021 Aircraft General Knowledge

EASA code: 021

Aircraft General Knowledge covers airframe structures and materials, hydraulic and landing gear systems, piston and gas turbine powerplants, fuel and electrical systems, pressurisation and air conditioning, ice protection, oxygen, and fire detection.

Chapters

1. Airframe & structures — design philosophies, fuselage, wings, materials, flight controls
2. Hydraulics & landing gear — hydraulic systems, undercarriage, brakes, anti-skid
3. Piston engines — Otto cycle, fuel, carburettor, ignition, lubrication, props, turbocharging
4. Gas turbine engines — turbojet, turbofan, turboprop, compressors, combustion, FADEC
5. Fuel systems — AVGAS, jet fuels, tank types, refuelling, jettison
6. Electrical systems — DC/AC generation, batteries, distribution, protection
7. Pressurisation & ice protection — cabin pressure, air cycle machine, icing, oxygen, fire
8. Key notes — exam revision quick reference