Norrbin 



Symbol 



Definition 



Physical 

 Dimension 



Remarks 



k!. 



zz 



ra 



n 

 P 



q 



p»q»r 



■"^ome 



s 

 s 

 t 



t 

 u,v,w 



w 

 x,y,z 



Coefficients of accession to 

 inertia 



Corr, factor for rudder inflow 



Corr* factor for rudder inflow 



Non-dim» radius of gyration 



Mass of body 



Number of revs, of prop, in 

 unit time 



Pressure in general 



Stagnation pressure 



Angular velocity connponents 



Max, radius of equivalent body 

 of revolution 



Lateral thrust factor 



Sinkage 



Time 



Thrust deduction factor 



Components of V along body 

 axes 



Wake fraction 



Orthogonal coordinates of a right- 

 handed system of body axes 



Orthogonal coordinates of a right- 

 handed system of space axes 

 (inertia frame) 



M 



ml't"^ 



ML-' T-^ 

 T-' 



L 



LT 



i = 4,5,6 

 CU eq. (7.4) 



l" = 1 



Cf. Section VII 



t" = t/^T/g 



A Weight displacement 



V Volume displacement 



Vq Volume displacement at rest 



A Aspect ratio 



A^ Aspect ratio of rudder 



7f|. Do for rudder + plane wall 

 image 



# Velocity potential 



MLT 

 L3 



-2 



L^T-' 



^ = HLPgVo=mg 



Normal approx, : 

 V =Vo 



A, = bVAr 

 Ar = 2Ar 



*" = */lV^ 



820 



