He was the submarine's senior Diving Officer.

"Eight zero feet, sir," the Diving Officer called from a seat behind the airplane-style controls of the ship control panel.

Captain," the Diving Officer said, "we can't get down at this speed with the vents stuck.

"Diving Officer," Turner called, "submerge the ship to one five zero feet."

"Speed zero, depth seven nine feet," the Diving Officer announced.

The scope was up before the Diving Officer was able to get the ship back to periscope depth.

The deck began to incline as the ship drove deep, then flattened as the Diving Officer pulled out.

Pacino turned to the ship control console and the Diving Officer.

Diving Officer, blow depth control number two empty and don't let us broach if that's too much buoyancy.

Diving Officer, make your depth five hundred feet.