SCALES 

 2:1 3.1 



38—1 57 



34- 



2- 3 



B- 27- 



^tfl 



&, 



r»-.. 



fi I ? 



SCALES 

 4:1 5:1 



s asas s'xS s a s 8 



[ I l,,„i„„i„„i,,„i i l 1 1 1 in 



3 8 



I ii 1 1 1 



TIME in minutes 



. a 8 I 8 8 8888!i!i!il I ! I llllllllll IIIIIIII If m ^ m „«s 



/I I 1 1 1 | i | . | l | | | | I 'I'I'I' N ' M l l|l H 'l '' l' M l | ' H ' l" ii| l I 'I' h l' i ' M l | ' | RttatSvorartu^ 



Giwn any t»o conrnpondint qmnftbes, sol« - « » » »»r.»»B ■ g msiSSSa s S DISTANCE in mite 



for third by laying rule through points on prop- 

 er scales and read interaction on third seals. 



MANEUVERING BOARD L 



Price 60 cents (per pid of 5D) 



I I I I I I I I I 1 I 1 I I I I .... I ■ ... I I.......Ml.n,.„J„..l„Ml 



SPEED in knots 

 Relative or Ktual 



WnMrvton. DC, puMiihsd May, 1920. al Hydrograph*: Office, 

 under tha autJwritr o( Ihe SECRETARf Of THE NAW 



New PubBcxUoir. *lh. Ed, Apr, 1938 4th. Edilrai, Apr!) 1938 



FIGURE 33. 



65 



