1900 - 1910 Theory Relevant to Helicopter Development

1900, Drzewiecky, developed a hybrid momentum/blade element concept.

1904, Joukowski, paper "On the Useful Load Lifted by a Helicopter."

1906, Joukowski, "About Connected Vortices".

1907, Joukowski, paper on "A Multi-Bladed Propeller-Screw".

1909, Drzewiecky, book "Des Helices Aeriennes Theorie Generale des Propulseurs."

1909, Joukowski, "Experiments on the Theoretical Determination of the Effect of the Airflow on the Surface of a Propeller."

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