Unmanned Systems Technology 026 I Tecdron TC800-FF I Propellers I USVs I AUVSI 2019 part 1 I Robby Moto UAVE I Singular Aircraft FlyOx I Teledyne SeaRaptor I Simulation & Testing I Ocean Business 2019 report

62 Show report | AUVSI Xponential 2019 “RASCOW is written to dynamically adjust the video frame rates, and therefore the data load, according to the condition of the network. The data transmitted is also AES 256-encrypted. One of our tests took place at 30,000 ft, at 600 mph, with a satellite input while achieving a strong constant video output of about 2 Mbit/s.” The system weighs about 410 g, measures 123.5 x 78 x 35.5 mm and can be integrated into heavy-lift UAVs conducting camera broadcast work. Applications for the Zao-S include sporting and entertainment events, news, law enforcement and first response. Pegasus Aeronautics showcased its newest propulsion system, the GD70 range extender. An air-cooled 70 cc two- stroke, it features an electric generator designed directly into the crankcase, being integral with the engine behind the propeller mount. “We have been building gas- electric power units for a while now, but increasingly we’ve been asked to implement gas-electric power generation in a direct-drive configuration,” said Matt McRoberts. “So the GD70 is gas-direct as opposed to gas-electric.” The system has a dry weight of 3 kg, and the engine can produce up to 4.5 kW, with the generator typically producing 500 W of auxiliary power, or up to 1000 W depending on the cooling capabilities of the power management unit (PMU). “We’ve also worked on the fuel injection of this engine to make it more efficient, broadly by integrating it more closely within the physical engine unit than what you’d see in most conventional two-stroke approaches,” McRoberts added. “Part of that comes from our design that condenses far more electronics into the physical engine than usual to get more sensor data, which the power management system leverages to generate power and time the fuel injection more efficiently. “That also allowed us to reduce the amount of wiring between the electronics and the PMU, which goes towards significantly lowering maintenance costs and improving long- term reliability, as wiring harnesses tend to be a notable source of failures on UAV engines.” The GD70 is tested to STANAG 4703 and IP67. Interfacing for starting, throttle, diagnostics and all other comms can be conducted through PWM, serial or CAN connections. Crystal Group displayed its newest offering for rugged unmanned vehicle computer enclosures. Its Force 1U, 2U and 3U servers are designed with a modular system of bays to enable customisation for UAV engineers’ specific processing requirements. “Our Force servers can be designed with architectural templates that best suit the operational environment and performance requirements, such as air or liquid cooling, and dust filters,” said Toni Hogan. “With multiple bays of flexible size, end-users can select whatever components they want to integrate, such as an eight-port switch or multiple drive options. “Each Force unit also comes with a ‘sanitise’ function, for when any and all mission-critical information needs to be wiped from the drives in a matter of minutes. We developed that feature at the request of the US Department of Defense, as an additional security factor on a current military program.” The servers come in depths of 19, 22 or 25 in, and in variants up to three racks in height, powered by single or dual Intel Xeon processors. June/July 2019 | Unmanned Systems Technology Pegasus Aeronautics’ GD70 range extender The Force 3U rugged server enclosure from Crystal Group