| Brand |
Hafmynd Ehf |
| Product |
Gavia AUV |
| Vehicle type |
Low logistics, man-portable AUV |
| Total number of AUVs built |
17 |
| Commercial options |
Various |
| Weight of AUV in air (kg) |
From 48. Weight can vary depending on configuration |
| Maximum payload (kg) |
Maximum payload dependent on physical size and power consumption |
| Freight weight |
Dependent on configuration being shipped. Typically 150kg |
| Dimensions (l x w x h) (m) |
From 1.7 (length) x 0.2 (diameter) |
| Maximum depth rating (m) |
1,000+ |
| Number of thrusters: directional/lateral control |
Single propeller with 4 independent control surfaces |
| Hover capabilities (Y/N) |
Not currently |
| Minimum turning radius (m) |
A function of configuration. Typically about 10m but can be lowered |
| Type of launch & recovery system (LARS) used, how the AUV is recovered |
Typically from the shore, RIB, vessel of opportunity with a simple hoist mechanism used if not recovered by hand |
| Average speed; maximum speed (knots) |
Typical survey: 3.5; max. just under 6 |
| AUV crew size |
Typically 1 operator and 1 assistant. Data processing can vary |
| Number of surface computers required for operation |
1 |
| Storage space requirements (size) |
Minimal. Can be shipped in boxes roughly 1.5m x .7m or two larger cases roughly 2.5m in length |
| Standard navigation sensors |
Fluxgate compass, GPS |
| Optional navigation sensors |
DVL INS (Kearfott T24 or T16), LBL, USBL |
| If an INS is installed, navigation sensors used to update position during a dive |
LBL, USBL |
| Standard payload sensors |
OAS, modem |
| Optional payload sensors |
Varied including side-scan sonar, swath bathymetry, camera, environmental sensors, autotracker, custom payload modules are available |
| Total energy content of battery (kWh) |
1.2 |
| Battery modules can be swapped (Y/N) |
Y |
| Recharge time from empty (hours) |
5 to 6 |
| Acoustic telemetry is fitted (Y/N); baud rate (bits per second) |
Y |
| Radio telemetry is fitted (Y/N); baud rate (bits per second) |
Is being implemented for Gavia Offshore model systems |
| Ethernet connection for update; maximum speed |
WLAN: 11Mb/s |
| Type of data sent to the surface |
Position, health, mission progress, other mission information |
| Control parameters sent to the AUV |
Various |
| Emergency recovery procedure in the event of a total system failure |
Vehicle is positively buoyant, will float to surface. Various components to emergency system |
| Current AUV applications |
Military including MCM and ASW/sonar training; commercial survey applications; various scientific applications including oceanography and hydrographic surveys; pipeline inspection including autotracking; environmental surveys |
