46 APPLICATION OF BUOYANCY BOXES TO THE STEAMSHIP 



Buoyancy and Stability Calculations for S. S. Lucia. 



BUOYANCY calculations. 



Estimate of Weights and Displacements. 



; ' Tons. 



Weight of coal on board 310 



Ballast water on board 400 



Weight of ship 4,100 



4,810 

 Draught of ship, 12' o". 

 Displacement with assumed block coefficient of 0.65 : — 



10 X 0.65 X 54 X 400 o 

 ^ — -^ — - — = 4,813 tons. 



35 ^ 



Weights. 



Tom. 



Weight of coal 8,200 



Coal consumed 600 



7,600 



Weight of ship 4,100 



Weight of boxing 1,000 



Weight of frame filling 250 



Weight of dunnage for cargo boxing 90 



13,040 



Displacements. 



Tons. 



Coal displacement (specific gravity 1.35) 5>630 



Displacement of fittings of hull 400 



Steel and machine displacement 520 



Double bottom and peaks 1,600 



Propeller tunnel 300 



Side boxing, 150 lbs. per foot run 7,860 x 150 lbs. 



Bilge boxing, 200 lbs. per foot run 808 x 200 lbs. 



Deck boxing, 150 lbs. per foot run 4,060 x 150 lbs. 



Deck boxing, 150 lbs. per foot run 4,060 x 150 lbs. 



Deck boxing, 200 lbs. per foot run 4,060 x 200 lbs. 



Bulkhead boxing, 200 lbs. per foot run 5.270 x 200 lbs. 



1,970 



Boxing in machine and engine room 150 



Boxing for cargo 3'000 



Frame filling 45° 



Dunnage for cargo boxing 160 



14,180 



