Irtysh is a Russian Navy hospital ship of the Ob-class. Irtysh is part of the Pacific Fleet.

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Irtysh underway on 1 July 1994
History
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Name	Irtysh (Иртыш)
Namesake	Irtysh
Owner	Russian Navy
Ordered	January 1981
Builder	Adolf Barsky, Szczecin
Laid down	25 November 1988
Launched	6 July 1989
Commissioned	31 July 1990
Homeport	Vladivostok
Identification	IMO number: 8956499
Status	Active
General characteristics
Class and type	Ob-class hospital ship
Displacement	Standard: 11,300 tons
Length	145.7 m (478 ft)
Beam	19.6 m (64 ft)
Draft	6.2 m (20 ft)
Speed	19.8 knots (36.7 km/h; 22.8 mph)
Range	11,600 nmi (21,500 km; 13,300 mi) at 14 kn (26 km/h; 16 mph)
Boats & landing craft carried	10 lifeboats
Troops	300-450 patients
Complement	207 crew
Aircraft carried	1 x Kamov Ka-25
Aviation facilities	Helipad and hangar

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The four ships of the Ob-class hospital ships were designed to provide medical and recreational facilities. They were also employed as personnel transports. They have civilian crews but carry uniformed naval medical personnel. The ships are fully equipped with surgical equipment. Later two units are Project B-320 II, implying a modification to the basic design; the external differences are minor.

She was laid down on 25 November 1988 and launched on 6 July 1989 by Adolf Barsky shipyard. Commissioned on 31 July 1990 as a hospital ship.^[1]

In 2016, the modernization of the Irtysh's equipment began, the first phase of which was completed in August. She went under modernization again with telemedicine equipment in 2017.^[2]

The objectives of Irtysh now are receiving, distributing, providing medical assistance to the wounded, sick and injured in peacetime or during hostilities. Evacuation of victims from ships and vessels. Organization of events for the rest of crews of ships and submarines at sea.^[3]

• Aerial view of Irtysh underway on 1 January 1994.
• Aft view of Irtysh on 26 July 2009
• Irtysh on 10 September 2013
• Irtysh in the background on 10 September 2013
• Irtysh on 1 May 2016
• Vladivostok bridge under construction with Irtysh in the foreground on 10 July 2010
• A Ka-27 helicopter landing aboard Irtysh with its crew bringing a patient inside the ship on 13 January 2017
• Operating room of Irtysh on 13 January 2017