{{short description|Submarine rescue ship Chihaya}} {{Use dmy dates|date=November 2020}} {{other ships|Japanese ship Chihaya}} {{Infobox ship |section1={{Infobox ship/image | image = JS Chihaya (ASR-401).jpg | image_caption = JDS ''Chihaya'' }}
|section2={{Infobox ship/class overview | class_before = ''N/A'' | class_after = ''Fushimi'' class }}
|section3={{Infobox ship/career | hide_header = | country = Japan | flag = {{shipboxflag|Japan|naval}} | name = *''Chihaya'' *(ちはや) | namesake = Chihaya | ordered = 1959 | builder = Mitsubishi, Tokyo | laid_down = 15 March 1960 | launched = 4 October 1960 | acquired = | commissioned = 15 March 1961 | decommissioned = 28 February 1989 | in_service = | out_of_service = | struck = | reinstated = | honours = | homeport = Kure | identification =Pennant number: ASR-401, ASU-7011 | fate = | status = Decommissioned | notes = }}
|section4={{Infobox ship/characteristics | hide_header = | header_caption = | type = Submarine rescue ship | displacement = {{convert|1340|-|1850|LT|0|lk=on}} full load | length = {{convert|73.0|m|ftin|abbr=on}} | beam = {{convert|12.0|m|ftin|abbr=on}} | draft = {{convert|3.9|m|ftin|abbr=on}} | depth = {{convert|6.7|m|ftin|abbr=on}} | propulsion = *1 × Mitsubishi Yokohama MAN G6Z52 / 70 diesel engines ({{convert|2,700|hp|kW|abbr=on|disp=comma}}) *1 x shaft | speed = {{convert|15|kn}} | range = | endurance = | complement = 90 | sensors =*OPS-4D *AN/SQS-11A sonar *4-point mooring device | EW = | boats = 2 x {{convert|9|m|ft|abbr=on}} boats | armament = | armour = | aircraft = | aircraft_facilities = | notes =
}} }} '''JDS ''Chihaya'' (ASR-401)''' was a submarine rescue ship of Japan Maritime Self-Defense Force.
== Development and design == The Japan Maritime Self-Defense Force (JMSDF) did not own a submarine at the time of its inauguration, but in January 1955, it was announced that a submarine would be rented as an addition to the Japan-US Ship Lending Agreement signed in May 1954. The {{sclass|Gato|submarine|2}} {{USS|Mingo|SS-261|6}} was transferred to Japan and was recommissioned as JDS ''Kuroshio''. The JMSDF had been researching rescue ships from other countries, conscious of the need for rescue ships that can handle incidents from the time of acquisition of the submarine, but the first domestically produced ship {{ship|JDS|Oyashio}}. The construction of one ship was approved in the 1959 plan when (31SS) was under construction and ''Chihaya'' was ordered.<ref>{{Cite book|last=Mori|first=Tsunehide|title=12. Submarine Rescue Mothership and Rescue Ship, Continued Ship Mechanism Picture Book|publisher=Grand Prix Publishing|year=1991|isbn=978-4876871131|location=|pages=292–317}}</ref>
==Construction and career== ''Chihaya'' was laid down on 15 March 1960 at Mitsubishi Heavy Industries, Tokyo and launched on 4 October 1960. The vessel was commissioned on 15 March 1961. On 1 August 1962, the 1st Submarine Corps was newly formed and incorporated under the Kure District Force.
On 1 February 1965, the 1st Submarine Group was newly formed under the Self-Defense Fleet and was incorporated as a ship under direct control.
On 27 March 1985, due to the commissioning of {{ship|JS|Chiyoda|1983|6}}, the vessel's designation was changed to a special service ship, the ship registration number was changed to ASU-7011, and ''Chihaya'' was transferred to the Kure District Force as a ship under direct control. She was decommissioned on 28 February 1989.
== Gallery == <gallery mode="nolines"> File:ＡＳＲー４０１ ちはや (潜水艦救難艦・初代).JPG|JDS ''Chihaya'' 15th Anniversary Gold Cup. </gallery>
==References== {{Reflist}}
{{Combatant ship classes of the Japan Maritime Self-Defense Force}}
{{DEFAULTSORT:Chihaya (ASR-401)}} Category:1960 ships Category:Ships built by Mitsubishi Heavy Industries Category:Auxiliary ships of the Japan Maritime Self-Defense Force Category:Submarine rescue ships