RADAR REFLECTOR 



18 Ft. BAMBOO POLE 



I/.- ■ POLYPROPYLENE LINE 



1 Ft. SPREADER BAR 



CHAIN WEIGHT (20-40 lbs) 



FiGi'KE 16. Schematic diagram of the parachute drogues used durins the 1971 post-season cruise based on a de- 

 sign by Voli^niann et al. (1950). 



27 



