SCALES 

 2:1 3:1 



0„ 



D,a 



'.: 



■/' X : ' 



D* 



(ML* *'• 



'■■ 7"-»-.„ •' ''-■/ 



■■••■■•/ 



SCALES 

 4:1 5:1 



% 



i 



• 



...:■:■■ 



♦■• 



gta '■" 



X •■■ 





.••■'" y ,.•''•.. ■■ 



; 



\v 



?■■!. .• ?' — ^.......<L...~-V-*""V '*■ .•■■" 



'■•■. /'"■■, 



i i \ \ 



. , R ..„ 



... :' 



"; '". ..■'*•. :■:' 





Q, 



ye 





* ■■■' 



■ ■' 'VO^ ' ''""■ 



\x \ .• .• -r-K>>; 



•70 



43 -60 



-55 



-45 



180 





il'" illiiilni I I ll I I I I I I I I I I . i " I , I, ,,, In, ,1, ,,,!,, J I I I I I I I I I 



8 a a s s a s s a s 8 § 8 S 

 . I . . . .ii...l....i...,l Ii,,,i„„l i [i 1 1 1 1 1 i I i i I 1 1 1 il 



LOGARITHMIC SCALE 



Givan sny too corresponding quantities, solve 

 for Surd try laying nils through points on prop- 

 er scales end read intersection on third scale. 



MANEUVERING BOARD 



Price 60 cerrts^er pad of 5D) 



TIME In minutes 



8 s 8s? SR »SSi§Sl § l/lSSlSiifli 1 § § §8I§1 1 I 



8 8 S S §§885 *?§iS g i/2. S2SSsII-s8 s saaeaal 8 8 distance m yaros 



I i I i I ' I | | | I I ' 1 < I ■ 1 1 i ■! ' | I / ' l'l'|i |'i 'l'|ll' l ' hl" ll| l | I | l |l| i |l|l| l | l | Relative or aOual 



-«h... 9 = g USSSSS E 8 DISTANCE In miles 



.-. o> r. . /« e i» 8S8SSS8 

 J 1 1 1 — I I 1 I I I I I l/l I il I I I,„.i„„l„„i„„l 



Washington. DC. published M*y. 1920. at Hydropaphic Office. 



under the wthoritv ot the SECRETARY OF THE NAVY New PuStatJcn: 4th. Ed, Apr, 1938 eth. Bditioc, April 1938 



FIGURE 24. 



SPEED In knots 

 Relative ot actual 



Ho. 2065 



