MY fifth CHINA Southern livery plane!

The Boeing 737 series aircraft is a medium-short-range twin-engine passenger jet produced by the Boeing Company of the United States. It has been sold well for 50 years since its development and has become one of the most successful narrow-body civil aviation passenger aircraft series in the history of civil aviation. 14 models have been developed.
Boeing 737 is mainly aimed at the needs of medium and short distance routes, and has the characteristics of reliability, simplicity, and economic operation and maintenance costs, but it is not suitable for long-distance flights. According to the project start time and technology advancement, it is divided into traditional 737, improved 737, new generation 737 and 737 MAX. The original members of the first generation are 737-100 and 737-200. The second generation member Classic is Boeing 737-300, 737-400 and 737-500, and the third generation member NextGeneration is Boeing 737-600737-700, 737-800 and 737-900. The fourth generation member MAX is Boeing 737 MAX7, 737 MAX8, 737 MAX9 and 737 MAX10. The 737 MAX, Airbus A320neo and MS-21 are known as the most advanced single-channel trunk airliners at present. The Boeing 737 is the best-selling passenger aircraft in the history of civil aviation (as of 2018). It has produced more than 10000 aircraft since 1967, and there are still more than 5000 orders waiting to be delivered. The main production line is the Boeing Lenton plant in Washington State. Many airlines order 737 to replace the old Boeing 707/727, DC-9 and MD-80/MD-90. The main competitor is Airbus A320
original plane credit by @GalacticaAsia