and 



Savitsky, Roper 3 and Benen 



P = mass density of water = 2 lb-sec /ft 



("cgVio 



deadrise angle at station 5 , degrees 



trim angle of mean buttock line, degrees 



average vertical acceleration at center of gravity "g" 



l/lO highest vertical acceleration at center of gravity 

 "g". From the statistical analysis of Reference 3 , 



^cgVi 







= 3. 3 



CG avg 



The previous coefficients are evaluated for a range of initially assum- 

 ed values of beam : 



The following relations between initially assumed beam, as- 

 sumed length-beam ratio, and speed-length ratio will also prove use- 

 ful : 



Referring to Figures 16, 17, and 18 of Reference 3 , which 

 are reproduced as Figures 1, 2, and 3 of the present report, it is 

 seen that the average value of center-of -gravity acceleration is obtained 



424 



