SCALES 

 2:1 3:1 



SCALES 

 4:1 5: 



Given any two corresponding quantities, solve 

 fcr third by laying rule through points on prop- 

 er scales and read intersection on tnird scale. 



MANEUVERING BOARD I 



Price 60 cents (per pad of 50) 



Sea Si JHTgggSi § 8 DISTANCE In yards 



H 1 I l I ■ I l| I I I ll' H ' l ' H i | l I i|i|i | i | i , |i|i|i|i|i|i| u. i <P I ' 1 ' M 'I' H ' I l I Relative or actual 



= 8 R 8SS53 R 8 OISTANCE in mites 



j I i i ' I i i i i i n.,. 



HMrinabn, DC. ftuWi^sd Ms* 1910, ot Hyting&tic Office. 



2 S S R S S S3 

 I ' LLxLmJ LuiLuiliuiWJ 



SPEED In knots 

 Relative or actual 



undti tw» auUtwH? ot tbl SECRETAHY OF THE NAVY 



FIGURE 4. 



Ne» PuNlcClerc 48i Ed. Afr. I 



4th. Edition, April 1933 



No. 2€55 ■ 



5 



