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一、实施背景长江干线船型标准化是一项系统工程,其内外因素的复杂性决定了其实施进展的渐进性。解放后长江船舶工业开始自主发展,科学技术水平逐步提高,各种船型得到长足发展,柴油机船取代蒸汽机船,客货船由东方红系列发展成新型节能双艉船型,推拖船由“长江2039型”经历“1942型”发展到“26004型”“川江3机3桨”型,推进效率与操作性能不断提高,形成了较大规模的经济效益。1981年至2001年为自航船兴起的船型转型
First, the implementation background The standardization of the Yangtze River shipping line is a systematic project, the complexity of its internal and external factors determine the progress of its implementation of gradual. After the liberation of the Yangtze River shipbuilding industry began to develop independently, the scientific and technological level is gradually improved, all kinds of ship types have made considerable development, the diesel engine ship to replace the steam engine ship, passenger and cargo ship developed from the Dongfanghong series into a new type of energy-saving double-bow, push tugboat from the “ ”Experience “ Model 1942 ”Development to “ Model 26004 ”“ Chuanjiang 3 machine 3 paddle ”type, promote the efficiency and operational performance continues to improve, forming a larger scale of economic benefits. Shipbuilding transformation from 1981 to 2001 as a self-propelled ship