IL.II.N.K1
KnowledgeFundamental concepts of aircraft pressurization system, including failure modes.
From the FAA library
- Chapter 7: Aircraft Systems › Pressurized Aircraft
addition, the pressurization system permits a reasonably fast exchange of air from the inside to the outside of the cabin. This is necessary to eliminate odors and to remove stale air. [Figure 7-41] Pressurization of the aircraft cabin ... necessary in order to protect occupants against hypoxia. Within a pressurized cabin, occupants can be transported comfortably and safely for long periods of time, particularly if the cabin altitude is maintained at 8,000 feet or below, where…
- Chapter 8: Flight Instruments › Impact Pressure Chamber and Lines
Impact Pressure Chamber and Lines The pitot tube is utilized to measure the total combined pressures that are present when an aircraft moves through the air. Static pressure, also known as ambient pressure, is always present whether an aircraft ... moving or at rest. It is simply the barometric pressure in the local area. Dynamic pressure is present only when an aircraft is in motion; therefore, it can be thought of as a pressure due to motion. Wind also generates…
- Chapter 7. Safety of Flight › Section 2. Barometric Altimeter Errors and Setting Procedures › 7-2-2. Barometric Pressure Altimeter Errors
Section 2. Barometric Altimeter Errors and Setting Procedures Procedures 7-2-1. General a. Aircraft altimeters are subject to the following errors and weather factors: 1. Instrument error. 2. Position error from aircraft static pressure systems. 3. Nonstandard atmospheric pressure ... some altimeter instrument errors, and errors caused by altimeter settings derived from different geographical sources. 7-2-2. Barometric Pressure Altimeter Errors a. High Barometric Pressure: Cold, dry air masses may produce barometric pressures in excess of 31.00 “Hg. Many…
- Chapter 16: Cabin Environmental Control Systems › Control of Cabin Pressure › Pressurization Modes
mixed with the bleed air outflow from the turbine and is sent to the pressure vessel. Turboprop aircraft often use this device, known as a turbocompressor. [Figure 16-49] The most common method of pressurizing turbine-powered aircraft is with ... cycle air conditioning and pressurization system. Bleed air is used, and through an elaborate system including heat exchangers, a compressor, and an expansion turbine, cabin pressurization and the temperature of the pressurizing air are precisely controlled. This air cycle system…