Too complicated, too much to break, too much added weight, complexity and cost.
Ships are designed to ride on the ragged edge of strength-to-weight as it is.
Putting that much weight that far forward is just asking for the ship to hog.
In the smaller ships I worked on in the shipyard, it was a sonar dome,
with hundreds of transducers. It was water filled when the ship was in
the water, & was pressure tested in drydock. It was mostly made of
rubber. Of course, this could be something completely different.
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