"And the loss of one navigation officer will not make a difference in our return to heaven."

He was sitting at the second console, the one meant for the navigation officer.

Or he could be a navigation officer and advance to his own command.

But no responsible navigation officer would ever think of switching it off.

"We should be at our launch point within seven minutes," the navigation officer replied.

"Activate the system drive," she ordered her female navigation officer.

The second mate is typically the navigation officer aboard a ship.

She was saved from having to invent some polite response by the navigation officer.

"Full thrust to the docking station," she ordered her navigation officer.

Meanwhile, the navigation officer is deleting our course from the ship's computer.