Moreover, the VTOL UAVs have also been actively utilized for hobby and leisure and are classified into multirotor , coaxial , Coanda , and ducted-fan
This airplane is designed for High-Speed flying with a powerful Brushless Electric Ducted-Fan
. The Fan Unit is very well constructed for High-Performance flying.
In the micro-UAS sector, UTRI makes the VTOL, ducted-fan
Spyball and fixed-wing Crex-B systems.
aircraft use a standard forward-thrust turbojet or turbofan engine that provides forward thrust while in forward flight.
Aurora offers the small 130-pound Goldeneye 80 ducted-fan
UAV and the larger 620-pound Excalibur, which had its first flight at Aberdeen Proving Ground, Md., in June.
One of many ducted-fan
vtol concepts, the Selex Damsel fly follows the well-proven Harrier/Pegasus four-nozzle thrust-vectoring arrangement.
Additionally, the story stated that ducted-fan
hovering UAVs had suffered a string of program failures, but did not clearly explain that the performance problems occurred when the vehicles were first developed a decade ago and have since been resolved.
Honeywell's backpack transportable Class I system, derived from the company's 7.8-kg ducted-fan
Micro Air Vehicle (Mav), weighs 16 kg with two drones.
Urban Aeronautics has started windtunnel testing of a 250kt (465km/h) capable cargo variant of its new 100kt top-speed Mule ducted-fan
unmanned air vehicle.
The BAE Systems second-generation ducted-fan
drone recently flew its maiden untethered flight, twice completing a course comprised of ten waypoints.
DARPA officials foresee that the ducted-fan
MAV may complement conventional fixed-wing UAVs in the future.