It off course depends on how large the crew, accessories, etc. are when you put a 3940 to the water.
When buying my very 1st 3940 more then 10 years ago, I put it to the test in the bathtub with the 2 guns and 4 pirates that came with it, and gunhatches closed of course. It went just fine, and I think this is what it was designed for.
When you add more guns ans sailors, treasure-chests, etc. the ship becomes too heavy and some water gets through the gunports, and it may capsize.
I remember when I was a kid I put 3050s equipped with each about 15 pirates, 2 extra guns and some accessories into the tub and they also got water in (through the cabin-windows)...and sunk.
The (probably) sealed-off gunhatches on the 5135 (new 3940-variant) will be an improvement for kids' play in the water.
But most of us here are adult collectors, aren't we? I guess the majority of us don't play with our ships in the tub.
So I hope the 5135' sealed-off hatches with fake guns will be removable (and re-installable), to equip it with the "real" guns like on the 3940. Then everybody will be happy.
