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Crown — Electric Ships & Boats
Advanced autonomous surface vessel operating at speed across a dark open sea

Crown OS · Integrated vessel intelligence

Sense earlier.
Decide faster.
Move silently.

Electric propulsion, edge autonomy, multi-sensor perception and remote command are engineered as one mission system—not a collection of add-ons.

ElectricAutonomousMulti-sensorMission-ready
Mission state
Autonomous watch
Command
Human on the loop
Perception
Multi-spectrum
Architecture
Payload modular

01 · Signal-to-action architecture

One vessel.
One operating picture.

Crown’s architecture connects propulsion, navigation, perception, communications and modular payload control. Each layer can be configured for the vessel and mission while preserving a common command experience across the fleet.

Crown vessel blueprint identifying propulsion, navigation, sensors, perception, payload, communications and command systems

01

Sense

Radar, AIS, EO/IR, LiDAR, sonar, GNSS and machinery data form the vessel’s live operating picture.

02

Fuse

Navigation, perception and platform data are combined at the edge instead of reviewed in isolated displays.

03

Decide

Mission logic evaluates routes, guard zones, hazards, energy state and operator-defined boundaries.

04

Act

The command layer coordinates steering, propulsion, auxiliaries and approved modular mission payloads.

05

Report

Remote operators receive vessel status, alerts, video and mission records for review and replay.

02 · Sea Machines technology profile

Proven autonomy.
Open integration.

Crown’s configurable command architecture can accommodate established marine-autonomy systems. Sea Machines provides a mature technology path spanning autonomous navigation, remote command, computer vision and secure third-party mission-control integration.

Final equipment fit, integration scope and certification depend on the selected vessel and customer programme.

ANANT autonomous surface vessel demonstrating an unmanned mission platform

SM300

Autonomous command

Waypoint and pattern missions, remote command, live vessel monitoring and collision-avoidance behaviors for new-build or retrofit vessels.

  • ENC mission planning
  • Remote operator override
  • Voyage recording

SM300-SP

Attritable USV autonomy

Sea Machines positions the SM300-SP for high-risk naval missions with vessel-agnostic hardware, TALOS autonomy and configurable mission behaviors.

  • Edge processing
  • Multi-sensor integration
  • Functional safety

AI-RIS

Computer vision

A 4K camera and embedded AI detect, track, classify and geolocate surface targets while supplementing radar in day, low-light and night conditions.

  • Guard-zone alerts
  • Target data export
  • Video recording

SMLINK

Mission-control API

A secure interface for approved third-party command systems to create missions, inspect alarms, manage connected hardware and retrieve logs.

  • HTTPS / JSON
  • OpenAPI specification
  • Mission replay

03 · Autonomous defense systems

Machine speed.
Human authority.

Autonomy handles the repetitive work: maintaining patrols, tracking boundaries, monitoring energy and reporting contacts. Mission authority and any consequential action remain governed by the approved command structure.

ISR

Persistent surveillance

Unmanned patrol routes, sensor watch and live reporting extend maritime-domain awareness without requiring personnel aboard every craft.

C2

Remote command

Shore or mothership operators retain a common operating picture, mission authority and the ability to intervene or abort.

GEO

Perimeter enforcement

Operator-defined geofences, breach alerts and route constraints keep the vessel inside approved mission boundaries.

COL

Collaborative operations

Synchronized routes, escort patterns and coordinated area coverage allow multiple vessels to work as one monitored system.

PAY

Modular payload control

Mission bays and auxiliary channels support approved sensors, communications equipment and customer-specific payload integration.

SAFE

Resilient behaviors

Configured lost-link responses can include all-stop, hold-station, return routing and alerts, depending on vessel and mission approval.

Restricted unmanned vessel silhouette and systems blueprint
Restricted capability

One-way mission configuration

Attritable when the mission requires it.

Crown lists a restricted unmanned combat-vessel configuration for verified government enquiries. Any one-way mission or effect integration is customer-specific, operator-authorized and subject to applicable law, rules of engagement, export controls and programme safety requirements.

Detailed payload, targeting and employment information is not published.

04 · Energy cluster

Battery intelligence.

Mission range is a live calculation—not a number printed on a brochure.

Representative mission-interface view. Final channels and values depend on vessel configuration.

Vessel status

Underway

Speed

16.3 kn

Heading

046°

Projected range

125 nm

Battery overview

59%State of charge

23.2 kWh

Energy remaining

31.9 kWh

Usable capacity

125 nm

Mission range

0 h 41 m

Time to reserve

Health
Excellent
Cycles
156
SOH
98%
Status
Discharging

Power & energy · Real time

Power

33.9 kW

Average

31.2 kW

Peak

40.0 kW

Energy / 60 min

33.2 kWh

-60 min-30 minNow

Operating conditions

V
Battery voltage
605 V
A
Battery current
56.1 A
P
Power output
33.9 kW
T
Cell temp (avg)
30°C
T+
Max cell temp
32°C
T-
Min cell temp
28°C
TH
Thermal status
Optimal
ISO
Isolation resistance
> 20 MΩ

Battery bank · 32 modules

01

3.79 V
29°C

02

3.82 V
31°C

03

3.81 V
30°C

04

3.80 V
29°C

05

3.79 V
31°C

06

3.82 V
30°C

07

3.81 V
29°C

08

3.80 V
31°C

09

3.79 V
30°C

10

3.82 V
29°C

11

3.81 V
31°C

12

3.80 V
30°C

13

3.79 V
29°C

14

3.82 V
31°C

15

3.81 V
30°C

16

3.80 V
29°C

17

3.79 V
31°C

18

3.82 V
30°C

19

3.81 V
29°C

20

3.80 V
31°C

21

3.79 V
30°C

22

3.82 V
29°C

23

3.81 V
31°C

24

3.80 V
30°C

25

3.79 V
29°C

26

3.82 V
31°C

27

3.81 V
30°C

28

3.80 V
29°C

29

3.79 V
31°C

30

3.82 V
30°C

31

3.81 V
29°C

32

3.80 V
31°C

Normal Reserve Fault

Energy use · Live

Propulsion58%
Mission systems18%
Sensors12%
Communications7%
Auxiliary5%

Total power

33.9 kW

05 · Smart by design

Intelligence across the fleet.

The same operating logic scales from an electric day boat to an unmanned patrol platform: know the vessel, understand the environment and keep the operator in control.

Sea Rider electric craft viewed from above

Predictive energy management

Range, power draw, mission load and reserve state are evaluated together so the operator sees the cost of every decision.

ANANT autonomous surface vessel underway

Multi-sensor perception

Radar, optical, infrared, AIS and navigation inputs create a more useful operating picture than any single sensor alone.

XSV-17 high-speed defense craft underway

Software-defined missions

Routes, patrol patterns, guard zones and approved behaviors can be configured for the assignment without redesigning the hull.

System configuration

The public page is the architecture. The briefing is the fit.

Sensor selection, autonomy modes, communications, energy reserve, payload interfaces and restricted mission capabilities are configured for the customer and shared after verification.

Request a technical briefing