Unmanned Systems Technology 008 | Alti Transition UAS | Ground control systems | Xponential 2016 report | Insitu Orbital N20 | UAVs | Solar power | Oceanology International 2016 report

87 Additionally, basic rudders are provided, but the customer can design and print rudders tailored to the mission and operating environment. “This freedom allows the user to optimise the hydrodynamics of the vehicle, to meet the physical challenges it will endure during its deployment,” said Jordan Thomas from Planet Ocean, Gabri’s UK partner. The resulting craft is 1200 mm long and 160 mm wide (500 mm including motors), weighs 24 kg and has been tested to a depth of 100 m. Endurance is from two to eight hours, depending on sensor payload, and the top speed is 3 knots, although that speed can be increased by reconfiguring various elements of the AUV. Nortek has developed a new DVL module. In line with the trend towards smaller UUVs, the 1 MHz unit is 12.2 cm tall, 11 cm in diameter, and weighs 2.8 kg – 800 g for the head and electronics, and 2 kg for the titanium housing. As well as being smaller than standard DVLs, the module offers more precise navigation than current systems by including information such as data quality parameters and time stamps with a 1 ms resolution in the data stream. Minimum accuracy of water tracking and current profiling run to 1% (±0.5 cm/s), and long-term accuracy of bottom track velocity up to ±0.2%/±0.1 cm/s, with either 16 or 64 Gbytes of internal memory available. The module can use an RS232 or RS422 serial interface, or an Ethernet interface with auto-MDIX and speeds from 10 to 100 Mbit/s, running on TCP/ IP, UDP and HTTP protocols. It also offers bottom lock for greater ranges, soft bottoms, and operation very close to the bottom with a 1000 m depth rating. Teledyne unveiled its latest riverine USV, the Z-Boat 1800 RP, with a number of improvements over previous designs, including a modular deck structure for cameras, antennae and additional sensor mounting for shallow coastal mapping missions. The newly ruggedised IP67- rated hull comes with an interchangeable sensor well beneath the vehicle, for expedient integration of Teledyne payloads such as the Odom MB2 and CV100, and various RDI ADCPs and Tritech side scan sonars. Although boats of this size often use fibreglass, the Z-Boat’s hull is built from ABS with an acrylic layer, for improved UV resistance, workability, and for quick Oceanology International 2016 | Show report Unmanned Systems Technology | June/July 2016 Nortek’s new DVL is smaller than standard units Once built, the SeaStick AUVino can reach a depth of 100 m