Propeller Excitation and Response of 230000 TDW Tankers 



FULL SCALE 



44r/m 



59r/m 



68r/m 



78r/m 



85r/m 



O-US 



CAVITATION TUNNEL J =0.437 



26 



19 



12 



CAVITATION TUNNEL J = 0.379 



a- 



36 



25 



16 



02 

 Kp 



model 



— -e- — model, lower J 

 A full scale 



50 



h 



70 90 



Number of revs/min 



Figure 17 Pressure fluctuations and cavitation patterns in model and 

 full scale. "Norse King" (with fins, 6-bladed propeller). 

 Measuring point B. Ballast condition 



635 



