Transactions Society Naval Archilecls and Marine Engineers, Vol. 19, 1911. 
To illustrate paper on “ Experiments on the froude,” 
by Professor C. H. Peabody, Member of Council. 
Plate 38. 
N PER CENT 
SCALE FOR EFFICIEN 
WASHINGTON , D.C. 
DIAM] = 26:4 
PITCH = 29°C 
pa 
Nore: Curve’& 7” ano @ REPRESENT 
THE AVERAGE RESULTS OF 
INOEPERULENT CURVES: 
APRIL 18,1910. 
ATFOR OTHRUST 4-1313'7/ 
1d 
SCALE FOR SLIP-4- IN PER CENT 
I 
Se oe ghar 2 Ca en ae 
oo 
THE NORF 
—+— 
Fig. 4, 
= PETERS C2), WASHINGTON, D.C 
SCAL= FOR TORQUE-Q@-|N POUND FEET ANDO THRUST ~—Z-IN POUNDS | 
