Preflight Pass

Powerplant · Lesson 38 of 40

Turbine Engine Air Systems

Where a turbine engine's air goes: inlet types and what they must deliver, internal and nacelle cooling, seals, insulation blankets, compressor bleed air and how engine inlets are anti-iced.
10 min read

Last reviewed

Part of A&P Complete

This lesson is in the full course

  • Describe what a turbine engine inlet must deliver and compare divided, supersonic, bellmouth, turboprop and turbofan inlets
  • Explain how excess air cools the combustor, turbine and bearings, and how nacelle zones are ventilated
  • Describe the purpose and construction of insulation blankets and shrouds
  • Explain where bleed air comes from, what it is used for and how bleed ducting is inspected
  • Describe how turbofan and turboprop inlets are protected from ice