AM.II.G.K2

From the FAA library

• Pilot's Handbook of Aeronautical Knowledgep. 7-30
  Chapter 7: Aircraft Systems › Heating System › Bleed Air Heating Systems

  combustion chamber, the higher-pressure air outside the chamber would travel into the chamber and out the exhaust. Bleed Air Heating Systems Bleed air heating systems are used ... turbine-engine aircraft. Extremely hot compressor bleed air is ducted into a chamber where it is mixed with ambient or re-circulated air to cool the air to a useable temperature. The air mixture is then ducted into the cabin…

• Aviation Maintenance Technician Handbook - Airframep. 16-57
  Chapter 16: Cabin Environmental Control Systems › Aircraft Heaters › Bleed Air Systems

  bleed air with cold air produced by the air cycle machine expansion turbine to obtain warm air for the cabin. This is discussed in the section that covers air cycle air conditioning in this chapter. Aircraft not equipped with air ... shutoff valves, and other various control valves are controlled by switches in the flight deck. One STC’d bleed air heat system uses mini-ejectors in helicopter cabins to combine bleed air with cabin air. All of these bleed air…

• Helicopter Flying Handbookp. 4-19
  Chapter 4: Helicopter Components, Sections, and Systems › Environmental Systems

  heated by the exhaust manifold but is not exhaust gas. Turbine helicopters use a bleed air system for heat. Bleed air is hot, compressed, discharge air from the engine compressor ... air is ducted from the compressor to the bleed air heater assembly where it is combined with ambient air through and induction port mounted to the fuselage. The amount of heat delivered to the helicopter cabin is regulated…