Pescara helicopter. There are two 6.40 meter six-bladed propellers rotating in opposite directions around same vertical axis. Motor is 60-hp. Hispano-Suiza.
Testing of helicopters
Sur les resultats des essais recents d'un helicoptere
Academie des Sciences -- Comptes Rendus des Seances ; 172 , n 14
1921
4 pages
1 Fig.
Aufsatz (Zeitschrift)
Französisch
© Metadata Copyright Elsevier B. V. All rights reserved.
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