56 55 54 53 52 51 50 49 48 47 46 45 



52 



-52 



T 



51 





Aq /^ 



FLIGHT 26 

 27 APF! 67 



C-y^ 



V 





^ 



-i- 



50 



49 



-48 



-47 



-46 



-45 



\/ 



^C 



AA 



43 



LEGEND 

 A BERG 

 Q GROWllER 

 -»FLIGH 



TRACK 



42 



-44 



-43 



-142 



56 55 54 53 52 51 50 49 48 47 46 45 



44 



Figure 10. — Ice Conditions, 25 and 26 April 1967. 



21 



