I UNIT 



YLTH CONVERT 



A 



• 



• 



L4— 





• 



• 



^ 



1 II 21 28 31 41 51 





100 FORMAT (2 F 10.0, A 7, 3 X, 2 F 10.0) 





L 



4— = LEFT 



JUSTIFIED 



• =FLOATING POINT REQUIRED 







R 

 D 



lUNITS 

 YLTH 



CONVERT 



X axis scaling factor, nautical miles per inch 



y axis scaling factor, meters or fathoms per inch 



label for y axis (x axis is always in nautical miles) 



the total height of the y axis plot that will be displayed, the 



maximum is 10 inches. This usually set as a multiple of D. 



Example: when plotting at 500 fathoms/ inch, to be able to 



display a profile that goes down to a depth of 4500 fathoms, 



YLTH would equal 9 inches. If not correctly set or if plot 



exceeds 13 feet on the x axis, that profile is omitted from 



plotting. However, the cards are still punched. 



the data base is uncorrected for speed of sound in sea water. 



For fathoms the assumed standard is 800 fathoms per second, for 



meters it is 1500 meters per second. To convert from fathoms 



to meters CONVERT = 1 .8750, from meters to fathoms CONVERT 



0.533 — 3, If no conversion needed CONVERT = blank or 0.0. 



FIGURE 17. SYNPLOT CONTROL CARD 



31 



