NOTATION 



c Blade-section chord length 



2 



C = (p-p^)/(pV /2) Pressure coefficient 



D Propeller Diameter 



f Meanline shape function 



g Gravitational acceleration 



^i'^ '-^•' Unit base vectors in a cylindrical polar reference system 



Total rake: axial displacement of blade-section midchord 

 point from y-z plane 



^i'i'^) Unit base vectors in a Cartesian reference frame 

 ^T 



J = V/nD Advance coefficient 



2 5 



K^ = Q/(pn D ) Torque coefficient 



2 4 



IC^ = T/(pn D ) Thrust coefficient 



n Propeller rotational speed, revolutions per unit time 



P Pitch of blade section 



p Pressure 



p Ambient pressure 



Q Torque absorbed by blades, or strength of discrete line 

 source per unit length 



q Distributed source strength 



R Propeller radius 



r Radial coordinate 



_r Position vector of field point 



T Thrust produced by blades 



t Thickness shape function 



