SCALES 

 4:1 5:1 



r^76r-95 



' V 



s e y! < ........... 



;: — *lj:tj i .ti-i.i-iJU — ; ;-,<-■ 



lniili.nl. m,I I, I I I I 1 I I I I I ,,l ,,,,1 1 1 I I I I I I I I 



LOGARITHMIC SCALE 



Given any two corresponding qucrrbh'es, solve 

 for third by laying rule through points on prop- 

 er scales and read intersection on third scale. 



MANEUVERING BOARD L 



Price 60 cents (p«r pad of 5D) 



s 1 § § 



H ' I ' - I ' I- 



TIME in minutes 



88888§?§§§1 § 1 l§l§l§§l§i§/^§ § §§§§! || 



I 1 1 I [I' H 'I' H ' I I l'|l |'l 'l'l' M l >M l | 'lll| ' I ■ I I I 'I' h l'l ' I I I Relative or acfcial 



-^.e. a E s 8 55-393 r g DISTANCE in miles 



o h. flo c* S 



3 a 



SPEED In knots 



-I 1 1 I :1_J I I I I I I I I I \A/f I . ,,, l,,., I I„„l„„l,„,l,..,l Relative or actual 



Weshinston. DC. puttiihed Mey, 1920. •! Hyd.cgraphlc Office. 



under (he cuthonty of the SECRETARY OF THE NAVY Ht« Pubicaffcn: *h. Etf, Aef. 1933 4A K-tton. ApriU938 No. 2685 « 



FIGURE 28. 



53 



