 It has a launch weight of 6 kilograms (13.2 pounds).It was originally named "Skylark" but Rafael decided to change the name to avoid confusion with the Elbit Skylark.ZALA 421-08 developed by A-Level Aerosystems, Izhevsk, Russia is a flying wing UAV featuring a weight of 1.7 kg and a wing span of mere 0.8 m. The payload consists of color forward-looking and side-looking cameras.