1. ** Boeing 737-200**: This is the second generation model of the 737 series, which made its first flight in 1969. Compared with the original 737-100, it is about 5.08 meters longer at the tail of the fuselage and enlarged the cargo door. This model also uses Pratt & Whitney JT8D engine and was delivered in 1971.
2. ** Traditional model and new generation of Boeing 737 * *: Traditional model 737 includes early models such as 737-200, while next generation (NG) includes Boeing 737-600/700/800/900. The new generation 737 is an improved version of the second generation 737 (such as 737-300/400/500), of which 737-800 is one of the most successful models and widely used in domestic and international routes.
3. ** Boeing 737-800**: As a member of the new generation 737 series, Boeing 737-800 is one of the main models in the civil aviation market in China and even in the world. It is mainly used to fly domestic routes and international short-haul routes. From 1998 to 2020, Boeing delivered more than 5,000 737-800 aircraft to global aviation customers.
To sum up, Boeing 737-200 is an early model of Boeing 737 series, and then with the development of technology, Boeing introduced more advanced models of 737 aircraft to meet the needs of different airlines. Each generation of Boeing 737 aircraft represented a certain level of aviation technology at that time and played an important role in the civil aviation market.
