Has anyone seen any pictures of these tests?

This seemed to happen awfully quickly. Usually it takes years and
lots of manpower and money to prepare a ship and remove all the
contaminants, asbestos, etc.

The decision to sink the America was taken a couple of years ago. According
to the planning that was made public, all the environment issues have been
addressed since then. It would be very odd if you came across pictures of
the actual sinking. It was a full exercise to evaluate the amount of real
punishment, from a number of strikes, that a big CV can take and function /
survive. Guess top secret would be the minimum clearance needed to see
those.
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José Herculano