1. There will be a round button on the left or right armrest of the airplane seat. Press it to lean back, and the backrest can be adjusted backwards 15 degrees.

Airlines usually have mechanically unlocked seats in economy class and business class, supported by connecting rods. Some first-class seats in the plane are driven by electric motors. However, when adjusting the seat, pay attention to whether the passengers behind drink water or their diet is affected.

Extended data:

The first requirement of aviation seats is firmness and safety, and then it is to give passengers a comfortable ride experience. For safety reasons, aircraft seats will undergo a very strict anti-collision test before installation, and their durability and crashworthiness are excellent.

When an airplane takes off or decelerates in an emergency, the seat should bear the inertia force of passengers. Therefore, the strength of the seat must be able to withstand a huge impact to ensure that the passenger's body is not hurt.