Project 23550 patrol ship

{{Infobox ship image

|Ship image=Ледокол "Иван Пананин" 01.jpg

|Ship image size=

|Ship caption=Ivan Papanin in July 2024

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{{Infobox ship class overview

|Builders=

• Admiralty Shipyards, St. Petersburg
• Vyborg Shipyard, Vyborg

|Operators=

• {{navy|Russia}}
• {{coast guard|Russia}}

|Class before=* {{sclass|Ivan Susanin|patrol ship|4}}

• {{sclass2|Purga|patrol ship|4}}

|Class after=

|Subclasses=

|Built range=2017–present

|In commission range=August 2025 (current estimate)

|Total ships building=4

|Total ships planned=4{{cite web|url=https://flotprom.ru/2019/%D0%90%D0%B4%D0%BC%D0%B8%D1%80%D0%B0%D0%BB%D1%82%D0%B5%D0%B9%D1%81%D0%BA%D0%B8%D0%B5%D0%92%D0%B5%D1%80%D1%84%D0%B818/|title=Два патрульных ледокола проекта 23550 построят для ФСБ|language=ru|website=Mil.Press FlotProm|date=25 October 2019|access-date=25 October 2019|archive-date=12 December 2019|archive-url=https://web.archive.org/web/20191212034521/https://flotprom.ru/2019/%D0%90%D0%B4%D0%BC%D0%B8%D1%80%D0%B0%D0%BB%D1%82%D0%B5%D0%B9%D1%81%D0%BA%D0%B8%D0%B5%D0%92%D0%B5%D1%80%D1%84%D0%B818/|url-status=dead}}

|Total ships completed=

|Total ships cancelled=

|Total ships active=

|Total ships laid up=

|Total ships lost=

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{{Infobox ship characteristics

|Hide header=

|Header caption=

|Ship type=Icebreaking patrol ship

|Ship displacement=

• {{cvt|6800|t|lk=in}} standard{{cite web|url=http://www.thedrive.com/the-war-zone/8680/this-is-russias-warship-being-built-specifically-for-fighting-in-the-arctic|title=This Is Russia's Warship Built Specifically For Arctic Fighting|author=Tyler Rogoway|website=The Drive|date=27 March 2017|access-date=25 October 2019}}
• {{cvt|8500|t}} full load

|Ship length={{convert|114|m|ftin|lk=in|abbr=on}}

|Ship beam={{convert|18|m|ftin|abbr=on}}

|Ship draught={{convert|6|m|ftin|abbr=on}}

|Ship ice class=RS Arc7{{cite web|url=http://admship.ru/press/news/ao-admiralteyskie-verfi-spustilo-na-vodu-patrulnyy-korabl-ledovogo-klassa-ivan-papanin/|title=АО "АДМИРАЛТЕЙСКИЕ ВЕРФИ" СПУСТИЛО НА ВОДУ ПАТРУЛЬНЫЙ КОРАБЛЬ ЛЕДОВОГО КЛАССА "ИВАН ПАПАНИН"|language=ru|website=Admiralty Shipyards|date=25 October 2019|access-date=1 November 2019}}

|Ship power=4 × Kolomna {{nowrap|28-9DG}} diesel generators (4 × 3,500 kW){{cite web|url=http://www.kolomnadiesel.com/news/detail.php?ID=969|title=На Коломенском заводе запущено производство основных и вспомогательных дизель-генераторов для патрульного ледокола "Иван Папанин"|language=ru|website=JSC "Kolomensky Zavod"|date=21 April 2017|access-date=25 October 2019}}

|Ship propulsion=* Diesel–electric propulsion; two shafts (2 × 6,300 kW)

• Two bow thrusters{{cite web|url=http://www.ruselprom.ru/about/press-tsentr/novosti/ruselprom-zapustil-v-proizvodstvo-elektricheskie-mashiny-dlya-ledokola-ivan-papanin/|title="Русэлпром" запустил в производство электрические машины для ледокола "Иван Папанин"|language=ru|website=Ruselprom|date=20 June 2017|access-date=25 October 2019|archive-date=25 October 2019|archive-url=https://web.archive.org/web/20191025183818/http://www.ruselprom.ru/about/press-tsentr/novosti/ruselprom-zapustil-v-proizvodstvo-elektricheskie-mashiny-dlya-ledokola-ivan-papanin/|url-status=dead}}{{cite web|url=http://russianships.info/eng/warships/project_23550.htm|title=Project 23550 Arktika|website=Russianships.info|access-date=25 October 2019}}

|Ship speed={{convert|18|kn|lk=in}}

|Ship range={{convert|10000|nmi|lk=in|abbr=on}} at {{convert|10|kn}}

|Ship complement=60 core crew + 50 extra mission crew

|Ship sensors=

|Ship EW=

|Ship armament=

• 1 × 76.2 mm AK-176 naval gun{{cite web|url=https://ria.ru/defense_safety/20180321/1516923040.html|title="Адмиралтейские верфи" объяснили сдвиг сроков передачи сторожевых кораблей|language=ru|website=RIA Novosti|date=21 March 2018|access-date=25 October 2019}}
• 4 × 12.7 mm Kord machine guns
• 2 × 30 mm AK-630M CIWS ("Ermak" type)
• 8 × 3M-54 Kalibr missiles ("Arktika" type)

|Ship armor=

|Ship aircraft=

|Ship aircraft facilities=Helipad and hangar for {{nowrap|Ka-27}} helicopter

|Ship notes=

}}