SS Pacific Tracker (Naval auxiliary vehicle) passes the Columbia River Maritime Museum on its way to Portland

The SS Pacific Tracker launched in 1965 as the break-bulk freighter, SS Mormacdraco. She’s 202.90 meters (665 feet, 8 inches) long, and 22.86 meters (75 feet) wide.  In 2009 she was converted to X-Band Transportable Radar Ship at Cascade General Shipyards in Portland and renamed the SS Pacific Tracker.