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Scientific American, Vol. 100, No. 23 (June 1909) (1909)

leaf 4

An illustration from Scientific American, Vol. 100, No. 23 (June 1909), 1909, leaf 4
eory as to why less space between the lower bered, last fall built a helicopter consisting of a large direction fulfills the r61e of the vertical rudder. This and middle planes can be used than is required be- number of small propellers. In constructing his bi- double movement of the cell is… … SOKE NEW AMERICAN AEROPLANES. Three-quarter rear view of the Bokor triplane. Recent activity by members of the Aeronautic So- ciety has resulted in the production of several new The double V-shaped tall and twinging aviator's seat (which warps the lower plane) are this machines main features,…

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