12 



x -Reynolds number, E = 6.54 x 10 Tovlng speed U = 0.50 knot 



Laminar Oscillations 



E = 18.3 x 10 5 



1.40 



Figure 8 - Oscillograms of Oscillations in the Laminar Boundary Layer 

 at 7.75 Ft from Bow and 1 Ft Above the Keel of Tanker Model 408} 



had to be removed, the model taken out of the water, the stimulator changed 

 and the reballasted model again connected to the dynamometer for the succeed- 

 ing test . A uniform waiting period between runs was adhered to which provided 

 a lapse of 15 minutes between the starts of successive runs. In all these 

 tests an effort was made to conform to present practices for conducting resist- 

 ance tests at the Taylor Model Basin. 



