Sec. 52.8 



FLOW PATTERNS AROUND SHIPS 



253 



Fig. 52.T Lines of Flow of TMB Model 389S, Representing Twin-Skbg Manhattan 



greatly contracted longitudinally, of the flowlines '^b c Tronsom-stern Design ^ tmb Model 4505 Tc^-ogoa 

 under TMB model 3898, representing the twin- ^^' 

 skeg Manhattan design developed by the U. S. 

 Maritime Commission [SNAME, 1947, pp. 112- 

 125]. The projection is made upward on the plane 

 of the designed waterline; all flowlines are shown 

 on the same side of the centerplane. Three 

 photographs are available showing the original 

 lines of flow on the model [SNAME, 1947, Fig. 

 25 on p. 116 and Figs. 26 and 27 on p. 118]. Fig. 52.U Lines of Flow Around Model of 



The transverse spreading of the flow shown by Transom-Stern ABC Ship 



~^Desi(^ned Waterline Projected Upward 

 on Plane Parallel to Boseplane 

 I I I ' i 



Lettered Lines of Flow Are Projected Upward in Similar Fashion 



Contracted Lonqitudinallu 4,57 Times 



7 6 5 4 



Fig. 52.V Fish-Eye View of Lines of Flow Under Bottom of TMB Model 3898 

 The transverse scale here is 4.57 times the longitudinal scale, to permit showing the flowlines to better advantage 



