Altay-class oiler

	Yel'nya in 2018
Class overview
Name	Project 160 (NATO: Altay class)
Builders	Rauma-Repola, Finland
Operators	Soviet Navy; Russian Navy;
Preceded by	Olekma class
Succeeded by	Dubna class
Built	1967–1972
In commission	1968–present
Completed	6
Active	4
Retired	2
General characteristics
Type	Replenishment oiler
Displacement	7,230 tons full load
Length	106.17 m (348 ft 4 in)
Beam	15.4 m (50 ft 6 in)
Draught	6.7 m (22 ft 0 in)
Propulsion	1 B&W-550 VTBN-110 diesel engine; 3,250 bhp (2,420 kW); 1 shaft;
Speed	14 knots (26 km/h; 16 mph)
Range	5,000 nmi (9,300 km; 5,800 mi) at 13 knots (24 km/h; 15 mph); 8,600 nmi (15,900 km; 9,900 mi) at 12 knots (22 km/h; 14 mph);
Capacity	1,300 tons heavy oil; 2,700 tons distilled fuel; 200 tons water; 100 tons lube oil;
Complement	60
Sensors and ; processing systems	2 Don-2 (navigation); NEL-5 (sonar); MGL-25 (underwater telephone);
Electronic warfare ; & decoys	IFF

The Altay class, Soviet designation Project 160, is a class of replenishment oiler built for the Soviet Navy between 1967 and 1972.

Class overview
Yel'nya in 2018
Name	Project 160 (NATO: Altay class)
Builders	Rauma-Repola, Finland
Operators	Soviet Navy Russian Navy
Preceded by	Olekma class
Succeeded by	Dubna class
Built	1967–1972
In commission	1968–present
Completed	6
Active	4
Retired	2
General characteristics
Type	Replenishment oiler
Displacement	7,230 tons full load
Length	106.17 m (348 ft 4 in)
Beam	15.4 m (50 ft 6 in)
Draught	6.7 m (22 ft 0 in)
Propulsion	1 B&W-550 VTBN-110 diesel engine 3,250 bhp (2,420 kW) 1 shaft
Speed	14 knots (26 km/h; 16 mph)
Range	5,000 nmi (9,300 km; 5,800 mi) at 13 knots (24 km/h; 15 mph) 8,600 nmi (15,900 km; 9,900 mi) at 12 knots (22 km/h; 14 mph)
Capacity	1,300 tons heavy oil 2,700 tons distilled fuel 200 tons water 100 tons lube oil
Complement	60
Sensors and processing systems	2 Don-2 (navigation) NEL-5 (sonar) MGL-25 (underwater telephone)
Electronic warfare & decoys	IFF