Various gliders in flight at the International Experimental Congress of Motorless airplanes in Clermont Ferrand, France.

Gliders in flight at the International Experimental Congress of Motorless airplanes at Mount Combegrasse, near Clermont Ferrand in France. Men stand near a parked monoplane glider. A light biplane glider pilot stands in a slot in the lower wing. He holds the weight of the front of the aircraft and runs for take off. A group of people gathered around a biplane glider. A glider with wings and tail modeled after a bird and supported on three carriage wheels being pushed by men. The biplane glider being pushed over a hill by men. The glider in flight. It lands. A light biplane glider pilot in the lower wing starts to take off by running. The biplane glider takes off and in flight. A high winged monoplane glider being assisted for take off by men and the glider in flight. A light monoplane being towed by a half track vehicle. The pilot seats himself under the wing of the glider. Pilot E.T. Allen seated in an aircraft as civilians stand near by. Gliders take off from a hill top and land at the bottom of the hill. An American monoplane glider being towed by a half track vehicle. An American biplane glider takes off from the hill top. It takes off, in flight and lands at the bottom of the hill.