Dark blue small-scale boat model with flat top and two vertical supports holding a horizontal base underneath.
Spotter Platform

Spotter Scout Technical Specs

Complete technical specifications for Spotter Scout, an uncrewed surface vehicle developed in partnership with Online Oceans. Review vessel, power, sensing, navigation, and maintenance specs.

Technical Specifications

Download the spec sheet
VESSEL
Length
2.5 m
Beam
0.8 m
Draft
0.6 m
Weight
~80 kg
Top Speed
3.5 knots
Endurance
6+ months
Battery-Only Range
200 nm
Hull Construction
Composite
POWER
Solar Array
340 W
Battery Capacity
2 kWh lithium-ion
Battery Certification
UN 38.3
Battery Location
Keel-mounted, fully submerged
SURVIVABILITY
Operational Sea State
Sea State 7–8
Survivable Sea State
Sea State 9
Self-Righting
Yes (1–2° inverted stability angle)
Moving Parts
2 (thruster + rudder servo)
Hull Type
Flooded (no sealed air volume)
NAVIGATION & CONTROL
Station Keeping Radius
50 m – 10+ km (configurable)
Waypoint Navigation
Multi-point with configurable loiter times
Collision Avoidance
AIS-based, configurable radius
Fleet Capacity
50+ units per operator
Command & Control
Browser-based (desktop and mobile)
SENSING
Wave Frequency Range
0.03 – 0.8 Hz (30s – 1.25s)
Wave Direction Range
0 – 360°
Wave Displacement Accuracy
Approximately ± 2cm
Sampling Rate
2.5 Hz
Wind
Speed and direction (derived)
Barometer Accuracy
±0.5 mbar at 25°C
Barometer Range
700 – 1100 mbar
Camera
HD 1080p, time-lapse and live stream via Starlink
PAYLOAD
Payload Capacity
30 kg / 300L
Payload Voltage
5 - 24 V
Payload Mounting
Surface, subsurface, or towed
Subsurface Depth
~1 m (keel-mounted)
Bristlemouth
1 compatible payload per vehicle
COMMUNICATIONS
Primary Telemetry
Iridium (configurable intervals)
High-Bandwidth
Starlink (on demand)
Backup
Spotter Iridium SBD (independent)
AIS
Receiver standard; Class B transceiver optional
MAINTENANCE
Service Interval
6 months
Service Items
Thruster bearings, rudder servo, antifoul
Battery Lifespan
~2 years (condition-monitored)
Shipping
Sea freight (UN 38.3 lithium battery)