Table VI. Drogue speed and true bearing data for 

 drogue #1 (15 meters) and drogue #2 (40 meters) 



Table VIII. Drogue speed and true bearing data for 

 drogue #5 (100 meters) 



* Time interval used for speed and true bearing 

 calculation. 



Table VII. Drogue speed and true bearing data for 

 drogue #4 (15 meters) and drogue #3 (50 meters) 

 DROGUE #4 (15 Meters) 



* Time interval used for speed and true bearing 

 calculation. 



Knauss, and Vine (1956) indicated that "A 

 current which flows at 50 cm/sec to a depth 

 of 100 meters will drag a parachute at 200 

 meters through the water at approximately 

 4.5 cm/sec, assuming no current exists at 200 

 meters." The difference between the average 

 speeds of the three pairs of drogues set are 

 given in Table XI. Although the average data 

 show relatively small differences, the "instan- 

 taneous" values of velocities may differ by 

 more than 40 cm/sec. Because of the small 

 average differences in velocity, no correction 

 has been made to the deep drogue velocities. 

 Table XII presents the mean velocities com- 

 puted using the dynamic heights at different 

 depths. These velocities can be compared with 

 the average drogue speeds. The average speed 

 of each pair of drogues has been plotted as an 

 appropriate slope on a vertical section of dy- 

 namic height anomaly. This is shown in Fig- 

 ures 77 and 78. The position of the drogue 

 determined the stations between which the 

 velocity should be calculated for comparison 

 purposes. 



Drogues 1 and 2 were located between sta- 

 tions 9536 and 9537 or 9542 and 9543. Drogues 

 3 and 4 were located between stations 9537 



21 



