Why are the seats on the plane so crowded, and who designed it in the first place?
One little-known and slightly harsh fact is that the vast majority of our low-cost economy class passengers are not the airline's main source of revenue. "Squeezing" has two aspects, one is width and the other is front and back. Since the most luxurious carriages are comfortable and spacious enough, there is no comparability, so the article is mainly compared with the most ordinary cabins.
Let's start with the width. The seat width of a train depends mainly on the width of the train, while the width of the train is the pitch and the distance between the track lines. Among them, the gauge mainly affects stability, but in the case of wide is not too outrageous, the impact is not large. The main impact is the spacing between the two tracks. The seat width of an aircraft has almost nothing to do with the airline, and except for a few wide-body aircraft, which the airline can choose to add or subtract one row, the seat width of the other aircraft is determined by the aircraft manufacturer. For example, almost all of the economy classes of the B737 and A320 in the world are 3-3 layouts, and even crazy AirAsia and Ryanair cannot be changed to 7 rows of seats.
For example, the B737 series aircraft, which has been in the project since 1964, has not widened the width of the fuselage. There is no possibility of a gradual increase in the comfort of the aircraft. At the same time, the B737 adopts the same body width design and body section as the B707, which means that this is a width design from the 1950s. So it is clear that the width of the train has been increasing, and the width of the plane cannot be increased, which leads to the same width itself, and the train slowly increases the width in the development and operation.
Whether it is an airplane or a train, it can be changed relatively freely, so this is mainly for the sake of the airline's revenue. It is true that the airspace distance between intercontinental flights ≥ international flights ≥ domestic flights ≥ low-cost flights.
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