The HMS Nemesis was 56 meters long and 29 meters wide. She sailed for the China coast in 1839 carrying two guns that fired 32-pound rounds and four that fired six-pound rounds, plus a launcher for rockets and torpedoes. She could operate by either sail or steam, and her shallow draft meant that she could move as effectively on inland rivers as she could in open ocean. Her hull was protected by iron and designed with watertight compartments to keep the ship afloat even if the outer hull was breached. She was a devastating weapon of war.
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