^raiisaclions Snricly Naval Architects and Marine Engineers, Vol. 20, jgi2. 



Plate Qj 



To illustrate paper on "Active Type of Stabilizing Gyro,' 

 by Elmer A. Sperry, Esq., Member. 



Figuf-e No SO 

 Gyroscopic S^sbiliz^f/on 



Figura No. 2.1 

 Gyroscopic Rolling of ■Ship 

 Dying - Down Record 

 Sfil/ Water 



Figure /Va 22 

 Ssme impressed forces ss 'in 

 figure no. 21. 



Sfeaminff sf 15 knofs. 



