Issue 40 Unmanned Systems Technology October/November 2021 ANYbotics ANYmal D l AI systems focus l Aquatic Drones Phoenix 5 l Space vehicles insight l Sky Eye Rapier X-25 l FlyingBasket FB3 l GCS focus l AUVSI Xponential 2021

92 to accurately capture measurements of all three dimensions of airflow with the least possible distortion of the wind field, especially vertical turbulence. Osborn added, “The sensor was developed in conjunction with BlueHalo, a leading provider of advanced engineering solutions and technology to the national security community.” BlueHalo is also the manufacturer of the WP-V3 ACP Atmospheric Characterization Payload UAS sensor suite that the TriSonica Sphere fits on top of. Packaged together, the solution provides a complete, customisable meteorological sensor suite for making low-Earth atmospheric measurements from various UAS platforms. Anemoment expects to begin supplying the TriSonica Sphere towards the end of this year. EPropelled discussed its latest power generation and propulsion systems for UAVs, as well as other aviation applications such as eVTOLs and manned and autonomous aircraft, along with some of the key technologies behind their design and operation. “The ePropelled UAV product line consists of starter/generators, intelligent power systems and DC-DC converters, as well as electronic engine starters that operate with IC-engined UAVs,” said Nabeel Shirazee. “We also make electric propulsion motors and motor controllers for eVTOLs and full electric and hybrid eSTOL aircraft.” The company’s intelligent air motor controllers (iAMCs) are capable of peak efficiencies of up to 99%. Four models are currently available – the 1.9-2.5 kW iAMC100, the 4.1-8.25 kW iAMC300, the 9.7-19.4 kW iAMC900, and the 14.4- 28.85 kW iAMC1200 (all at 48 VDC at the lower end and 72 VDC at the top end). The iAMCs are designed to operate with ePropelled’s UAV propulsion motors, which feature patent-pending designs that have been optimised for greater sensitivity to active air cooling. This contributes to a 98% peak power efficiency, as well as improved performance in thinner air, where heat dissipation becomes challenging. Their stators are wound with copper- clad aluminium wire for an enhanced weight-to-power ratio (as opposed to conventional copper), while sectioned parallel litz windings provide fire breaks and therefore fault tolerance for high-end mission-critical uses. The company’s UAV electric power and propulsion systems can also now feature a patent-pending cast cooling jacket for enhanced thermal efficiency as well as reliability, the technology for which has been implemented in a 50 kW starter/generator for an automotive range extender. EPropelled also discussed its Hybrid Ready line of high-power hybridised UAV propulsion solutions, which includes starter/generators with up to 14 kW of output power that can produce sufficient torque for starting heavy combustion engines. The systems have also been designed to be capable of starting an engine and generating power for the battery simultaneously. Lastly, the company’s patented eDTS (electric/efficient dynamic torque switching) technology is now available for use in automotive applications. It allows an electric motor to provide high torque at low speeds without drawing high current from the batteries. It also provides high speeds at low torque levels without using deep field weakening and at much reduced winding losses. UXV Technologies showcased its newest and lowest-cost GCS yet, the Navigator Tab3. It is effectively an add- on, typically installed on the Samsung Galaxy Tab Active3 tablet, to enable tactile joystick- and button-based control of unmanned vehicles. “There is a growing trend towards BYOD – ‘bring your own device’ – in terms of GCS system familiarity and interoperability, which is why we decided to offer something around a Samsung system designed for mobile workers that a lot of our customers are used to,” explained Steven Friberg. The Active 3 interfaces with the Navigator Tab3 via a USB interface, with a hinge in the bottom and two spring rods to mechanically secure the tablet in place. “It also includes our modular NavBay solution, which is designed to allow quick installation or switching between radios from different suppliers, and overall the system costs 75-80% less than any of our other GCSs,” Friberg said. October/November 2021 | Unmanned Systems Technology Dynamic torque switching from ePropelled