Specifications

Navigation

High accuracy DGPS ready receiver.
High-precision DVL-aided Inertial Navigation Kearfott T-24 Inertial Navigation System (INS) with Teledyne RDI Doppler Velocity Log (DVL) and direct Sound Velocity Meter.
Positioning accuracy can be maintained over longer duration deployments by ranging to bottom-moored LBL transponders (optional).

Communication

Wireless LAN: IEEE 802.11g compliant
Satellite communications: Full global coverage via Iridium link
Acoustic Modem : For tracking and status updates

Measurements

Length: 2.7 m (typical, dependant on configuration)
Weight in air: 70 - 80 kg (typical, dependant on configuration)
Diameter : 200 mm
Depth rating 500m / 1000m
Battery 1.2 kW Lithium ion rechargeable in Gavia battery module
Max speed: > 5.5 knots
Endurance: Dependant on speed and exact configuration. Typical 4 – 5 hours at 3 knots per rechargeable
Battery Module with all sensors (including Swath Bathymetry)
Vehicle can be operated with two batteries for increased endurance (roughly doubled) or batteries interchanged for near-continuous operations.

Typical Gavia Offshore Surveyor Configuration  

Offshore Surveyor base vehicle (500m or 1000m depth rating) High-precision DVL aided Inertial Navigation System
Swath Bathymetry Module
Side Scan Sonar
Camera
Sound Velocity Meter
Obstacle Avoidance Sonar
AUTOTRACKER from SeeByte
Spare battery module