The construction of the Type 075 amphibious assault ship in my country is very fast. In less than three years, two have been launched, and the island of the third ship is already in place. The launch is imminent. The reason why this can be achieved is to use mature and reliable power. Is the key.
075 Recent photo of the third ship
The Type 075 amphibious assault ship uses a 16PC2-6B diesel engine, which is a medium-speed engine with 600 rpm. Its single power is 12,000 kilowatts, which is approximately 16,300 horsepower, which is much higher than the 054A frigate 16PA6V -280STC diesel engine with a single engine power of 5700 kilowatts. And 075 used 8 units! The total power exceeds 130,000 horsepower. Such strong power makes the 075's top speed exceed 25 knots, which is at least 46 kilometers per hour. The 901 large integrated supply ship is also at this speed, which can be seen as the "lower limit" accompanying the aircraft carrier.
075
in the sea trial Many people will ask, why 075 does not use the "backward" diesel engine instead of the QC280 gas turbine that has become the standard configuration of the destroyer?
After all, QC280 is an imitation and improvement of GUT25000. It is not designed independently by my country. The power configuration and transmission structure of a 40,000-ton ship is very different from that of a destroyer. The QC280 requires a substantial improvement in adaptability. QC280 trial installation 052C has gone through a long process until it is basically mature. Moreover, gas turbines have poor low-speed performance and high fuel consumption. The Burke-class destroyers with gas turbines in the United States have a maximum endurance of 4,400 nautical miles with a displacement of more than 9,000 tons, which is equivalent to frigates in many countries. The 075 is at an economic speed of 18 knots. The endurance is not less than 8000 nautical miles.
Although 16PC2-6B is not independently developed by my country, it is a product that a domestic factory has completely digested and absorbed Piersick’s technology and greatly improved. my country’s marine diesel engine technology is far more mature than gas turbines, and even Russian ships have to be imported from my country. diesel engine. The 16PC2-6B diesel engine has high reliability and can burn inferior heavy oil, and the application of damping floating rafts and even active noise reduction technology has greatly improved the quiet performance of the diesel engine. Even the 054A with anti-submarine warfare as its main function uses diesel engines. Power is the proof. Since economical and practical diesel engines can meet the demand, why use the immature and fuel-consuming QC280! The
054A frigate overturns the understanding that diesel engine power is not suitable for anti-submarine
More importantly, my country's 903 and 901 supply ships and the 071 landing ship also use this series of marine diesel engines. After using four 16PC2-6MPC diesel engines with a single power of 8800 kilowatts, the speed of the 071 type dock landing ship reached 25 knots. The diesel power of auxiliary ships has formed a mature and reliable production, use and maintenance mechanism.
The Type 071 Dock Landing Ship, which has been built in large quantities, also uses diesel engines.
Therefore, it is inevitable that 075 diesel engines are used. Perhaps after my country’s self-developed gas turbine integrated power is fully practical, it may be applied on subsequent ships of 075. Diesel engine is still the best choice for 075.
