What does Airframe & Systems cover?
Aircraft General Knowledge — Airframe & Systems explains how a transport aircraft is constructed and how its systems work: structures, hydraulics, landing gear, electrics, pneumatics, and the powerplant. It rewards genuine understanding of how each system fails and how the design protects against it.
What this subject covers
- Airframe structures, loads and materials
- Hydraulic systems and landing gear
- Electrical systems (AC/DC, generation, distribution)
- Pneumatics, pressurisation and air conditioning
- Powerplant: piston and gas turbine engines
- Fuel, ice & rain protection, fire protection
- Oxygen systems and emergency equipment
Study tip
Don't just memorise — understand each system's failure modes; many questions test what happens when a component fails, not just how it works normally.
How MyATPS helps you pass Airframe & Systems
MyATPS turns Airframe & Systems into focused practice: thousands of questions organised by the official EASA learning objectives, with a research-based explanation on every question so you understand why each answer is right. Track your weak areas, retry what you miss, and build real exam confidence — starting on the free plan, no credit card required.
Practise by topic
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Frequently asked questions
What does ATPL subject 021 cover?
It covers the aircraft's physical systems — structures, hydraulics, electrics, pneumatics, pressurisation, powerplant and protection systems. It is one of the larger subjects by question count.
Is Airframe & Systems a memory subject?
Partly, but it is best learned by understanding. If you understand why a system is designed a certain way, the failure and limitation questions become intuitive instead of pure recall.
How many practice questions are there?
It is among the largest banks because the syllabus is broad. Work through it system by system rather than at random.
