F,,; (POUNDS) 
V= 6.52 KNOTS 
n = 10.21 REV/SEC 
| 
x orx 
; 
fe 
x 
i Soon x x 
Ox ‘o 
be 
x 
xP xO 
| 
o MEAN VALUE 
x MEAN VALUE + 1.96 STANDARD DEVIATIONS (AT A 
GIVEN POSITION ANGLE STATISTICALLY 95 PERCENT 
OF THE MEASURED POINTS LIE IN THE BAND BETWEEN 
THE 2 X-SYMBOLS) 
45 90 135 180 225 270 315 
POSITION ANGLE @ (DEGREES) 
Figure 8 — Experimental Data Showing Plus and Minus Two 
Standard Deviations on Measured Values of Ee 
63 
360 
