2 



HYDROMECHANICS 



AERODYNAMICS 



STRUCTURAL 

 MECHANICS 



STATISTICS ON WAVE HEIGHTS AND PERIODS 

 FOR THE NORTH ATLANTIC OCEAN 



by 



R.L. Brooks, CDR, USN, and N.H. Jasper, Dr. Eng. 



STRUCTURAL MECHANICS LABORATORY 

 RESEARCH AND DEVELOPMENT REPORT 



September 1957 



Report 1091 



PRHC-TMB-648 (11-56) 



