Veteran Deep-Water Sub Alvin To Get Face-Lift

A deep-diving submersible named Alvin made one final trip to the ocean floor this week, before being hauled ashore for an extensive, 18-month makeover.

This is proving to be a time of nostalgia and anticipation for the people who have tended the famous sub, lovingly, for many years.

Alvin is in essence a 6-foot-diameter titanium sphere, armed with a battery pack, propellers, a few small windows and life support for the three people who squeeze into it. It carries an armament of cameras, lights and grappling arms.

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