Submerged Two-Dimensional Bodies 



n. 



oo o 



aaosal 



X-Y RECORDER STRAIN 

 GAUGE 

 BRIDGE 



"V" 



OO 



oo 

 oo 



CAPACITANCE 

 BRIDGE 



X-Y RECORDER 



Fig. 9 - Instrumentation for measuring the horizontal 

 drag force and the free- surface elevation 



Fig. 10 - Test section of a foil with strain gages 



611 



