Fuel tanks have been installed in the Zala 421-20 UAV's 6m-span wing.
Russia's Zala Aero first flew on 5 August its 421-20, a new medium-altitude, long-endurance unmanned air vehicle.
Representing an upgrade to the manufacturer's earlier 421-09 design
and developed over the last two years, the surveillance and
reconnaissance asset has an improved endurance of 6-8h. This increase
has been achieved by installing fuel tanks in the aircraft's 6m
(19.7ft)-span wing, Zala says. Continue reading...