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Alvin Specifications

General
Length: 7 meters (23.1 feet)
Breadth: 2.6 meters (8.4 feet)
Height: 3.68 meters (12.1 feet)
Operating Depth: 4,500 meters
Normal Dive Duration: 6-10 hours
Gross Weight: 20.4 metric tons
Science Basket Payload: 181.4 kilograms (400 pounds)
Personnel Sphere Volume: 4.8 cubic meters

Observation
5 viewports: 3 forward (7” dia.), 2 side (5” dia.)

Electrical Power
2 banks of lead-acid batteries, each 120 V, 125 AH

Communication
Redundant acoustic telephones (voice or code)
Marine band (VHF) radio
Sound-powered phone

Imaging
2 Insite Mini Zeus HD cameras with individual pan and tilt
2 Kongsberg OE14-522 pan/tilt/zoom HD cameras near viewports
Additional situational cameras available
Three 7” HD LCD flat panel displays for in-hull viewing
HD video recorders
Optional HD video/still frame camera for mounting on manipulator
Hand-held digital still and video cameras

Lighting
12 lighting channels
Multiple positionable LED lamps
Situational and emergency lighting
Down-looking survey lighting
Lasers for optical size reference

Propulsion
7 thrusters
Forward, reverse, lateral capability
Auto heading, altitude and depth

Vehicle Sensors
Fiber-optic gyrocompass: Octans or PHINS
Redundant depth sensors

Acoustic Sensors
Reson SeaBat 7125 dual frequency multibeam seafloor profiling sonar
Imagenex 881 profiling sonar
Tritech Seaking S8540 dual frequency scanning sonar

Navigation
Dedicated in-hull navigation with touch screen display
Bottom tracking Doppler velocity log
Auxiliary long baseline acoustic navigation system
Sonardyne Homer Pro location beacons

Manipulators/Sampling
Schilling Titan 4: 7 degrees of freedom
ISE: 6 degrees of freedom
Sample storage: Forward 16 sq. ft. sample basket with payload of 181 kg (400 lbs)
Elevator sampler (mission configurable):
    Free ascent
    Payload: 90 kg (200 lbs.)
Scientific sampling devices: Water samplers, tube corers and bio boxes

Scientific Instrumentation Support
Power: 12, 24 and 120 VDC switched circuits available
Hydraulics: 6 available hydraulic circuits
Digital sensor interface
Intergated data system
In-sphere laptop computers