.@RoyalNavy returns to BlackSea for the first time since the Sea of Azov crisis: Devonport based, Echo class multirole hydrographic & oceanographic survey vessel @HMS_Echo transited Bosphorus. The survey suit consists of EM710MBES, EA600 single beam echo-sounder, towed side sonar pic.twitter.com/0ASjn1Neck

— Yörük Işık (@YorukIsik) December 17, 2018