BOAT HULL DESIGN 



2-63 



TABLE 2-10. SHELL LONGITUDINALS 



Shell below Longitudinal No. 4 Forward of Station 7 has 4 plies of woven roving. 



Shell Forward of Station 7 from Longitudinal No. 4 to deck edge has 3 plies of 

 woven roving. 



Shell elsewhere has 2 plies of woven roving. 



Shell Longitudinal No. 2 - Supporting Cabin Flooring: Bulkhead No. 2 to Bulkhead No. 3. 



L = 77 in., s = 12 in., h = 5.9 ft., p = 5.9 x 12 x — = 31.ii7 lbs. -in. 



litli 



M = Ei- = 15.770 in. -lbs, 

 12 



(2.21) 



LEG 



Required, Z = ^ = 3.99 in. 3 (2.22) 

 15,800 



As an approximation, assume half-round 

 stiffener with 2. = h; Z = 3.99 in. 3 

 2 



From Fig. 6-39 D = 6 in., h = 3 in., 

 8 plies woven roving 



Minimum leg Ii in. 



Fig. 2-30. Longitudinal No. 2 



Assume difference between Z of half-round and Z of angle is provided by support 

 of the angle by the cabin deck. 



