Unmanned Systems Technology 004 | Delair-Tech DT18 | Autopilots | Rotron RT600 | Unmanned surface vehicles | AMRC | Motion control | Batteries

6 Mission-critical info for UST professionals Autumn 2015 | Unmanned Systems Technology Platform one A collaboration between UK boat-builder MSubs, yacht designer Shuttleworth Designs and the University of Plymouth is aiming to develop the world’s first full-sized autonomous solar- and wind- powered trimaran. The 32 m (100 ft) long Mayflower Autonomous Research Ship (MARS) project is set to enter testing in 2019, with a trip across the Atlantic in 2020. It will also carry and launch a variety of unmanned aircraft to conduct experiments during its voyage. The solar cell area required to drive the electric motors for a vessel of this size is too large for efficient sailing and safety in large waves, so the university researchers are developing a folding wing system to increase the solar cell area by 40% in calm conditions. A trimaran was chosen because it provides the most efficient hull form for low-speed travel. The design reduces drag from the wind, and keeps the solar array sufficiently high above the water to reduce wave impact. Without the need for crew quarters, the centre hull can be kept low to the water, and the wings and deck can be separated and raised above on struts. This allows waves to break through the vessel and significantly reduce roll induced by their impacts. The vessel will have a top speed of 20 knots, and at the 5 knots speed used for surveys the team says it will have an unlimited range. MARS will also be used as a testbed for new navigation software and comms technologies, as well as for research into software for automated and autonomous operations for extended duration, advanced satellite comms and cooperative behaviour between autonomous vehicles operating below, on or above the water. Unmanned surface vehicles insight, page 52 Trail-blazing trimaran The MARS autonomous trimaran’s developers say it will have an unlimited range Sea vessels