E Meanline ordinate of blade section 

 c 



E Half-thickness ordinate of blade section 



F Factor for estimating local equivalent two-dimensional 

 angles of attack, l/(l+2irtan ($ -3)/C T )) 



f._ Camber of section 



M 



f „ Camber required to produce specified lift coefficient at 

 ideal angle of attack in two-dimensional flow 



G Nondimensional circulation, T/itDV 



g Acceleration due to gravity 



H Hydrostatic head at local position (absolute) 



h Hydrostatic head at local position minus vapor head 



I Record number, I = 1 to 75 



i. Blade Rake 

 G 



J Advance coefficient, V/nD 



in-J* area fl / 9 "* n \ 



2 

 L Local effective lift per unit area, (1/2) p V„ C 



2 5 

 K n Propeller torque coefficient, K /(pn D ) 



2 4 

 IL, Propeller thrust coefficient, IC,/(pn D ) 



k Camber correction factor, f.,/f wo _ 

 c M M2D 



N Gage number, N = 1 to 40 



n Propeller revolutions per unit time 



p Total pressure at local position on blade 



P Propeller section pitch 



P n Delivered power at propeller, 2irnQ 



ix 



