Principal Dimensions: Len. 142.8 m × Bre. 50.0 m × Dep. 11.0 m
Gross Tonnage: 23,539 GT
Service Speed: 11 knots
Maximum Complement: 130 persons
Class: ClassNK (Nippon Kaiji Kyokai)
Port of Registry: Tokyo
Propulsion System: Azimuth thrusters (3,800 kW × 3 units)
Thrusters: Retractable azimuth thruster (3,200 kW × 1 unit)
Tunnel thrusters (3,200 kW × 2 units)
Generators: 4,630 kW × 4 units, 1,425 kW × 2 units
Jacking System: Electric rack-and-pinion drive
Legs: 92 m × 4 legs
Main Crane: Telescopic slewing crane;
Max. lifting capacity 2,500 t (retracted), 1,250 t (extended)

Type: Icebreaker
Displacement: Approx. 20,000 tons
Length: 138 m (452 ft 9 in)
Beam: 28 m (91 ft 10 in)
Draft: 9.2 m (30 ft 2 in)
Propulsion: Diesel-electric
Four propulsion motors, 22,000 kW (30,000 hp) (combined)
Two shafts; fixed-pitch propellers
Speed: 19.5 knots (36.1 km / h; 22.4 mph) (maximum)
3 knots (5.6 km / h; 3.5 mph) in 1.5 m (4.9 ft) ice
Capacity: 80 scientists
1,100 tons of cargo
Complement: 175
Aircraft carried: 3 helicopters