Akademik Ioffe

	Akademik Ioffe off the coast of Nova Scotia, Canada
History
Russia
Name	Akademik Ioffe
Operator	Shirshov Institute
Port of registry	1989–1992: Kaliningrad, Soviet Union; 1992 onwards: Kaliningrad, Russia;
Builder	Hollming, Rauma
Yard number	266
Laid down	27 February 1987
Launched	29 August 1987
Completed	9 February 1989
Identification	IMO number: 8507731; MMSI number: 273413400; Callsign: UAUN;
Status	In service
General characteristics
Tonnage	6,450 GT; 1,935 NT; 1,738 DWT;
Length	117.17 m (384 ft 5 in)
Beam	18.22 m (59 ft 9 in)
Draft	5.90 m (19 ft 4 in)
Installed power	2 × 6CHN 40/46 (2 × 2,576 kW)
Propulsion	Two shafts; controllable pitch propellers; Wärtsilä 600 kW bow and stern thrusters;
Speed	16.0 knots (29.6 km/h; 18.4 mph)
Capacity	117 passengers

Akademik Ioffe is a research vessel, named after the Soviet physicist Abram Fedorovich Ioffe.

Built in 1988, the vessel has a displacement of 6,600 tons, and a length of 364 ft (111 m). Akademik Ioffe and Akademik Sergey Vavilov were built as a joint project. Both ships feature a vertical shaft about two meters in diameter, which opens from the main deck into a special room, from which an acoustic receiver or a transmitter can be lowered to below the waterline by means of a winch. The vessels were used for experiments on the long-range propagation of sound in the ocean.

The vessel belongs to the Institute of Oceanology. P. P. Shirshov, of the Russian Academy of Sciences.

She was chartered by One Ocean Expeditions until 2019.

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