Taking UUVs Faster, Further & Deeper
no payload, running at peak efficiency gives the micro-UUV a range of a little more than 100 nautical miles in 33 hours. This presumed an operating speed of 3.0 knots. At 0.5 knots the same vehicle configuration could run for three days.In early 2018, Riptide announced a near-total redesign of internal electronics resulting in a new MKII µUUV. This offered a nearly 60% reduction in hotel load power to 3.8 Watts from its first-generation boards. It also reduced the internal wire count in the vehicle by 80%, simplifying the vehicle further. This traditional battery based performance is more than
Riptide Launches Second Generation µUUV
;micro” unmanned undersea vehicle (UUV) product during Oceanology International 2018 in London. According to the manufacturer, the new MK II product has focused on performance and manufacturability improvements over the existing MK I µUUV. Through a near-total redesign of internal electronics the new MKII µUUV offers a nearly 70 percent reduction in hotel load power to 3.5 Watts, extending vehicle endurance across the vehicle speed regime. In addition, new manufacturing approaches, including increased use of molded, rather than 3-D printed, parts allow for expanded
ROV Put to the Test
. Although the ROV was always powered on, it was only in flight when needed. This helped conserve consumable parts, especially the cartridge seals which lubricate the thrusters. Once the submersible was surfaced, Stinger completed a thorough evaluation of every component, from small screws to internal electronics. Though they observed some surface growth, minor corrosion, and salt accumulation on some of the hardware, every piece was still in working condition after spending nearly 14,000 hours in the North Sea. Although Stinger is the first VideoRay customer to use remote wireless deployment in
ROV Survives 19-month Continuous Deployment
ROV was always powered on, it was only in flight when needed. This helped conserve consumable parts, especially the cartridge seals which lubricate the thrusters. Once the submersible was surfaced last month, Stinger completed a thorough evaluation of every component, from small screws to internal electronics. Though they observed some surface growth, minor corrosion and salt accumulation on some of the hardware, every piece was still in working condition after spending nearly 14,000 hours in the North Sea. Although Stinger is the first VideoRay customer to use remote wireless deployment
OSIL Buoy to Monitor Hong Kong's Largest Reservoir
1.2 meter Shearwater buoy from OSIL for installation in Hong Kong's High Island reservoir. The buoy will measure DO, pH, turbidity and chlorophyll in the reservoir, which holds 281,124,000 cubic meters, the largest capacity of Hong Kong's 16 reservoirs. The instrumented buoy features an internal electronics canister that houses a Campbell Scientific CR1000 datalogger and GPRS modem for data transmission. A separate canister holds two 33Ah batteries. A stainless steel top frame accommodates three 36W solar panels, together with a 6Db antenna, 1NM navigation light, and radar reflector. The 50
February 2024
