3Asid%2Fen.wikipedia.org%3AType+B1+submarine" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFChesneau1980" class="citation book cs1">Chesneau, Roger, ed. (1980). <i>Conway's All the World's Fighting Ships 1922–1946</i>. Greenwich, UK: Conway Maritime Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-85177-146-7" title="Special:BookSources/0-85177-146-7"><bdi>0-85177-146-7</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Conway%27s+All+the+World%27s+Fighting+Ships+1922%E2%80%931946&rft.place=Greenwich%2C+UK&rft.pub=Conway+Maritime+Press&rft.date=1980&rft.isbn=0-85177-146-7&rfr_id=info%3Asid%2Fen.wikipedia.org%3AType+B1+submarine" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHashimoto1954" class="citation book cs1">Hashimoto, Mochitsura (1954). <i>Sunk: The Story of the Japanese Submarine Fleet 1942 – 1945</i>. Colegrave, E.H.M. (translator). London: Cassell and Company. ASIN B000QSM3L0.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Sunk%3A+The+Story+of+the+Japanese+Submarine+Fleet+1942+%E2%80%93+1945&rft.place=London&rft.pub=Cassell+and+Company&rft.date=1954&rft.aulast=Hashimoto&rft.aufirst=Mochitsura&rfr_id=info%3Asid%2Fen.wikipedia.org%3AType+B1+submarine" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMilanovich2021" class="citation book cs1">Milanovich, Kathrin (2021). "The IJN Submarines of the I 15 Class". In Jordan, John (ed.). <i>Warship 2021</i>. Oxford, UK: Osprey Publishing. pp. 29–43. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-1-4728-4779-9" title="Special:BookSources/978-1-4728-4779-9"><bdi>978-1-4728-4779-9</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=The+IJN+Submarines+of+the+I+15+Class&rft.btitle=Warship+2021&rft.place=Oxford%2C+UK&rft.pages=29-43&rft.pub=Osprey+Publishing&rft.date=2021&rft.isbn=978-1-4728-4779-9&rft.aulast=Milanovich&rft.aufirst=Kathrin&rfr_id=info%3Asid%2Fen.wikipedia.org%3AType+B1+submarine" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFStille2007" class="citation book cs1">Stille, Mark (2007). <i>Imperial Japanese Navy Submarines 1941-45</i>. New Vanguard. Vol. 135. Botley, Oxford, UK: Osprey Publishing. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-1-84603-090-1" title="Special:BookSources/978-1-84603-090-1"><bdi>978-1-84603-090-1</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Imperial+Japanese+Navy+Submarines+1941-45&rft.place=Botley%2C+Oxford%2C+UK&rft.series=New+Vanguard&rft.pub=Osprey+Publishing&rft.date=2007&rft.isbn=978-1-84603-090-1&rft.aulast=Stille&rft.aufirst=Mark&rfr_id=info%3Asid%2Fen.wikipedia.org%3AType+B1+submarine" class="Z3988"></span></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output 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href="/wiki/Template:Type_B_submarine" title="Template:Type B submarine"><abbr title="View this template" style="color:inherit">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Type_B_submarine" title="Template talk:Type B submarine"><abbr title="Discuss this template" style="color:inherit">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Type_B_submarine" title="Special:EditPage/Template:Type B submarine"><abbr title="Edit this template" style="color:inherit">e</abbr></a></li></ul></div><div id="Junsen_Type_B_(Otsu)_submarine" style="font-size:114%;margin:0 4em"><a href="/wiki/Type_B_submarine" title="Type B submarine">Junsen Type B <i>(Otsu)</i> submarine</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a class="mw-selflink selflink"><i>I-15</i>-class (Type B/<i>B1</i>)</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Japanese_submarine_I-15" title="Japanese submarine I-15"><i>I-15</i></a></li> <li><a href="/wiki/Japanese_submarine_I-17" title="Japanese submarine I-17"><i>I-17</i></a></li> <li><a href="/wiki/Japanese_submarine_I-19" title="Japanese submarine I-19"><i>I-19</i></a></li> <li><a href="/wiki/Japanese_submarine_I-21" title="Japanese submarine I-21"><i>I-21</i></a></li> <li><a href="/wiki/Japanese_submarine_I-23" title="Japanese submarine I-23"><i>I-23</i></a></li> <li><a href="/wiki/Japanese_submarine_I-25" title="Japanese submarine I-25"><i>I-25</i></a></li> <li><a href="/wiki/Japanese_submarine_I-26" title="Japanese submarine I-26"><i>I-26</i></a></li> <li><a href="/wiki/Japanese_submarine_I-27" title="Japanese submarine I-27"><i>I-27</i></a></li> <li><a href="/wiki/Japanese_submarine_I-28" title="Japanese submarine I-28"><i>I-28</i></a></li> <li><a href="/wiki/Japanese_submarine_I-29" title="Japanese submarine I-29"><i>I-29</i></a></li> <li><a href="/wiki/Japanese_submarine_I-30" title="Japanese submarine I-30"><i>I-30</i></a></li> <li><a href="/wiki/Japanese_submarine_I-31" title="Japanese submarine I-31"><i>I-31</i></a></li> <li><a href="/wiki/Japanese_submarine_I-32" title="Japanese submarine I-32"><i>I-32</i></a></li> <li><a href="/wiki/Japanese_submarine_I-33" title="Japanese submarine I-33"><i>I-33</i></a></li> <li><a href="/wiki/Japanese_submarine_I-34" title="Japanese submarine I-34"><i>I-34</i></a></li> <li><a href="/wiki/Japanese_submarine_I-35" title="Japanese submarine I-35"><i>I-35</i></a></li> <li><a href="/wiki/Japanese_submarine_I-36" title="Japanese submarine I-36"><i>I-36</i></a></li> <li><a href="/wiki/Japanese_submarine_I-37" title="Japanese submarine I-37"><i>I-37</i></a></li> <li><a href="/wiki/Japanese_submarine_I-38" title="Japanese submarine I-38"><i>I-38</i></a></li> <li><a href="/wiki/Japanese_submarine_I-39" title="Japanese submarine I-39"><i>I-39</i></a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Type_B_submarine#Type-B_Mod.1_(I-40_class)" title="Type B submarine"><i>I-40</i>-class (Type B Kai 1/<i>B2</i>)</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Japanese_submarine_I-40" title="Japanese submarine I-40"><i>I-40</i></a></li> <li><a href="/wiki/Japanese_submarine_I-41" title="Japanese submarine I-41"><i>I-41</i></a></li> <li><a href="/wiki/Japanese_submarine_I-42" title="Japanese submarine I-42"><i>I-42</i></a></li> <li><a href="/wiki/Japanese_submarine_I-43" title="Japanese submarine I-43"><i>I-43</i></a></li> <li><a href="/wiki/Japanese_submarine_I-44" title="Japanese submarine I-44"><i>I-44</i></a></li> <li><a href="/wiki/Japanese_submarine_I-45" title="Japanese submarine I-45"><i>I-45</i></a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%;background-color:#DCDCDC;color:inherit;"><a href="/wiki/Type_B_submarine#Type-B_Mod.2_(I-54_class)" title="Type B submarine"><i>I-54</i>-class (Type B Kai 2/<i>B3</i>)</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Japanese_submarine_I-54_(1943)" title="Japanese submarine I-54 (1943)"><i>I-54</i></a></li> <li><i><a href="/wiki/Japanese_submarine_I-56_(1943)" title="Japanese submarine I-56 (1943)">I-56</a></i></li> <li><a href="/wiki/Japanese_submarine_I-58_(1943)" title="Japanese submarine I-58 (1943)"><i>I-58</i></a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2" style="background-color:#DCDCDC;color:inherit;"><div><a href="/wiki/Imperial_Japanese_Navy_submarines" class="mw-redirect" title="Imperial Japanese Navy submarines">Imperial Japanese Navy submarines</a></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Imperial_Japanese_Navy" style=";wide;padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="background-color:#C3D6EF;color:inherit;"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Imperial_Japanese_Navy" title="Template:Imperial Japanese Navy"><abbr title="View this template" style="color:inherit">v</abbr></a></li><li 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href="/wiki/List_of_Imperial_Japanese_Navy_admirals" title="List of Imperial Japanese Navy admirals">Admirals</a></li> <li><a href="/wiki/Ranks_of_the_Imperial_Japanese_Navy" title="Ranks of the Imperial Japanese Navy">Ranks</a></li> <li><a href="/wiki/List_of_Imperial_Japanese_Navy_fleets" title="List of Imperial Japanese Navy fleets">Fleets</a></li> <li><a href="/wiki/Template:Imperial_Japanese_Navy_warship_units" title="Template:Imperial Japanese Navy warship units">Warship Units</a></li> <li><a href="/wiki/Template:Imperial_Japanese_Navy_air_units" title="Template:Imperial Japanese Navy air units">Air Units</a></li> <li><a href="/wiki/List_of_ships_of_the_Imperial_Japanese_Navy" title="List of ships of the Imperial Japanese Navy">Ships</a></li> <li><a href="/wiki/List_of_aircraft_of_the_Imperial_Japanese_Navy" title="List of aircraft of the Imperial Japanese Navy">Aircraft</a></li> <li><a href="/wiki/List_of_weapons_of_the_Japanese_Navy" title="List of weapons of the Japanese Navy">Weapons</a></li> <li><a href="/wiki/List_of_battles_of_the_Imperial_Japanese_Navy" title="List of battles of the Imperial Japanese Navy">Battles</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Type_B1_submarine&oldid=1253997173">https://en.wikipedia.org/w/index.php?title=Type_B1_submarine&oldid=1253997173</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Submarine_aircraft_carriers" title="Category:Submarine aircraft carriers">Submarine aircraft carriers</a></li><li><a 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