WW1..In 1916, the Dorand Avion de Reconnaissance 1, a two-seater reconnaissance plane, replaced the aging fleet of Farman F.40 pushers. The Dorand AR.1 had back-staggered wings but was equipped with a more powerful engine. French observation squadrons began receiving the new biplane in April 1917. It was soon followed by an improved version, the Dorand AR.2. By the end of World War I, as many as 18 French observation squadrons on the Western and Italian fronts were equipped with ARs.