3.5 r 



3.0 



q 2.5 



2.0 



1.5 



1.0 



0.5 



Laboratory tests on plates 2" x6" 



Field tests on 19-inch plate 



Field test on 19-inch plate with 

 keying flaps 



Field test on 12-inch wye fluke 

 (similar to Smith's 1967) 



Note: Keying distance was measured from 

 the bottom tip of the fluke. 



0.1 0.2 0.3 0.4 



Ratio of Arm Length to Fluke Length 



0.5 



Figure 5. Non-dimensional plot of fluke length versus keying 

 distance in sand. 



19 



