Finding the R-8
Finding the R-8 A major upgrade to side-scan sonar helps the crew of Tenacious locate a sunken World War I submarine in Northeast waters Author: Feb 5, 2021 The 186-foot-long R-8 is believed to be the last missing American sub in diveable North Atlantic waters Navsource Joseph St. Amand, sitting across from the helm aboard the 45-foot Tenacious, was the first to see the seafloor change. The images flashed on his sonar monitor for a total of 30, 40, maybe 50 seconds. He couldn’t be sure what they showed, but he knew they looked dramatically different from the previous images. “We’ve go...