Principle involved in design of Mallet helicoplane is explained; two lifting screws turn in plane perpendicular to vertical plane; stability of plane is assured by vertical planes, one of which is placed in front of lifting propellers; plane can wing over by degrees not only in aerobatics but in shooting; results of studies made by Mallet of helicopter briefly outlined.
Mallet-Levavasseur Helicoplane
L'Helicoplan Mallet-Levavasseur
Air ; 11 , n 236
1929
1 Fig.
Aufsatz (Zeitschrift)
Französisch
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