Le Canard enchaîné Free Man") which was forced to close by government censorship and reacted upon its reopening by changing its name to "L'homme enchaîné" ("The Chained-up Man"); "Le Canard enchaîné" means "The chained-up duck", but "canard" (duck) is also French slang for "newspaper"; it was also a reference to French journals published by soldiers during World War I. The weekly was founded in 1915 by and his wife , along with H. P. Gassier. It changed its title briefly after World War I to "Le Canard Déchaîné" ("The duck unbound", or "out of control"), to celebrate the end of military censorship of
Canard (aeronautics) forward of the wing. The vortices generated by a delta-shaped foreplane flow back past the main wing and interact with its own vortices. Because these are critical for lift, a badly-placed foreplane can cause severe problems. By bringing the foreplane close to the wing and just above it in a close-coupled arrangement, the interactions can be made beneficial, actually helping to solve other problems too. For example, at high angles of attack (and therefore typically at low speeds) the canard surface directs airflow downward over the wing, reducing turbulence which results in reduced drag and increased lift. Typically the foreplane