Quick Facts
- Type
- Aircraft System
- Definition
- The process of maintaining air pressure inside an aircraft cabin at a livable...
- Used By
- Pilots, Engineers
Definition#
Cabin pressurization is the active regulation of air pressure inside the aircraft fuselage to maintain a safe, breathable atmosphere during flight at high altitudes. The cabin is maintained at a pressure equivalent to 6,000–8,000 ft altitude while the aircraft may cruise at 35,000–42,000 ft.
Why It Matters Operationally#
Without pressurization, passengers and crew would suffer hypoxia above approximately 10,000 ft. Pressurization requires a sealed fuselage structure capable of withstanding pressure differential loads — a key factor in structural design and maintenance.
Related Guides#
- Cabin Pressurization Explained
- How Jet Engines Work (Turbofan vs Turboprop)
- Why Airplane Windows Are Rounded