Charlie Morgan wrote:
....
Not a container expert but the reefers are far better sealed than the non
reefers. All containers have a pretty good seal but I wouldn't call it
"waterproof".
As for floating...... depends on what's inside..... load of lead, sink like
a rock..... load of packing peanuts in hermetically sealed bags, float
forever.
reefers also have foot thick foam walls, great floation.

Joe


Do the math, Joe. a foot thick foam lining is not going to float a
flooded container.


Do the math? How can I resist???

Lets see: 40 feet by 8 by 8.5,
lets call that 40x(7+7+7.5+7.5) + 2x(6+6.5) cubic feet of foam

or 1160+78 = 1238
at 62.5 lbs/cu feet that's about 77,000 pounds of water displaced.

The rating (maximum gross weight) of a 40 footer is 67,200 pounds, so
it would appear that a foot of foam all around would provide
sufficient flotation.

Good instincts there, Bill.