| Brand |
Bluefin Robotics Corporation |
| Product |
Spray Glider |
| Vehicle type |
Glider |
| Total number of AUVs built |
N/A |
| Commercial options |
N/A |
| Weight of AUV in air (kg) |
52 |
| Maximum payload (kg) |
Variable, free-flooded system |
| Freight weight |
Vehicle case (qty 1): 86kg each; battery case (qty 1): 12kg each; plus spares and support equipment |
| Dimensions (l x w x h) (m) |
2.13 x 0.2 x 0.2 |
| Maximum depth rating (m) |
1500 |
| Number of thrusters: directional/lateral control |
0, buoyancy change |
| Hover capabilities (Y/N) |
N |
| Minimum turning radius (m) |
30 |
| Type of launch & recovery system (LARS) used, how the AUV is recovered |
RHIB, A-frame & winch, crane, ramp |
| Average speed; maximum speed (knots) |
0.39; 0.68 |
| AUV crew size |
2 |
| Number of surface computers required for operation |
1 |
| Storage space requirements (size) |
Variable |
| Other requirements |
Terminal Emulator Program, menu-driven software tool (standard), training course (standard) |
| Standard navigation sensors |
GPS, compass, pressure |
| Optional navigation sensors |
None |
| If an INS is installed, navigation sensors used to update position during a dive |
N/A |
| Standard payload sensors |
Pump CTD |
| Optional payload sensors |
Pumped dissolved oxygen sensor, turbidity, fluorometer, altimeter |
| Total energy content of battery (kWh) |
3.6 |
| Nominal battery power (W) |
< 1 |
| Endurance at nominal power (hours) |
> 4,000 |
| Battery modules can be swapped (Y/N) |
Yes, replaceable |
| Recharge time from empty (hours) |
N/A |
| Acoustic telemetry is fitted (Y/N); baud rate (bits per second) |
N/A |
| Radio telemetry is fitted (Y/N); baud rate (bits per second) |
N/A |
| Ethernet connection for update; maximum speed |
RS232: 9,600 baud |
| Type of data sent to the surface |
N/A (no modem). Data sent via SBD Iridium satellite when at the surface: mission profile data; sensor profile data; navigation data: waypoints, dives, heading, distance, etc.; engineering time-series data; vehicle state-of-health data |
| Control parameters sent to the AUV |
N/A (no modem) |
| Emergency recovery procedure in the event of a total system failure |
Dropweight, Argos satellite |
| Current AUV applications |
Oceanography, research and development platform |
| Further information |
Image: The lightweight Spray changes its buoyancy using a hydraulic pump, enabling it to glide up and down along a saw-tooth path sampling water columns for up to six months at a time |
