Bismarck Expeditions

Worlds Deepest Diving Manned Submersibles

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Scharnhorst Class
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Mir I and Mir II (Russia)
Designers: Rauma-Repola Oy., Finland
P.P.Shirshov Institute of Oceanology of Russian Academy of Sciences, Russia
Builder: Rauma-Repola Oy., Finland
Owner: P.P.Shirshov Institute of Oceanology of Russian Academy of Sciences, Russia
Start of construction: May 1985
Commissioning: December 1987
Overhulling: 1994
Ocean trials (depth): MIR I 6.170 meters
MIR II 6.120 meters
Operating depth: 6.000 meters
Crew: 3
Power Supply: Nickel Cd batteries (oilfilled) 100 kWh
DC-AC Inverter N1 12 kWh
DC-AC Inverter N2 5 kWh
Life support 246 man/hours
Maximum speed 5 knots
Pressure hull: Material Ni steel
Diameter of main sphere 2,1 meters
Viewports Central: 200 mm diameter
Side: 2 X 120 mm
Dimensions: Length 7,8 meters
Width 3,6 meters
Height 3,0 meters
Trusters: Main hydraulic - Stern 9 kW
Side (hydraulic) 2 X 2.5 kW
Ballast: Air-soft-tanks (water-air blow) 1500 kgf
Variable (water) 999 kgf
High pressure pump 1 10 l/min on 6000 meters
High pressure pump 2 3 l/min on 6000 meters
Trim Water (forward AFT - spheres) + 25 degrees
Dry weight 18,6 t
Emergency system: Nickel drop shots (electr.hold) 350 kg
Emergency life support system jettisonable: manipulators, trusters, low battery box, rescue buoy etc.
Hydraulic systems: One 12 kW
Two 5 kW
Three (emergency) 0,5 kW
Navigation systems: LBL Acoustic positioning
Gyro compass
Long distance sonar-echo-sounder 1000 meters
Speed log
Observation: Acoustic imaging sonar 250 meters
TV-cameras PAL, NTSC
Still-cameras 35 mm - 70 mm
HMI lights 4 X 1200 W
Halogen lights
Payload: 250 kg
Research: Data acquisition system 12 external sensors
Two identical hydraulic manipulators 7 degrees of freedom
Slup gun, geological tubes, biological nets, water bottles
Communication: UQC telephone, VHF radio etc.
Beam (with side thrusters): 3,8 meters
Mother Ship: R/V Akademik Mstislav Keldysh
Home port: Kaliningrad, Russia


© John Asmussen, 2000 - 2013. All rights reserved.