cavity volume & area

MP218 (SEIUN-MARU CP)

 theta      area     volume    t_max   t_avr
 [deg]     [mm^2]    [mm^3]    [mm]    [mm]
  350       665.6    1025.9    4.86    1.54
    0       680.6    1653.5    6.38    2.43	
   10      1234.3    2969.3    7.33    2.41
   20       817.0    1135.8    4.40    1.39
   30       728.1    1028.5    3.58    1.41

MP220 (SEIUN-MARU HSP)

 theta      area     volume    t_max   t_avr
 [deg]     [mm^2]    [mm^3]    [mm]    [mm]
    0       351.4     411.4    4.01    1.17
   10       409.2     610.2    5.10    1.49
   20       613.3    1321.7    7.25    2.16
   30       618.6    1731.5    8.23    2.80
   40       618.9    1527.1    9.54    2.47
   50       339.0     730.3    5.83    2.15

"Measurement of Shape of Cavity on a Model Propeller Blade"
 Tatsuro Kudo, Yoshitaka Ukon, Yuzo Kurobe, Hidetake Tanibayashi
 Fig.15 & Fig.16
(Journal of the Society of Naval Architects of Japan Vol.166)