The highly economical cargo freighter S.S. YamaShiro maru, 12,000 tons was launched at the Mitsubishi?
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Background: The highly economical cargo freighter S.S. YamaShiro maru, 12,000 tons was launched at the Mitsubishi Shipyard at Nagasaki last November by order of the NYK line ( Nippon Yusen Kaisha ), one of the largest marinetime company in Japan. The strong point of this type of boat is the engine is 13,000 horse powers though they can make a speed of 22.45 knots in average which was considered to be impossible among the shipmakers in the world. Usually, the shipmakers figure out that the boat which can make a speed over 20 knots an hour must equipped with engine more than 18,000 horse powers. According to the data published by the Mitsubishi Shipyard is the maximum speed is 22.45 kn in case of loading 20 per cents cargo to the gross tonnage. 46 people are loaded covering 4 passengers, 17 deck man, 14 engine room men and 12 business line people. The NYK line announced that this type of boat is the Super Extra Speed liner to be used for long ocean trip and will be run between Japan and European ports. The special feature of this boat is block coefficient 0.56 and equipped with round ball on the box of the boat which can speed up.