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The passenger's comfort aboard an aircraft is provided by several features such as cabin size, seats design, noise level and mainly air quality.

From where does this air comes from ?
How it is set to the required characteristics ?

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The main process is :

These tasks are carried out by the AIRCRAFT AIR SYSTEMS which are described in the next following pages:

TASKS bleed the air cool the air distribute the air pressure regulation
tasks order 1 2 3 4
SYSTEM NAME engine bleed air system air cooling system distribution and zone temperature control system cabin pressure control system

Air systems example for a twin engine aircraft :

 

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THIS SITE INCLUDES ALSO :

A  DESCRIPTION OF SOME OTHER PNEUMATIC SYSTEMS REQUIRED FOR THE PROPER BEHAVIOUR OF AN AIRCRAFT :

 

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MAIN SITE NAVIGATION :

bleed air system / air cooling system / zone temperature control system / cabin pressure control system