Formula showing that it is always detrimental to run propeller in slip stream of another unless other attendant gains more than compensate for necessary loss in efficiency thereby incurred.
Note on the efficiency of tandem propellers
Aviation
Aviation ; 7 , n 8
1919
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1939
|SLUB | 1937
|NTRS | 1941
|Contrarotating and Tandem CLT Propellers
British Library Conference Proceedings | 1994
|