kabinnyomást

Cabin pressure refers to the regulated air pressure inside the passenger compartment of an aircraft. It is essential for maintaining a comfortable and safe environment for crew and passengers when flying at high altitudes. At cruise altitudes, the atmospheric pressure can drop to levels that would cause hypoxia and other health issues if the cabin were simply at ambient pressure.

The pressure system typically keeps cabin pressure at a level equivalent to an altitude between 6,000 and 8,000 feet. This is achieved by a combination of the aircraft’s pressurization system, which draws air from the engines or an external source, compresses it, and then regulates it with a bleed valve and chamber. During ascent, the system gradually increases cabin pressure, while during descent it decreases it in a controlled manner to avoid rapid changes that can harm passengers or compromise structural integrity.

Cabin pressure is monitored by sensors located in the aircraft’s pressure control system. Modern aircraft use sophisticated computer controls to adjust the bleed valve opening based on preset pressure setpoints. In emergencies, such as a loss of hydraulic pressure or a rapid decompression, the system automatically initiates a rapid descent to an altitude where the cabin pressure can be maintained safely.

Cabin pressure management is governed by aviation regulations that specify maximum rate of pressure change and minimum cabin altitude. Compliance with these regulations ensures that aircraft can safely operate at cruise altitudes while protecting the health and comfort of all individuals aboard.