







































A 



1000 



— 

















Figure lOa 















^ 



/ 

































,-Qr\ 



^ 







1 knot 







oat 



















OS— 







^ 

































1 



2000 









































A 



















Figure lOb 















/ 



/ 







































^ 



y 





































^ 







2 knots 





























^ 



^ 



IS' 

















-r>=Ql 



IX3»a 



O-o 



>-^ 



-fil- 









^ 



-— ' 



























1 











































6 





















Figure lOc 

















/ 









































/ 



/ 



2000 





































/ 



/ 





































y 



t/ 



3 knots 

































^ 



^ 





































^ 



^ 





































qr^ 



^" 























.0=:5 



^ 



H 



>-tftj 



^»- 



-^ 



— ^ 



■tr^ 



























4000 











































/ 





















Figure lOd 















A 



/ 







































/ 



/ 









































/ 



4 knots 



2000 



































/ 





































/ 



/ 







































^ 



y 







































^' 







o 1 in. 

 a'/2in. 

 A 1/4 in. 



1 

























J, ^ 



^ 





dt" 



















rr^ 



A^w 



0-c< 



O-c* 



-«JA- 



— 



-^ 





































c 



J 









l( 



3 









1 



5 









20 



oo in rad/sec 



Figure 10 - Plots of W^/Sg versus Frequency at Various Speeds 



14 



