Mandrakes drone's unique whine signals its multi-purpose capabilities

At the 55th Paris Air Show, Czech startup FlyinDiamonds showcased its innovative "Mandrakes" drones—small, glowing quadcopters named for their distinctive high-pitched whine upon landing, which aids operators in locating them in difficult terrains. Designed and manufactured entirely in the Czech Republic, these drones feature a 270 mm propeller diameter, 25-minute flight time, 450 g weight, and can withstand winds up to 7 m/s. They are powered by a 3600mAh Li-Ion 4S battery and support connectivity via Wi-Fi, micro USB, and UART interfaces, including a light show controller. Originally focused on entertainment through light shows, FlyinDiamonds has expanded into industrial uses such as millimeter-precision 3D scanning for construction and facade cleaning. FlyinDiamonds is also exploring emergency medical applications, aiming to use drones to deliver critical supplies like defibrillators and medication, potentially reducing response times in urgent situations.