Atami-class gunboat
{{Use dmy dates|date=May 2023}}
| {{Infobox ship begin}}
{{Infobox ship image |Ship image=Japanese gunboat Atami 1929.jpg |Ship caption=Atami in 1929 in the Setouchi Sea }} {{Infobox ship class overview |Name=Atami class |Builders=Fujinagata, Osaka |Operators=* {{navy|Empire of Japan}}
|Class before= {{sclass|Seta|gunboat|4}} |Class after={{ship|Japanese gunboat|Kotaka | 2}}
|Subclasses= |Built range=1928–1930 |In commission range=1929–1949 |Total ships planned=2 |Total ships completed=2 |Total ships laid up= |Total ships lost= |Total ships retired=2 |Total ships preserved= }} {{Infobox ship characteristics |Hide header= |Header caption= |Ship type=Riverine gunboat |Ship displacement= * {{cvt|206|t|LT|lk=on}} light
|Ship length= * {{cvt|148|ft|7|in|m|order=flip}} pp
|Ship beam= {{cvt|22|ft|8|in|m|order=flip}} |Ship draught= {{cvt|3|ft|8|in|m|order=flip}} |Ship power=Triple expansion engine, 2 × Kampon boilers |Ship propulsion=2 × shafts, {{cvt|1300|ihp|order=flip|lk=on}} |Ship speed= {{convert|16+3/4|kn|lk=in}} |Ship range= |Ship endurance= |Ship complement= 77 |Ship sensors= |Ship EW= |Ship armament=* 1 × 7.9 cm/28 cal. gun
|Ship armour= |Ship notes= }} |
The {{nihongo|Atami-class gunboats|熱海型砲艦|Atami-gata hōkan}} were a class of riverine gunboats of the Imperial Japanese Navy. The class consisted of two vessels, {{ship|Japanese gunboat|Atami||2}} (熱海) and {{ship|Japanese gunboat|Futami||2}} (二見). Designed for service on Chinese rivers, they were an improved version of the {{sclass|Seta|gunboat|4}}. They were constructed by Fujinagata at Osaka, Japan in 1928 to 1930. The gunboats served in the Second Sino-Japanese War and World War II until their surrender in 1945. They were taken over by the Republic of China and renamed Yung Ping and Yung An respectively. Both ships were captured in 1949 by Communist China during the Chinese Civil War.
Design and description
The Atami class were improved versions of the preceding {{sclass|Seta|gunboat|4}}. Designed for use on Chinese rivers, the gunboats measured {{cvt|151|ft|11|in|m|order=flip}} long overall and {{cvt|148|ft|7|in|m|order=flip}} between perpendiculars and at the waterline with a beam of {{cvt|22|ft|8|in|m|order=flip}} and a draught of {{cvt|3|ft|8|in|m|order=flip}}. The vessels had a light displacement {{cvt|206|t|LT|lk=on}} and a standard displacement of {{cvt|225|t|LT}}.{{sfn|Jentschura|Jung|Mickel|1986|p=121}}{{efn|Sturton has the beam at {{cvt|20|ft|8|in|m|order=flip}} and the draught at {{cvt|3|ft|0|in|order=flip}}.{{sfn|Sturton|1980|p=211}}}}
The gunboats were powered by a triple expansion engine fed steam by two Kampon boilers turning two shafts creating {{cvt|1300|ihp|order=flip|lk=on}}.{{sfn|Jentschura|Jung|Mickel|1986|p=121}}{{sfn|Sturton|1980|p=211}}{{efn|Jentschura, Jung and Mickel have the ships powered by a two-cylinder compound steam engine.{{sfn|Jentschura|Jung|Mickel|1986|p=121}}}} This gave the ships a maximum speed of {{convert|16+3/4|kn}}. They had capacity for {{cvt|28|t}} of coal and {{cvt|34|t}} of oil for fuel. The Atami class were initially armed with one {{cvt|3.1|in|mm|order=flip|0}}/28 cal. anti-aircraft gun, one Hotchkiss M1929 machine gun gun and five {{cvt|7.7|mm|in}} machine guns.{{sfn|Jentschura|Jung|Mickel|1986|p=121}}
Ships in class
| class="wikitable" style="font-size:95%;" | |
| colspan="7"| Atami class construction data{{sfn|Jentschura|Jung|Mickel|1986|p=121}}{{sfn|Sturton|1980|p=211}} | |
|---|---|
| Name
! Builder ! Launched ! Completed ! Fate | |
| {{ship|Japanese gunboat|Atami | 2}} (熱海)
| rowspan="2" align="center" | Tama Fujinagata, Osaka | 30 March 1929 | 30 June 1929 | Surrendered 1945. Transferred to Republic of China. Renamed Yung Ping. Captured by Communist China in 1949. |
| {{ship|Japanese gunboat|Futami | 2}} (二見)
| 20 November 1929 | 28 February 1930 | Surrendered 1945. Transferred to Republic of China. Renamed Yung An. Captured by Communist China in 1949. |
Construction and career
File:Japanese gunboat Futami in 1933.jpg
Two ships were authorised under the 1927 Programme. They were both constructed by Fujinagata at Osaka between 1928 and 1930.{{sfn|Sturton|1980|p=211}} Both gunboats sailed from Japan to China for service on the Yangtze River.{{sfn|Atami}}{{sfn|Futami}} On 14 June 1933, Futami ran aground on an uncharted rock. The gunboat was refloated in August and sent to Shanghai for repairs.{{sfn|Futami}} In 1937, at the onset of the Second Sino-Japanese War, both gunboats were assigned to the 11th Gunboat Division, with Atami acting as the force's flagship.{{sfn|Atami}}{{sfn|Futami}} The 11th Gunboat Division evacuated Japanese civilians from interior China to Shanghai in August. On 13 August, the division landed additional troops during the Second Battle of Shanghai and bombarded shore positions.{{sfn|Atami}}
In 1940, the two gunboats were rearmed with five {{cvt|25|mm}} guns replacing the machine guns and one 79 mm/40 cal. anti-aircraft gun.{{sfn|Jentschura|Jung|Mickel|1986|p=121}}{{sfn|Sturton|1980|p=211}} On 10 June 1943, Atami was damaged by Chinese aircraft on the Yangtze River near Tung Ting Lake. By 1945, the two gunboats had been stripped of their guns, which were used ashore. Both ships were surrendered by the Japanese in August 1945.{{sfn|Jentschura|Jung|Mickel|1986|p=121}} Transferred to the Republic of China, Atami was renamed Yung Ping and Futami renamed Yung An. Both ships were captured by Communist China in 1949 during the Chinese Civil War.{{sfn|Jentschura|Jung|Mickel|1986|p=121}}{{sfn|Sturton|1980|p=211}}
Notes
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Citations
{{reflist}}
References
- {{cite web |url=http://www.combinedfleet.com/Atami_t.htm |title=IJN River Gunboat Atami: Tabular Record of Movement |website=Combinedfleet.com |last1=Hackett |first1=Bob |last2=Kingsepp |first2=Sander |date=2010 |access-date=20 May 2023 |ref={{sfnref|Atami}}}}
- {{cite web |url=http://www.combinedfleet.com/Futami_t.htm |title=IJN River Gunboat Futami: Tabular Record of Movement |website=Combinedfleet.com |last1=Hackett |first1=Bob |last2=Kingsepp |first2=Sander |date=2010 |access-date=20 May 2023 |ref={{sfnref|Futami}}}}
- {{cite book |last1=Jentschura |first1=Hansgeorg |last2=Jung |first2=Dieter |last3=Mickel |first3=Peter |date=1986 |orig-year=1977 |title=Warships of the Imperial Japanese Navy 1869–1945 |translator-first1=Antony |translator-last1=Preston |translator-first2=J. D. |translator-last2=Brown |publisher=Naval Institute Press |location=Annapolis, Maryland |isbn=0-87021-893-X}}
- {{cite book |last=Sturton |first=Ian |chapter=Japan |editor-last=Chesneau |editor-first=Roger |year=1980 |title=Conway's All the World's Fighting Ships 1922–1946 |publisher=Conway Maritime Press |location=Greenwich, UK |isbn=0-85177-146-7 |pages=167–217}}
{{Atami class gunboat}}
{{WWII Japanese ships}}
{{DEFAULTSORT:Atami Class Gunboat}}