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The Gavia Offshore Surveyor Autonomous Underwater Vehicle (AUV) is a self-contained, low logistics,modular survey platform capable of delivering high quality data while operating from vessels of opportunity or from shore.


The Gavia AUV can be a productive asset to any commercial survey operation and has been proven in real world environments by numerous commercial survey companies. The Gavia can provide cost effective data when compared to traditional means using surface vessels and ROVs. 

                                                                                                                                      

SPECIFICATION DESCRIPTION
TECHNICAL SPECIFICATIONS: LENGTH2.7m (typical, depends on configuration)
TECHNICAL SPECIFICATIONS: WEIGHT IN AIR70-80 kg (typical, depends on configuration)
TECHNICAL SPECIFICATIONS: DIAMETER200 mm
TECHNICAL SPECIFICATIONS: DEPTH RATING500m or 1000m
TECHNICAL SPECIFICATIONS: BATTERY MODULE1.2 kW lithium ion rechargeable cells per module
TECHNICAL SPECIFICATIONS: MAX SPEED>5.5 knots
TECHNICAL SPECIFICATIONS: ENDURANCEDependent on speed and exact configuration. Typically 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 double) or batteries can be field swapped for continuous operations.
COMMUNICATION: WIRELESS LANIEEE 802.11g compliant
COMMUNICATION: SATELLITE COMMUNICATIONSFull global coverage via Iridium link
COMMUNICATION: ACOUSTIC MODEMFor tracking and status updates
NAVIGATIONHigh accuracy DGPS ready receiver High-precision DVL-aided 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 utilizing Ultra Short Baseline (USBL) or ranging to bottom-moored Long Baseline (LBL) transponders (optional).
TYPICAL CONFIGURATIONOffshore Surveyor base vehicle (500m or 1000m depth rating) High-precision DVL aided Inertial Navigation System (INS) LBL or USBL aiding Swath bathymetry module Side scan sonar and camera

  

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