LIST OF ILLUSTRATIONS 



Pag-: 



Figure 1- A Ship of the Mariner Class 2 



Figure 2 — Body Plan of Mariner-Type Ship 3 



Figure 3 — Plan Views of Antipitching Fins 1 and 2 4 



Figure 4 — Views of Antipitching Fin 4 5 



Figure 5 — Antipitching Fins 6 



Figure 6 — Three Model Installations of Antipitching Fins 7 



Figure 7 — Installation of Instruments 9 



Figure 8 — Experimental Pitch Amplitudes As a Function of Wave Height 12 



Figure 9 — Experimental Heave Amplitudes As a Function of Wave Height 13 



Figure 10 — Experimental Phase Relationship Between Heave and Pitch 14 



Figure 11 — Computed Location of Point of Minimum Vertical Motion 14 



Figure 12 — Computed Amplitude of Vertical Motion Along Length of Ship 15 



Figure 13 — Computed Amplitude of Vertical Acceleration Along Length of Ship 19 



Figure 14 — Experimental Average Bending Moments Experienced in Waves by 



Fin No. 1, 7 Feet off Centerline 24 



Figure 15 — Comparative Performance of Various Fin Configurations Tested 25 



Figure 16 — Dimensionless Pitch Amplitudes 26 



Figure 17 — Dimensionless Heave Amplitudes 26 



Figure 18 - Phase Lag of Heave Referred to Pitch 27 



LIST OF TABLES 



Table 1 — Principal Characteristics of Mariner-Type Ship and TMB Model 4414 1 



Table 2 - Schedule of Tests - Speed 10 



Table 3 - Schedule of Tests - Wave Size 11 



Table 4 — Comparison of Pitch Amplitudes 23 



