Félix du Temple patented the designs for his aerial machine in 1857, which incorporated a retractable wheel landing gear, a propeller, a 6 hp engine and a dihedral wing design, under the title "Locomotion aérienne par imitation du vol des oiseaux" ("Aerial locomotion by imitation of the flight of birds").
In 1857, Félix du Temple patented his aerial contraption, which included a mechanism for smooth takeoff and landing, a rotating propeller, a 6 horsepower engine, and a wing design that mimicked the flight patterns of birds, as described in the title "Aerial locomotion by bird-like flight".