Plate 9 
Transactions Society Naval Architects and Marine Engineers, Vol. 30, 1922. 
” by Elmer A. Sperry, E. D., Member. 
To illustrate discussion by Robert H. Rogers, Esq., Visitor, on paper entitled “Automatic 
Steering, 
Sais 
a 
AL 
chee 
t——-}-—-- 
