Gerritsma and Beukelman 



Table 5 



Damping Cross- Coupling Coefficients for the 



Sections and the Whole Model 



kg sec 



Fn = 0.15 



The distribution of the damping cross -coupling coefficient e varies with 

 speed and frequency as shown in Fig. 10. From Fig. 9 it can be seen that the 

 added mass cross -coupling coefficient depends very little on speed. For higher 

 frequencies the influence of frequency is small. 



As a check on the accuracy of the measurements the sum of the results for 

 the sections were compared with the results for the whole model. The following 

 relations were analysed: 



236 



