What is one type of narrow body aircraft?

The B737 is considered a narrow body aircraft due to its smaller fuselage diameter compared to wide body aircraft. Narrow body aircraft typically have single aisles, allowing them to accommodate fewer passengers, generally ranging from about 85 to 215 seats. The Boeing 737, for example, is known for its efficiency in short to medium-haul routes and is one of the most popular commercial aircraft used by airlines around the world.

In contrast, the other aircraft listed, such as the A350, B757, and A330, are categorized as wide body aircraft. Wide body planes feature larger fuselages with multiple aisles, allowing for significantly higher passenger capacities, which makes them suitable for long-haul flights. The distinction between narrow and wide body aircraft is important in aviation operations as it affects everything from passenger handling to cargo capacity and airport gate assignments.