Japanese submarine Ha-207
| {{Infobox ship begin}}
{{Infobox ship image |Ship image= |Ship caption= }} {{Infobox ship career |Hide header= |Ship country=Japan |Ship flag= {{Shipboxflag|Empire of Japan|naval}} |Ship name=Submarine No. 4917 |Ship namesake= |Ship ordered= |Ship builder=Sasebo Naval Arsenal, Sasebo, Japan |Ship laid down=23 April 1945 |Ship renamed=Ha-207 on 1 May 1945 }} {{Infobox ship career |Hide header=yes |Ship launched=26 May 1945 |Ship completed=14 August 1945 |Ship acquired= |Ship commissioned=14 August 1945 |Ship decommissioned= |Ship in service= |Ship out of service= |Ship fate=*Surrendered 2 September 1945
|Ship reinstated= }} {{Infobox ship characteristics |Hide header= |Header caption= |Ship type=Submarine |Ship displacement=*{{convert|320|LT|t|0}} surfaced
|Ship length={{convert|53.00|m|ftin|abbr=on}} overall |Ship beam= {{convert|4.00|m|ftin|abbr=on}} |Ship draft={{convert|3.44|m|ftin|abbr=on}} |Ship propulsion=*1 × intermediate diesel
|Ship speed=*{{convert|11.8|kn|km/h|lk=in}} surfaced
|Ship range=*{{convert|3000|nmi|km|abbr=on|lk=in}} at {{convert|10|kn|km/h}} surfaced
|Ship test depth={{convert|100|m|ft|abbr=on|0}} |Ship complement=26 |Ship armament=*2 × {{convert|533|mm|in|0|abbr=on}} torpedo tubes
|Ship notes= }} |
Ha-207 was an Imperial Japanese Navy Ha-201-class submarine. Completed and commissioned in August 1945 on the day before hostilities ended in World War II, she surrendered in September 1945 and was scuttled in April 1946.
Design and description
At the end of 1944, the Imperial Japanese Navy decided it needed large numbers of high-speed coastal submarines to defend the Japanese Home Islands{{cite web|url=http://www.combinedfleet.com/type_sys.htm|title=Sen Taka Sho Type|last=Hackett|first=Bob |author2=Sander Kingsepp |year=2015|work=Sensuikan!|publisher=Combinedfleet.com|access-date=9 October 2020}} against an anticipated Allied invasion (named Operation Downfall by the Allies). To meet this requirement, the Ha-201-class submarines were designed as small, fast submarines incorporating many of the same advanced ideas implemented in the German Type XXI and Type XXIII submarines. They were capable of submerged speeds of almost {{convert|14|kn}}.
The Ha-201 class displaced {{Convert|320|LT|t|0|disp=flip|sp=us}} surfaced and {{Convert|440|LT|t|0|disp=flip|sp=us}} submerged. The submarines were {{convert|53|m|ftin|sp=us}} long, had a beam of {{convert|4.00|m|ftin|sp=us}} and a draft of {{convert|3.44|m|ftin|sp=us}}. For surface running, the submarines were powered by a single {{convert|400|bhp|lk=in|0|adj=on}} diesel engine that drove one propeller shaft. When submerged the propeller was driven by a {{convert|1,250|shp|0|adj=on}} electric motor. They could reach {{convert|11.8|kn|lk=in}} on the surface and {{convert|13.9|kn}} submerged. On the surface, the Ha-201-class submarines had a range of {{convert|3000|nmi|lk=in}} at {{convert|10|kn}}; submerged, they had a range of {{convert|105|nmi|abbr=on}} at {{convert|2|kn}}. Their armament consisted of two {{convert|533|mm|in|adj=on|sp=us|sigfig=2}} torpedo tubes with four torpedoes and a single mount for a 7.7-millimeter machine gun.
Construction and commissioning
Ha-207 was laid down on 23 April 1945 by the Sasebo Naval Arsenal at Sasebo, Japan, as Submarine No. 4917.{{cite web |url= http://www.combinedfleet.com/HA-207.htm |title=IJN Submarine HA-207: Tabular Record of Movement |first1=Bob |last1=Hackett |first2=Sander |last2=Kingsepp |work=combinedfleet.com |year=2019|access-date=9 October 2020}} She was renamed Ha-207 on 1 May 1945 and was attached provisionally to the Sasebo Naval District that day. She was launched simultaneously with her sister ship {{ship|Japanse submarine|Ha-208||2}} on 26 May 1945 and was completed and commissioned on 14 August 1945.
Service history
Disposal
The Japanese struck Ha-205 from the Navy list on 30 November 1945. She was scuttled along with the submarines {{ship|Japanese submarine|Ro-31||2}}, {{ship|Japanese submarine|Ha-210||2}}, {{ship|Japanese submarine|Ha-215||2}}, {{ship|Japanese submarine|Ha-216||2}}, {{ship|Japanese submarine|Ha-217||2}}, {{ship|Japanese submarine|Ha-219||2}}, and {{ship|Japanese submarine|Ha-228||2}} off Sasebo Bay on 5 April 1946.
Notes
{{Reflist|30em}}
References
- {{cite web|url=http://www.combinedfleet.com/HA-207.htm|title=IJN Submarine HA-207: Tabular Record of Movement|last1=Hackett|first1=Bob|last2=Kingsepp|first2=Sander|year=2019|work=SENSUIKAN! Stories and Battle Histories of the IJN's Submarines|publisher=Combinedfleet.com|access-date=9 October 2020}}
- {{cite web|url=http://www.combinedfleet.com/type_sts.htm|title=Sen Taka Sho Type|last=Hackett|first=Bob |author2=Sander Kingsepp |year=2015|work=Sensuikan!|publisher=Combinedfleet.com|access-date=9 October 2020}}
- {{cite web |url=http://rekigun.net/ |title=Rekishi Gunzō}}, History of Pacific War Vol.17 I-Gō Submarines, Gakken (Japan), January 1998, {{ISBN|4-05-601767-0}}
- Rekishi Gunzō, History of Pacific War Extra, "Perfect guide, The submarines of the Imperial Japanese Forces", Gakken (Japan), March 2005, {{ISBN|4-05-603890-2}}
- The Maru Special, Japanese Naval Vessels No.43 Japanese Submarines III, Ushio Shobō (Japan), September 1980, Book code 68343-43
- The Maru Special, Japanese Naval Vessels No.132 Japanese Submarines I "Revised edition", Ushio Shobō (Japan), February 1988, Book code 68344-36
- Ships of the World special issue Vol.37, History of Japanese Submarines, {{cite web |url=http://www.ships-net.co.jp/ |title=Kaijinsha}}, (Japan), August 1993
{{Ha-201-class submarines}}
{{1946 shipwrecks}}
{{DEFAULTSORT:Ha-207}}
Category:Ha-201-class submarines
Category:Ships built by Sasebo Naval Arsenal
Category:World War II submarines of Japan