“Submarine No.71”的意思、由来-开放百科全书

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Submarine No.71

释义

Design and description
Construction and career
See also
Notes
References

{{Infobox ship image

Ship image=Japanese No71 submarine in 1938.jpg

Ship caption=Submarine No.71 in 1938
}}{{Infobox ship class overview

Name=Number 71

Class before=

Class after=

Cost=

Built range=

In service range=

In commission range=

Total ships completed=1

Total ships scrapped=1
}}{{Infobox ship career

Hide header=

Ship country=Empire of Japan

Japan|naval}}

Ship name= Number 71

Ship ordered=

Ship builder=Kure Naval Arsenal

Ship laid down=December 1937

Ship launched= August 1938

Ship commissioned= 1938

Ship decommissioned=

Ship in service=

Ship out of service=

Ship struck=

Ship fate= scrapped, 1940
}}{{Infobox ship characteristics

Hide header=

Header caption=

Ship class=Experimental high-speed submarine

213|LT|t|0|disp=flip}} surfaced

{{Convert|240|LT|t|0|disp=flip}} submerged

42.8|m|ftin|abbr=on}}

3.3|m|ftin|abbr=on}}

3.1|m|ftin|abbr=on}}

1200|bhp|lk=in|abbr=on}} (diesel)

{{convert|1800|hp|abbr=on}} (electric motor)

Ship propulsion=*Diesel-electric

1 × diesel engine
1 × electric motor

13.25|kn|lk=in}} surfaced

{{convert|21.25|kn}} submerged

3830|nmi|abbr=on|lk=in}} at {{convert|12|kn}} surfaced

{{convert|33|nmi|abbr=on}} at {{convert|7|kn}} submerged

80|m|ft|abbr=on}}

Ship complement=11

450|mm|in|1|abbr=on}} torpedo tubes
}}

Submarine No.71 (Number 71) was an experimental high-speed submarine built for the Japanese Imperial Navy (IJN) during the 1930s.

Design and description

Submarine No.71 was designed to test high-speed performance underwater. Intended to reach {{convert|25|kn|lk=in}} underwater and {{convert|18|kn}} on the surface, she proved to be too underpowered to reach those goals. Nonetheless, the boat was the fastest submarine in the world underwater when built,^[1] beating the previous record set by the similar World War I-era British R-class. She displaced {{Convert|213|LT|t|0|disp=flip}} surfaced and {{Convert|240|LT|t|0|disp=flip}} submerged. Submarine No.71 was {{convert|42.8|m|ftin|sp=us}} long, had a beam of {{convert|3.3|m|ftin|sp=us}} and a draft of {{convert|3.1|m|ftin|sp=us}}.^[1]

For surface running, the boat was powered by a single {{convert|1200|bhp|lk=in|0|adj=on}} diesel engine that drove one propeller shaft. When submerged the propeller was driven by a {{convert|1800|hp|0|adj=on}} electric motor. She could reach {{convert|13.25|kn}} on the surface and {{convert|21.25|kn}} underwater. On the surface, Submarine No.71 had a range of {{convert|3830|nmi|lk=in}} at {{convert|12|kn}}; submerged, she had a range of {{convert|33|nmi|abbr=on}} at {{convert|7|kn}}. The boat was armed with three internal bow {{convert|45|cm|in|1|abbr=on|sp=us}} torpedo tubes; each was provided with one torpedo.^[1]

Construction and career

Submarine No.71 was laid down by the Kure Naval Arsenal in December 1937 and was launched that same month by being lowered into the water by a crane. She was completed in August 1938; trials showed that her small size and low-powered diesel made her hard to handle on the surface. While incapable of her intended speeds, she exceeded a submerged speed of 21 knots,^[1] almost five years before the famous German type XXI U-boats achieved speeds of around {{convert|18|kn}}.^[2] After extensive evaluations the boat was scrapped in 1940, and the lessons learned contributed to the development of the Sen Taka-class, and the Sen Taka Sho-class.^[1]

Notes

1. ^¹²³⁴Carpenter & Dorr, p. 100
2. ^Bagnasco, p. 76

References

{{cite book|last=Bagnasco |first=Erminio |title=Submarines of World War Two |year=1977 |publisher=Naval Institute Press |location=Annapolis, Maryland |isbn=0-87021-962-6}}
{{cite book|last1=Carpenter|first1=Dorr B.|last2=Polmar|first2=Norman|title=Submarines of the Imperial Japanese Navy 1904–1945|year=1986|publisher=Conway Maritime Press|location=London|isbn=0-85177-396-6|lastauthoramp=y}}
{{cite book|title=Conway's All the World's Fighting Ships 1922–1946|editor1-last=Chesneau|editor1-first=Roger|publisher=Conway Maritime Press|location=Greenwich, UK|year=1980|isbn=0-85177-146-7}}

3 : Submarine classes|Submarines of the Imperial Japanese Navy|Experimental submarines

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Design and description

Construction and career

See also

Notes

References