Washington, DC published MAY. 1920, at Hydrogrephic Office, 

 under Die authority ol the SECRETARY OF THE NAVY 



<th td. Apr.. 1938 AOi. Editi-.r,, April 1938 



No. 2665. 



SCALES 

 2:1 3:1 



" aS5 TTT^ I I I I J I I I pTr 1 " 



Jo 



&, 



>$> 



I Division -4 Miles 

 I Division - 2 Knots 



*•••'• 



'.v'iMz \ 



\ .%< 



\ ..*" / ..V •• : : ■••..•.. 



>:. «■■-,.■•,* •. '■■ .* - ; .-••">• 



"■-. />■' '. ;..-,—-KJ~-...; 



,.*: 



#* : 



r* .. 



.■■ / 



Is- 





(V? 



SCALES 

 4:1 5:1 



76 [—95 



RELATIVE PLOT/ / "•$$■ 



■•■■'■ • / /c? J '•■•-../ "■■■■./,'•■ 



>X 



.-J&i 



■ /# • 



■V 



■■/•■ 



■*.—■ /•:•*■■"■/*— nr 



»W : 



// /• 

 ./ / ; 



lxxIi 1 1 17, 1 1 1 Llu 



180 



■no' 



-7S 



-70 



-15 



- 



-5 



, iq •) r, o, « _ m ro »"""«i 10 1. a <» s « 8 RSSSSSSSSSS "g § 



■ ' ' ■ IiiiiIiiiiI iIihiIimiIiiiiIiiiiI I I I I I I I I 1 1 I 1,,, I,,,, I, ,„!,,,, I, ,,,!,, ,,!„,, I„„l I I I I I I I I , , , , i , , , , I,,,, !,,,,! I„„l,,„l„„l„„l I I I I I I I I lj.\ l_l_J J-l I I 



LOGARITHMIC SCALE 



Given any two corresponding quantities, solve 

 for third by laying rule through points on prop- 

 er scales and read intersection on third scale. 



MANEUVERING BOARD 



Price 60 cents (per pad of 50) 



-> 1 1 I i I i I i| I I I I H i l ' H ' l i I i I i|i|i | ' [ ' i i|i|i|i|i|i| 



J i I i I i 1 i I 



DISTANCE in yards 

 | I | Relative or actual 



SPEED in knots 

 Relative, or actual 



Wnhington. DC. published Key, 1920, el Hydrognphic Office, 

 under tho authority ot the SECRETARY OF THE NAVY 



FIGURE 29. 



N~ MWcaitlCT; 4th. LU, An, 1938 



4th. EdiUoo, April 1938 



No. 2665 » 



503046° — 44- 



57 



