File:Comparason Evolution des mats 1919 1930.JPG

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Français : Le premier mât du rotor coaxial présenté (à gauche) est celui de l'hélicoptère Pescara 2R. Il comprend des pièces en fonderie d'aluminium. Le deuxième mât du rotor coaxial (à droite) est celui du 4S, qui comprend des pièces chaudronnées.
Date Photos de l'album de famille Pateras-Pescara 1921-1929.
Source Christian de Pescara, montage de deux photos d'archives personnelles
Author Unknown authorUnknown author

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current15:41, 13 December 2009Thumbnail for version as of 15:41, 13 December 20091,617 × 1,155 (458 KB)CPPC~commonswiki (talk | contribs){{Information |Description={{fr|1=Le premier mat du rotor coaxial présenté est celui de l'hélicoptére Pescara 2R; Il comprend des pièces en fonderie d'aluminium Le deuxiéme mat du rotor coaxial est celui du 4S, il comprend des piéces chaudronnées.

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