The helicopter itself is 30 tons, leaving you 30. But 60 is the max takeoff weight. The max weight it is actually designed to operate at when carrying the maximum load is about 55 tons. With 30 for the helicopter itself, that leaves 25 tons for the load.
A container can be up to 33 tons loaded, so the heaviest will be beyond that helicopter (at least of you don't want to push it past its safe limits).
I assume that the heaviest containers are on the bottom of the stack, and that most containers aren't near the limit, so it could probably unload a substantial number of them.
A container can be up to 33 tons loaded, so the heaviest will be beyond that helicopter (at least of you don't want to push it past its safe limits).
I assume that the heaviest containers are on the bottom of the stack, and that most containers aren't near the limit, so it could probably unload a substantial number of them.