SCALES 

 2:1 3:1 



-10 



•jaP, 



'^P/Oe^/ 



mi 





: ^ : : 



SCALES 

 4:1 5:1 



' 



% 





D S 



A/.C- 



~.s; . v~* 



/'' ?v. 



A/«? 



■ . ■'•.'' 



-no^ 





s s 



8 S3 S 



I I,,,,!,,,,!" I",,,,!,,,!, I' I I I I I III I I„,,|..„l 1 1 I I I I I III I .,.,1 ImmNmiIiiXhI 1 I I 1 I I I I I 1 I I 1 I I I 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 conta {per pad of 50) 



TIME in minutes 



s a s s ssissiiliii 1 1 lllllllllll I lib/ 



_| 1, | l | i | l | | | I ll'l ' l ' l ' l ' l ' I ' I ' l'l' l ' l 'l'l' l' l'l 'l 'l ""l ' I ' I ' l ' / ' l ' l 'l ' I ' I Relative or actual 



« » « ■> »r.«» 2 a S3, a RRSSR K g DISTANCE in miles 



5 . «, « ^ a » S S SSSSfSS 



I I I I l I l I l I I ■ I I I I I I I I I,,„l,„/„„l„„l„„l„„l 



SPEED in loiots 

 Relative or actual 



Washington. C. published Hay. 1920, at Hydtographic Office, 

 under the authority of the SECRCTARY OF THE NAVY 



FIGURE 32. 



NwFTjbfeatton;4th.Ed,Apr, 1938 4th. Edjtica, April 1938 



No. 2865 a 



63 



