Mechanical wings

On the banks of the Loire River in France, there is the "Château d'Amboise" built by Francis I. Nearby is the "Château du Clos Lucé" where Leonardo da Vinci spent his last years. Among them, a model that reproduces the invention that remains in Leonardo's manuscript in full size is exhibited, and what I drew in this work is "flying machine". It is unrealistic to move with his human power, but he was impressed by the unconventional idea and tried to paint his heart.