Plexiglass windows at the sides of the test section permitted visual observation and 

 photographic coverage of the hydrofoil models. During model testing, the test sec- 

 tion velocity was measured by a single pitot-static tube mounted in 2-D test section 

 just upstream and below the model. Figure 5 shows a schematic of the model and the 

 semiclosed jet test section in the 24-in. VPWT. 



ELEVATION VIEW 



ELEVATION SECTION A-A 

 LOOKING INTO TUNNEL FLOW 



Figure 5 - Schematic of 24-Inch Variable Pressure Water Tunnel 

 Arrangement Showing Semiclosed Jet Test 

 Section and Model 



