Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Akaflieg is an abbreviation for Akademische Fliegergruppe, an academic group of pilots in pre and postwar Germany. Otto Lilienthal published his book Der Vogelflug als Grundlage der Fliegekunst (Birdflight as the Basis of Aviation) in 1889. This described the basics of modern aerodynamics and aircraft construction. Lilienthal then made many successful flights starting in 1891. However attention then shifted to powered flight after World War I.

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