Reading Time: < 1 minute A prototype of Piaggio Aero’s P.1HH Hammerhead unmanned air vehicle crashed into the sea near Sicily during a test flight on 31 May. The P180 Avanti II twin-pusher-derived prototype – registration CPX621 – was operating from Vincenzo Florio airport in Trapani, Sicily. It is believed to have lost communication with its ground control station, after […]