Is the 737 900, 800 and 700 basically the same but longer versions? No, the NGS and MAX are pretty different aircraft. The the MAX is different in composition, engines, wings, cockpit, and more, but it still has the classic shape of the 737.

No, they are different generations of the same aircraft family. The 737-800 and 737-900 belong to the "Next Generation" (NG) series, which was the third generation of the 737 produced from the late 1990s until 2019. The 737 MAX (specifically the MAX 8 and MAX 9) is the fourth generation, designed to replace the NG. The most significant differences are the engines and aerodynamics. The MAX uses much larger, quieter, and 14–20% more fuel-efficient CFM LEAP-1B engines, which sit higher and further forward on the wing. Visually, you can tell them apart by the winglets: the NG usually has a single upward-pointing "Blended Winglet," while the MAX features a distinct "split-tip" winglet that points both up and down. Inside, the MAX features a more modern flight deck with large glass displays similar to the 787 Dreamliner. While they look similar to the casual observer, the MAX is a significantly different machine under the hood.

No, the Boeing 737-800, 737-900, and 737 MAX are not the same. They are distinct models within the Boeing 737 family, each with different features and specifications.

Key Differences:

1. 737-800 and 737-900 (NG Series): - These are part of the Next Generation (NG) series of the Boeing 737 family. - The 737-800 is a mid-size aircraft, typically seating around 160-189 passengers, depending on configuration. - The 737-900 is a stretched version of the 737-800, offering more seating capacity (up to around 180-220 passengers) and longer range. - Both models were introduced in the late 1990s and early 2000s and feature CFM56 engines.

2. 737 MAX Series: - The 737 MAX is the latest generation of the Boeing 737 family, introduced in 2017. - It includes models such as the 737 MAX 7, 737 MAX 8, 737 MAX 9, and 737 MAX 10. - The MAX series features more fuel-efficient CFM LEAP-1B engines, advanced aerodynamics, and updated avionics compared to the NG series. - The 737 MAX 8 is comparable in size to the 737-800, while the 737 MAX 9 is similar to the 737-900. - The MAX series has been in the spotlight due to safety concerns and grounding following two fatal crashes in 2018 and 2019, though it has since been recertified after software and system updates.

Summary:

The 737-800 and 737-900 are older models from the NG series, while the 737 MAX is a newer, more advanced generation with improved efficiency and technology. They are not the same, though the MAX series was designed to be a successor to the NG series.