-I I I l_ 



3 2.5 2 1.8 l£ J.* L2 1 0$ 0.A 



OS 



Figure 3. Schematic diagram. Dimensionless pitching amplitude i// OT * = ip m * (X*; F; A), j>* = IT. 



3. Three forms of amplitude ratio diagrams can be derived. 



a. z m * = z w *(A*; F, A), 



i.e., z,„* (or ^,„*) as function of the wave length with F and A as parameters [51] 

 (see Fig. 3), 



b. z m * = z*(A;F, A*). 



Such a complete diagram has been first established by Gawn using experi- 

 mental results [51]. See Fig. 4. 



c. z m * = z M *(F; A, A*). See Fig. 5. 





1.8 



^ US 



1.4 



1.2 



0.8 



ib 



0.2 



0.2 



0.4- 



0.6 



48 



f.O 



1.2 



16 



L8 



213 





Figure 4. Schematic diagram. Dimensionless pitching amplitude yp m * = \fs m * (A; F; X*), v* = IT: 



85 



