The Solution F-Chrétien helicopter, displayed at the Musée de l'Air et de l'Espace in Le Bourget, is the world's first manned, free-flying all-electric helicopter. Designed by French engineer Pascal Chrétien with Solution F, it achieved its pioneering flight in August 2011, hovering for over two minutes on battery power alone. Featuring a lightweight coaxial rotor system and lithium-ion polymer batteries, it demonstrated the practical feasibility of electric propulsion in rotorcraft.