TABLE 2 



Summary of Irregular Wave Data for NRL Platform (FORDS) 



Run 



Displacement Sea 







Average Values (Peak- 



to- Peak) 



No. 



Condition State 





Heading 



Pitch 

 deg 



Roll 

 deg 



Heave 

 ft 



18 



1 4^ 





Head 



1.72 







2.50 



21 







Beam 







3.34. 



4.09 



24 



6^ 





Head 



4.47 



0,50 



4.56 



27 







Beam 



..-_ 



6.30 



6.08 



73 



2 





Head 



3.31 



0.60 



5.02 



75 







Beam 







5.57 



5.05 



77 







Oblique 



2.19 



4.30 



3.66 



79 



4 





Head 



2.19 







2,79 



81 







Beam 







3.78 



3.32 



83 







Oblique 



1.34 



2.40 



1.98 



112 



3 6 





Head 



1.27 



.__ 



4.05 



114 







Oblique 



0.89 



1.32 



2,44 



116 







Beam 







1.47 



3.52 



144 



4 6 





Head 



0.90 



---- 



0,51 



146 







Oblique 



0.68 



0.52 



0.35 



148 







Beam 



.__- 



1,12 



0.50 



180 



5 6 





Head 



0.54 



... 



1.27 



181 







Beam 







0.55 



1,68 





Average wave height is 4.4 



ft 



, period of 



maximum enei 



gy is 







approximately 9.1 sec. 















Average wave height is 8,5 



ft 



, period of 



maximum energy is 







approximately 9.4 sec. 















Head of model is 45 deg to 



seaway. 









■6- 



