ISE Theseus
A historical Canadian defence AUV built for under-ice cable-laying research and subsequently placed in storage.
- Country / region
- Canada
- Programme status
- In service / use documented
- Sources reviewed
- 21 Sept 2026
- Primary domain
- Underwater
- System type
- Autonomous underwater vehicle
- Developer / manufacturer
- International Submarine Engineering
- Origin / production countries
- Canada
- Other names
- No additional names recorded
- Variants / configurations
- Not distinguished in reviewed sources
- Operators / programme customers
- Canada Department of National Defence — owner; vehicle stored at ISE
Evidence & current status
Documented historical use; manufacturer explicitly reports storage, not current operational fleet service.
Role & capabilities
- Under-ice engineering research
- Cable deployment
Specifications in context
- Configuration
- Historical large autonomous cable-laying research vehicle
Supplier baseline; installed equipment and operating conditions affect performance.
Source - Hull / propulsion
- Not established in the reviewed public sources.
Public evidence gap. No estimate or neighbouring variant value has been substituted.
Source - Dimensions
- Not established in the reviewed public sources.
Public evidence gap. No estimate or neighbouring variant value has been substituted.
Source - Displacement / mass
- Not established in the reviewed public sources.
Public evidence gap. No estimate or neighbouring variant value has been substituted.
Source - Payload
- Not established in the reviewed public sources.
Public evidence gap. No estimate or neighbouring variant value has been substituted.
Source - Endurance
- Historical deployment exceeded 60 hours
Programme result under ice, not a current production guarantee.
Source - Range
- Historical documented cable runs: 220 km
Cable distance in the programme, not an advertised maximum vehicle range.
Source - Speed
- Not established in the reviewed public sources.
Public evidence gap. No estimate or neighbouring variant value has been substituted.
Source - Operating depth
- Not established in the reviewed public sources.
Public evidence gap. No estimate or neighbouring variant value has been substituted.
Source - Sensors
- Not established in the reviewed public sources.
Public evidence gap. No estimate or neighbouring variant value has been substituted.
Source - Communications / control
- Not established in the reviewed public sources.
Public evidence gap. No estimate or neighbouring variant value has been substituted.
Source - Launch / deployment
- Not established in the reviewed public sources.
Public evidence gap. No estimate or neighbouring variant value has been substituted.
Source