MORE VOLTAGE, MORE EFFIECIENCY Capable of operating up to 32V while featuring an advanced magnetic encoder technology with a robust IP-67-rated waterproof design, our MDB961/951/941 servos are engineered to excel in a wide range of high torque to high speed industrial and commercial applications. Perfect for CAN and DroneCAN command protocols, our actuator series delivers maximum performance and more power with fewer amps, allowing for greater energy efficiency with less reliance on regulators. MDB961WP @ 28.0V 0.14 sec/60” 60.0kgf.cm (833.24 oz-in) MDB951WP @28.0V 0.10 sec/60” 38.0kgf.cm (527.72 oz.in) MDB941WP @ 28.0V 0.07 sec/60” (352.7 oz.in) DroneCAN CAN 2.0A/B HiTEC COMMERCIAL SOLUTIONS North American Sales & Support San Diego, CA / www.HitecCS.com SEE THE FUTURE OF HITEC Discover Hitec’s cutting-edge premium servo technologies for unmanned systems. From IP69k-rated submersible, ultra-efficient brushless drone to high redundancy actuators, our precision control lines provide the solutions your most demanding operations require. NEW SERVOS IN 2025 SR SERIES REDUNDANT BD-SERIES BRUSHLESS DRONE SU-SERIES UNDERWATER CASE SIZE 33MM 10 & 20 MM 33MM SPECIAL MAXON BLDC LIGHTWEIGHT BRUSHLESS IP69K RATING DroneCAN CAN 2.0A/B HiTEC COMMERCIAL SOLUTIONS North American Sales & Support SAN Diego, CA / www.HitecCS.com example, at a very deep level so you can execute different parts of a mission with different systems – you have much more freedom if you control the autopilot. The missions for which Tekever is developing the AR3 create a unique engineering challenge. In long-range ISR operations, resilience and endurance are paramount. While most autopilot manufacturers focus on optimising for high-volume, short-range systems like quadcopters, Tekever is faced with delivering capabilities that were traditionally only possible with much larger platforms, which it now achieves through networked Group 2 systems, he explains. This demands an integrated approach. Off-the-shelf solutions aren’t designed for these requirements, so they can’t handle the complexities of distributed missions where a single operator manages multiple aircraft simultaneously. With the operator experience, for example, he stresses that just stitching together disparate interfaces is inadequate. Instead, it is essential to build the entire workflow from the ground up, ensuring seamless control across platforms while simplifying the operator’s task load. That level of optimisation is possible only when the autopilot, GCS and mission logic are co-developed as a unified system. Critical split In selecting the core computer technology on which all of this is based, they split it into the critical and noncritical systems. “The critical systems are everything that flies the aircraft, and they are subject to a lot more regulatory constraints in the sense that you need stability for your safety cases,” he says. “So, all of that needs to be captured and relatively stable in terms of versioning of the hardware and software.” There is, however, a lot more leeway around the non-safety-critical systems, such as those associated with most payloads, for example. “They can improve your performance, but they cannot endanger your flight envelope.” This means that they can, and do, use the latest and greatest hardware. “Every additional piece of compute power you can get for the same input of energy is fundamental because that’s where you’re running all your intense processing for all the payloads, all the fusion engines and everything else that is important from a payload point of view, and it also informs the autopilot and the flight control systems.” Here, it is important to point out that non-critical systems can make requests of the autopilot, which then decides whether it can carry them out safely. The surfaces that control fixed wing flight – ailerons on the wings and ‘ruddervators’ on the V-tail – have redundant servo actuators, continuing the policy implemented on all Tekever UAVs, says Mendes. “We are carrying very expensive payloads, so we need to be fully redundant on everything we can.” @ 28.0V 0.07 sec/60˚ 25.4kgf·cm (352.7 oz·in) @ 28.0V 0.10 sec/60˚ 38.0kgf·cm (527.72 oz·in) @ 28.0V 0.14 sec/60˚ 60.0kgf·cm (833.24 oz·in)
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