Apollo Duck Boat Archive

Boat Archive > Subeo > Aquarius Craft

2011 Aquarius Craft

The construction and development of a submersible calls for expertise in all aspects of engineering. A submersible operates in a very hostile environment under extreme pressure. The vehicle has to carry all the necessary equipment and consumables to maintain the well-being of the occupants for the planned mission time. The submersible is more akin to a manned space vehicle than to a ship, land vehicle or aircraft.

Through its dedicated approach to uncompromising design and the employment of recognized specialists in life support engineering, battery technology, underwater navigation/communication systems, electronic control systems and propulsion, SUBEO has the expertise and experience to construct submersibles to the requirements of its customers.

The latest computer-aided design techniques are employed in the design process, enabling the vehicle to be ‘built’ in the computer and tailored to the customer’s requirements.


Personnel - one pilot, two passengers.
Operating depth - 50M or 100M, (160 – 328ft).
Length-5M, width-2.5M, height-2.3M, (16.4 x 8.2 x 7.5ft).
Weight - approximately 3800kg (8398lbs).
Main battery capacity – 22kwh.
Secondary battery – 24V 72 amp hour.
Emergency primary lithium battery.
Integrated thrusters – 9 No.
Speed 1 to 7 knots.
Surface buoyancy reserve – 3000kg, (6630lbs).
Water trim – 200kg, (442lbs).
Outer hull – GRP.
Pressure vessels – carbon steel, hot zinc sprayed and 2 part polyurethane.
Hatch surfaces - stainless steel.
Welded in penetrators – stainless steel.
Viewports – 4 No 3 x 600, (23.6 inches), 1 x 500 (19.7 inches) flanged hemispherical to PVHO1.
Ballast and control air – 4 x 15L 230 bar steel bottles.
Lead drop and trim 250kg, (552lbs).
Hatch diameter – 545mm. (21.5 inches)
Freeboard below hatches – 760mm, (30 inches).
External lights.
All systems monitored and controlled by Mitsubushi
PLC (Programmable Logic Controller) with modem
for remote diagnostic and programme adjustment
for individual missions and training.


Manual operation of main ballast air.
250kg, (552lbs) - lead/trim drop.
Diver connections to surface buoyancy tanks.
Location pinger.
Buoy release with optional emergency beacon.
Navigation lights.


Mission time oxygen – 3 hours in flasks 0.7L .
CO2 removal for mission time by scrubber & ‘Sofnolime’
72 hours emergency life support by oxygen generators.
72 hours CO2 removal by self contained modular systems


Dedicated PLC for life support monitoring.
Oxygen sensor and display on integrated screen.
CO2 infra-red sensor and display on integrated screen.
Emergency lithium battery for life support monitoring.
Warnings displayed on screen.


Depth below craft.
Heading fluxgate compass.
Battery reserve.
Current drain.
Thruster status.
Temperature internal/external.
System alarms.
Trim levels water and lead.
Surface buoyancy tank status.
Hatch status.
Internal pressure.
Touch screen for automatic buoyancy control.
Internal lights – white/red high intensity LED.
Control by 2 No, 12 function Daco Scientific joysticks.
Manual pressure equalization valve.


Through water OTS.
Full internal intercom.
VOX or ‘push to talk’ operation.
VHF surface system.


Full stainless steel - (316) construction.
Operating depth – 100M, (328ft).
Fully integrated underwater navigation system.
Hull can be supplied in any colour.
Seats available finished in various materials.
Full video camera system – 4 fixed, 1 fully adjustable. ‘MiniDV’ recorder and monitor.
Audio mini disk.
Forward looking sonar.
Comfort cooling.
Range of geophysical equipment – magnetometers etc.
High range, double capacity battery.
Single point lifting attachment.
Surface GPS


High capacity charger for batteries.
Launching trailer.
Full set of spares can be supplied.
Maintenance and training schemes available.
Road trailer/vehicle available depending on local transportation legislation with regard to vehicle/braking/maximum trailer weight.

ID: 3924