Boat Sinking?????

[Winnipesaukee]

ITD,

The poster who was on the boat stated that there was a "catestrophic failure...of the hull," and in a roundabout way blamed the marina/Cobalt Boats. It is unlikely that they hit something, as that would have been mentioned. The bellows theory was a good one as well. That sounds like a good idea as well.

A 1 inch hole is a huge deal. I forget the formula, but a two inch hole a foot below the waterline will take on about 70 gallons of water per minute.

Edit, here we go. I know this isn't the neatest, but it does provide an interesting reference. Source oceanmarineservices.com.

   Flooding Rates of Various Size Holes At Differing Depths 



 Figures Are In Gallons Per Minute (GPM)

Hole



Diameter

	6"       1'      1' 6"      2'       3' Below Waterline

1/8" 	.17 	.30 	.31 	.35 	.43

1/4" 	.88 	1.20 	1.53 	1.80 	2.20

3/8" 	1.94 	2.70 	3.40 	3.90 	4.80

1/2" 	3.46 	4.90 	6.00 	6.90 	18.50

3/4" 	7.77 	11.00 	13.50 	15.60 	19.10

1" 	13.96 	19.60 	24.20 	27.80 	34.0

2" 	55.49 	78.60 	96.10 	111.10 	136.10

4" 	222.10 	314.30 	378.70 	444.50 	544.40

6" 	499.60 	707.20 	865.30 	1000.20 	1225.00