TWO AT A TIME — Newport Ship Yard, Inc. in Newport, R.I., recently made a double lift with its 3,000-ton drydock when the Raytheon research vessel Sub Sig II (white hull) and the U.S. Navy tug Keokuk (YTB-771) were in the yard for maintenance and repair work. Vessels displace 280 and 350 tons, respectively. Sub Sig II is based at Newport, the Keokuk at Portsmouth, N.H. Newport Ship's railway drydock has side transfer capability up to 500 tons.