Figure 13 — Residual Drag Coefficients 

 for Models 1 through 9 





0.6 





1 



1 







^°3 











WIRE L 















> 



k /L • 100 















• BARE ^ 









f/y^ 









o o.6i 



mm WIRE 



1 













A 0.61 



mm WIRE 



3 







///* 







0.5 













111 





































/A / 



















'J 



















?i£ 



















fir 







0.4 



A 











i 





o 





• 



• 







// 







o 



0.3 



• D 



A 



D 





X 











+ 0.03 < 



1 1 „ 





a/ A 











1 



A 



A 













• 

















n 



* 



• • »^ 





D 











-0.03 



• 



A 













0.2 



□ 



D 

 A 



• 



A 



D 

 D 







C p = 0.667 







0.1 





1 



I 







P E 

 L E /D =0.500 



1 





2 

 R L - 10" 7 



Figure 13a — Model 1 



31 



