Brief illustrated description of engine SNCM Sterna having two adjacently located propellers turning in opposite directions; placing propellers at distance from engine permits locating latter in center of gravity of airplane; thrust of propellers is taken on thrust bearings and propellers are held concentric by thrust and roller bearings.
Double propeller drive
Automotive Industries
Automotive Industries ; 81 , n 6 ; p 279
1939
Article (Journal)
English
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