Pisces V Deep Diving Manned Submersible
- Length: 20'
- Width: 10' 6"
- Height: 11'
- Weight: 13 tons
- Payload: 175 lbs.
- Crew: 1 Pilot 2 Observers
- Life Support: 140 hours for 3 people
- Max. Operating Depth: 6,280 ft (~2000
- Power: 2 lead-acid battery systems:
- 120 VDC at 330 Ah capacity
- 12-24 VDC at 220 Ah capacity
- Propulsion: 2 side mounted reversible
thrusters tiltable through 90 degrees.
- Speed: 3 Kts.
- Duration: 7–9 hours
- Builder: International Hydrodynamics
of Vancouver, British Columbia.
- Classed by American Bureau of
- Materials: Personnel sphere, Trim
sphere, and Aft sphere: HY 100 steel
- Frame: Welded, oil-filled, pressure
compensated tubular steel.
- Viewports: 3 forward-looking acrylic
windows, 6" interior-14” dia exterior
- Penetrators: 28 316 SS inserts to
pass electrical, hydraulic air, and oxygen supplies
through the hull.
- Oxygen and CO2 absorbent
for daily use is sufficient for twice normal mission
- Independent emergency supplies
available for 120 hours for 3 people.
- Full face air masks available in case
of cabin air contamination.
- MSHA-NIOSH approved self-contained
Oxygen-Generating Breathing Apparatus available for 3
- Soft ballast tanks displace a total
of 1904 lbs. using H.P. air.
- Droppable descent/ascent weights.
- Hard ballast tanks and hydraulically
powered seawater pump give 450 lbs. of trim
- Carried in 8 externally mounted
cylinders with a total capacity of 890 scf at 3000
psi. Used for ballast system and emergency breathing
- Two 22 ft3 cylinders
available for daily use.
- Independent emergency supply located
in aft sphere has a capacity of 454 cu. ft. at 2640
- Cabin atmosphere is monitored by
oxygen and CO2 analyzers.
- Oxygen level is maintained by
- CO2 is removed by
electrically powered scrubber unit and granular CO2
- Electric pump and solenoids provide 3
gallons per minute at 3000 psi to the following
- HYCO manipulator
- Thruster tilt
- 2 camera pan and tilt systems
- Ascent and descent drop weights
- Tiltable scanning sonar head
- Sample basket up and down
- 2 spare functions for special
science sample collecting systems.
- A separate dedicated hydraulic
system operates a Schilling Titan 4 manipulator.
This system can be used as utilities hydraulics in
the event of an emergency via a manually operated
Controls and Instrumentation
- The pilot has available all controls
necessary for the operation of all submersible systems
in both normal and emergency situations including
thruster controls, buoyancy controls and indicators,
battery power instruments, depth and pressure gauges,
magnetic compass, life support monitoring instruments
and controls, and surface and underwater
The submersible is equipped with the
following items and can be configured as necessary to
accommodate a variety of mission requirements:
- Insite Pacific MINI-ZEUS HDTV camera
- ROS low-light CCD color camera
- B&W low-light wide-angle CCD
- Digital video recorders
- Two hydraulically operated
- General purpose science basket
- Applied Microsystems electronic CTD
- Tritech SeaKing digital HD sonar
- Kongsberg-Simrad 1007 200 m altimeter
- Benthos multi-frequency pinger
- TrackLink 5000HA USBL submersible
- Sonatech long baseline acoustic
- External lights: 3- 250 W, 2-500 W
tungsten 2-400 W HMI’s available
- 2 KVH digital magnetic compasses
- Externally mounted temperature probes
with internally mounted monitors
- Suction sampler 8-bottle Rosette
- Hydraulic cutters
- Hydraulic rotary saw
- Laser scaling system
- Push core samplers
- Sealable sediment scoops - 4 arrays
of 9 samplers, capacity ~1kg ea
- Water samplers - 2 arrays of 6
samplers, capacity ~700ml ea
- Main emergency drop weight 480 lb
- Port emergency drop weight 250 lb
- Starboard emergency drop weight 250
- Thrusters can be jettisoned in the
event of entanglement
- Extended life support capacity for 3
to 5 days, mainly dependent on crew weight
- Salt water leak detectors in bilge,
battery boxes, electrical junction boxes, and
- Acoustic locating pinger receiver
- Emergency self contained re-breathers
- Full face mask air breathing system
for contaminated atmosphere
- Emergency life support rations,
water, and space blankets
- One main and one backup 24 VDC
emergency battery power banks to power:
- CO2 scrubber
- circulating fan
- cabin lights
- underwater telephone
- VHF radio
- tracking transponder
- hydraulic solenoids
- Soft ballast tanks have an
accessible exterior port to allow a rescue vehicle
to insert an external air source to add buoyancy.
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