10 



(8 



max 



b=BEAM 



R/b 



o 20 (CONCAVE) 

 d 38.3 (CONCAVE) 



^> co (FLAT PLATE) 



20 (CONVEX) 



SOTTORF 



FLAT PLATE, 

 WEINSTEIN AND 

 KAPRYAN 



2 4 6 



LENGTH-BEAM RATIO, Z/b 



Figure 72. Effects of longitudinal curvature on planing efficiency. 



-2r 



t.e. c, 



z-Z 



\ 



\ 



TRIM, r 



— _ I2 C 



_ 8° 



8r 



J L 



2 1.6 4 



CLEARANCE, z/b 



.8 1.2 1.6 



Figure 13. Effects of shooting water, constant load, speed, and beam, — X C/, = K« 



b 



196 



