Transactions Society Naval Architects and Marine Engineers, Vol. 28, 1920. Plate 74 
To illusivate paper on “The Problem of the Hull and Its Screw Propeller,” 
by Rear Admiral C. W. Dyson, U. S. N., Member. 
SHEET NO.19 
VESSELS OF CONDITION | 
MEAN REFERRED TIP CLEARANCES FOR 
WING SCREWS = Beton WHERE 
1,(WING SCREWS)=(ACTUAL MINIMUM 
TIP CLEARANCE X10)=ACTUAL HEIGHT 
OF CENTER OF HUB ABOVE BASE 
LINE 
H(EPTH oF tIMERSION OF UPPER 
ALADE TIP)=(ACTUAL IMMERSION 
IN FEET I4)-ACTUAL HEIGHT 
Of TIP ABOVE BASE LINE 
SCALE OF MEAN T.C, 
avs 
a 
DN YY 
i Wi 
DY 
1 
R LOCATION 
DIAGRAM OF PROPELLE: 
SCALE CF SLIP K BC. 
2 2 4 oo 6 ; K: 2 
Za WM J ROGERS ''THO. WASH 9 C 
