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4 Responses to “Boat Insurance – Peace of mind for your marine adventures.”
Steel has a density of 7.88 g/cm^3
You didn't specify shape, so for ease of calculation I'll use rectangular.
(7.88 g/cm^3)(2 mm)(1 ft/304.8 mm)[(1')(13') + (2)(13' + 1')h) < (1 g/cm^3)(13')(1')h
0.67218 + 1.4478h < 13h
11.552h > 0.67218 ft.
h > 0.058186 ft
h > 0.69823 in., the minimum draft of the empty boat. Covering the top with 2 mm steel increases this to
11.552h > 1.3444 ft.
h > 0.11637 ft.
h > 1.3965 in.
July 1st, 2011 at 1:02 pm
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July 14th, 2011 at 9:12 pm
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August 9th, 2011 at 11:35 pm
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August 22nd, 2011 at 5:01 am
Steel has a density of 7.88 g/cm^3
You didn't specify shape, so for ease of calculation I'll use rectangular.
(7.88 g/cm^3)(2 mm)(1 ft/304.8 mm)[(1')(13') + (2)(13' + 1')h) < (1 g/cm^3)(13')(1')h
0.67218 + 1.4478h < 13h
11.552h > 0.67218 ft.
h > 0.058186 ft
h > 0.69823 in., the minimum draft of the empty boat. Covering the top with 2 mm steel increases this to
11.552h > 1.3444 ft.
h > 0.11637 ft.
h > 1.3965 in.
Including payload and freeboard,
(7.88 g/cm^3)(2 mm)(1 ft/304.8 mm)[(2)(1')(13') + (2)(13' + 1')(h + f)] + (1 g/cm^3)P/(1 g/cm^3)(453.59237g/lb)(1 in^3/16.387064 cm^3)(1 ft^3/1728 in^3) < (1 g/cm^3)(13')(1')h
(7.88)(2)(1 ft/304.8)[(2)(1)(13) + (2)(13 + 1)(h + f)] + P(453.59237/1728/16.387064)(1 ft/lb) < (13)(1)h
(0.0517060367 ft)[(26 + (28)(h + f)] + 0.0160184634P ft/lb) < 13h
h > 0.00123218949P ft/lb + 0.111366848h + 0.111366848f + 0.1034120734 ft
0.888633152h > 0.00123218949P ft/lb + 0.111366848f + 0.1034120734 ft
h > 0.00138661211*P ft/lb + 0.125323760*f + 0.116372063 ft
where
h = draft in feet
P is payload in pounds
f = freeboard in feet
Changing units to inches,
h > 0.0166393453*P in/lb + 0.125323760*f + 1.39646476 in.
Expressing payload in tons yields
h > 33.2786906*P in/T + 0.125323760*f + 1.39646476 in.