Transactions Society Naval Architects and Marine Engineers, Vol. 28, 1920 Plate 40 
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To illustrate discussion by Elmer A. Sperry, Esq., on paper entitled “Comparative Tests of 
Bilge Keels and a Gyro-S tabilizer on a Model of the U. S. Aircraft Carrier Langley,” 
by Commander William McEntee, Construction C orps, U. S. N., Member fs 
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