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 80 cents (per pad of 50) 



8 8 S 8 SBBSSBBSSSi g I 8 8888§ §8»f 8 8 g gfggg gg 



-f 1 1 i I i I'M I I I 1 1 1 ■ I » I'l'l i I i I'li l i H ' H ' WfH 'I'i Ml i [ . I > I . I ' hl ' J ' I i I wSSSirlSS 



•-■ ..g n 8 8SSSS R 8 DISTANCE In miles 



<M m f 10 <0 r~ co 01 S 



J I I '1 



S 8 8 8? S3 



1 I I ' ' ■ I ' ' ■ r I i i ii I n ulii nliiiiliiiilii.il 



SPEED Irt knots 

 Relative or actual 



Washington. DC. published May. 1920. at Hydrofiraphic Office, 

 under the ixrthority of the SECRETARY OF THE NAVY 



New PuoBcation; 4th. Ed.. Apr, 1938 



k Edition, April 1938 



No. 2665 a 



FIGURE 19. 



35 



