Super Yacht Sub 3
Asking Price: On Request
About
Experience the ocean like never before with the Super Yacht Sub 3, a compact, three-person submersible designed for effortless integration with luxury yachts.
Engineered for performance, comfort, and safety, this state-of-the-art vessel allows the next owner to explore depths of up to 300 meters in crystal-clear 360° visibility.
Featuring a climate-controlled acrylic pressure hull, precision joystick controls, and seamless launch-and-recovery capability, the Super Yacht Sub 3 combines cutting-edge technology with elegant design.
The Super Yacht Sub 3 is perfectly suited for superyacht operations, allowing either the owner or trained crew members to pilot the submarine with ease.
This particular unit has served aboard two different superyachts and has seen minimal use. It is a first-generation Super Yacht Sub 3, built by U-Boat Worx, and represents the foundation of their renowned luxury submersible line.
Before returning to service, the submarine will require standard maintenance, service, and reclassification. Optional factory upgrades can be installed to bring the vessel up to the latest specifications featured in the current Super Yacht Sub 3 series.
- Specifications
- Accessories
- History
- Availability
| General | |
| Manufacturer | U-Boat Worx B.V., the Netherlands |
| Model | Super Yacht Sub 3 |
| Classification Society | DNV |
| Depth-rating | 300 meter / 1,000 ft |
| Capacity | 1 pilot, 2 passengers |
| Size (L x W x H) – cm | 320 cm x 244 cm x 174 cm |
| Size (L x W x H) – inches | 126 x 96 x 68.5 |
| Weight | 3,800 kg / 8,400 lbs. |
| Pressure Hull | |
| Material | Acyrlic hyperhemisphere window + steel aft section with hatch |
| Hatch | Steel |
| Battery | |
| Type | Li-ion |
| Capacity | 21 kWh |
| Advertised Endurance | 12 hours |
| Propulsion & Performance | |
| Thruster Type | Brushless DC |
| Thrusters Horizontal | 2 x 5.5 kW |
| Thruster Vertical | 2 x 5.5 kW |
| Advertised Speed | 3 knots |
| Safety Systems | |
| Safety Buoy | Yes, 450 meter emergency recovery rope |
| Dive Prevention | In case hatch is not closed and locked |
| Emergency Life Support | 96 hours |
| Dropweight | Yes (manual hydraulic release by pilot) |
| Communication & Tracking | |
| Surface | VHF |
| Underwater | 25 kHz through-water comms |
| Tracking | USBL Evologics |
The submersible comes installed with the following accessories:
- Blueview Sonar
- 5-function Robotic Arm
- USBL Tracking System
- Full External Lights Package
The following ancillary equipment is also part of the package:
- Battery Charger
- Spare Parts Kit
- Manuals
- Topside communication and tracking system
- Dome Cover
Commissioned in 2018 for a new-build superyacht, the Super Yacht Sub 3 spent several seasons aboard in the Mediterranean Sea.
She was later utilised briefly for training operations in Northern Europe before being returned to the yacht.
After the vessel’s resale and delivery to a new owner in Asia, the submarine has remained unused.
While various inspections have been carried out by the original manufacturer, a comprehensive service and reclassification are required to return the submersible to full certification and operational condition.
The Super Yacht Sub 3’s original classification has expired and will require service and a reclassification survey prior to returning to operational status.
All servicing and reclassification work can be performed by the original manufacturer, U-Boat Worx.
The cost of the service is dependent on the location and scope.
At the buyer’s discretion, the submersible may also be shipped to the U-Boat Worx headquarters in the Netherlands or serviced at another approved facility.
As part of the delivery and recommissioning process, the sub will require a series of test dives and new sea trials.
From the time of purchase, and depending on the agreed scope and location of service and testing, an estimated 4-6 month timeline should be taken into account.
SUB71 Guarantees
-
Certification
Submersibles listed through SUB71 undergo a comprehensive inspection and are, or will be, certified by a recognised Classification Society.
-
Training & Support
In collaboration with the manufacturer, SUB71 ensures operational training for the new owner and ongoing technical support.
-
Verified Ownership
SUB71 guarantees that all listed subs come with verified legal documentation, clear title, and full transfer of ownership with no encumbrances.
























