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Images: At 50, Alvin Gets an Extreme Makeover

Alvin's old sphere (left) had only one forward-looking viewport for the pilot, and so scientists looking out the port and starboard viewports could not simultaneously see what the pilots was looking at. The new sphere has three forward-looking viewports, with overlapping field of views for pilots and scientists. (Matthew G. Barton/Woods Hole Oceanographic Institution)
Piece by piece, engineers and technicians such as Vic Miller designed, fabricated, and assembled the new Alvin. (Tom Kleindinst/Woods Hole Oceanographic Institution)
A portion of the more than 100 WHOI engineers, technicians, pilots, scientists, administrators, and others, who mustered to build the new Alvin. (Tom Kleindinst/Woods Hole Oceanographic Institution)
WHOI engineers, including (from left) Anthony Tarantino, Bob McCabe, and Rod Catanach, devoted years to building the new sub. (Tom Kleindinst/Woods Hole Oceanographic Institution)
Susan Humphris was the WHOI scientist in charge of the Alvin upgrade project. (Tom Kleindinst/Woods Hole Oceanographic Institution)
"This new Alvin has about 70 percent new components," said Pat Hickey, Alvin pilot and former head of the Alvin Operations Group at WHOI. "We bascially redesigned and rebuil the entire sub." (Tom Kleindinst/Woods Hole Oceanographic Institution)
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