The bulk carrier that broke up in a storm on the Black Sea was designed for use on rivers not the open sea !Black smoke happen when you give full throttle on diesel engines. the Turbochargers need time to increase speed to give enough air to the engines.The Chinese use their "fishing boats" as the first leg of their South China Sea domination plan. The other boat, is actually a Philippines Coast Guard ship in Philippine territorial waters defending against illegal Chinese fishing. Get it right.