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ATPL Subject Hub

All 14 ATPL subjects, organised for faster revision.

Use these subject guides to understand what each ATPL paper covers, where students usually lose marks, and which study moves create the fastest improvement.

Practice subjects

14

VFR Communications (091) and IFR Communications (092) stay separate in the app

EASA exam papers

13

Under the current EASA syllabus (the ECQB generation)

Communications

091+092

Examined together as a single Communications paper

KSA

100

Assessed through your ATO, not as a separate examination

010

Air Law

Medium

Air Law is one of the first ATPL subjects many students tackle because it establishes the rulebook for the rest of training. It rewards repetition, careful reading, and precision with categories, privileges, minima, and responsibilities.

Exam focus

Regulation-heavy memory work

  • SERA, flight rules, and airspace classification
  • Licensing, medicals, and privilege limitations
  • ATC services, clearances, and separation responsibilities
Open subject guide

021

Airframe, Systems and Powerplant

Hard

This is one of the largest ATPL subjects and often one of the slowest to revise because it combines multiple aircraft systems into one exam. Success comes from understanding how systems interact rather than memorising isolated component names.

Exam focus

Broad technical systems coverage

  • Hydraulic, pneumatic, fuel, and electrical system logic
  • Turbine and piston engine fundamentals plus protection systems
  • Pressurisation, environmental control, and emergency equipment
Open subject guide

022

Instrumentation

Hard

Instrumentation is less about remembering lists and more about understanding how instruments behave when conditions or inputs change. Error interpretation is a major differentiator between weak and strong scores.

Exam focus

Concept-heavy instrument behaviour

  • Pitot-static instruments and pressure-related errors
  • Gyroscopic behaviour, compass limits, and heading references
  • EFIS, TCAS, GPWS, weather radar, and FMS fundamentals
Open subject guide

031

Mass and Balance

Medium

Mass and Balance is compact compared with the biggest ATPL subjects, but it can still cost marks if your calculation method is untidy. Clean, repeatable working matters more than speed alone.

Exam focus

Calculation-focused with repeated patterns

  • Centre-of-gravity calculations and movement
  • Load and trim sheet interpretation
  • Payload, fuel, and envelope limitation trade-offs
Open subject guide

032

Performance

Hard

Performance combines formulas, charts, operational judgement, and disciplined reading. Students often know the broad concept but still lose marks by misreading chart axes or applying the wrong correction factor.

Exam focus

Chart reading and applied performance calculations

  • Take-off and landing distance corrections
  • Climb gradients, obstacle clearance, and balanced field concepts
  • Atmospheric effects such as temperature, pressure altitude, and runway condition
Open subject guide

033

Flight Planning and Monitoring

Very Hard

Flight Planning and Monitoring is one of the most demanding ATPL subjects because it blends routing, fuel, alternates, regulations, and calculation accuracy in one exam. It rewards disciplined process more than intuition.

Exam focus

High calculation and procedure load

  • ICAO flight plan form and route notation
  • Fuel planning, alternates, contingency, and final reserve logic
  • PNR, PSR, drift, wind correction, and en-route monitoring
Open subject guide

040

Human Performance and Limitations

Medium

Human Performance often looks easier than the technical ATPL subjects, but it still rewards careful revision because the syllabus mixes physiology, psychology, and operational human factors in a single paper.

Exam focus

Conceptual knowledge with memorable patterns

  • Hypoxia, vision, hearing, and vestibular illusions
  • Fatigue, stress, workload, and decision-making
  • CRM, communication, and human-error management
Open subject guide

050

Meteorology

Hard

Meteorology is one of the largest ATPL subjects and one of the most operationally important. The volume is high, but patterns become easier once you connect weather theory with the actual cockpit effects it produces.

Exam focus

Large factual and conceptual weather syllabus

  • Atmospheric structure, stability, pressure systems, and fronts
  • Cloud formation, icing, thunderstorms, turbulence, and fog
  • METAR, TAF, significant weather interpretation, and wind behaviour
Open subject guide

061

General Navigation

Very Hard

General Navigation is one of the subjects that most often separates high scorers from struggling students. The concepts are manageable, but only if you build them layer by layer and keep the maths active.

Exam focus

Conceptual navigation maths and chart interpretation

  • Chart projections, convergency, and route representation
  • Wind triangles, track, heading, groundspeed, and ETA logic
  • Great-circle and rhumb-line concepts plus position determination
Open subject guide

062

Radio Navigation

Hard

Radio Navigation rewards students who understand what the aid is actually measuring and what can distort or limit the indication. Memorising acronyms alone is not enough.

Exam focus

Mixed theory, signal behaviour, and equipment use

  • VOR, DME, NDB, and ADF principles and errors
  • ILS, marker beacons, radar, GNSS, and RNAV concepts
  • Signal propagation, range limitations, and operational application
Open subject guide

071

Operational Procedures

Medium

Operational Procedures sits at the intersection of regulation and real-world airline or IFR operations. It is easier to retain when you link each procedure to the environment where it matters.

Exam focus

Procedure-rich operational knowledge

  • NOTAMs, AIP structure, and operational documentation
  • Dangerous goods, emergency procedures, and abnormal situations
  • Special operations such as RVSM, ETOPS, and contingency procedures
Open subject guide

081

Principles of Flight

Medium-Hard

Principles of Flight is easier when you focus on cause and effect rather than trying to memorise disconnected aerodynamic statements. The concepts link together, and the exam rewards that understanding.

Exam focus

Conceptual aerodynamics with applied reasoning

  • Lift, drag, angle of attack, and CL/CD relationships
  • Stability, control surfaces, and trim behaviour
  • High-speed effects, swept wings, and high-lift devices
Open subject guide

091

VFR Communications

Easy-Medium

VFR Communications is a smaller ATPL paper, but accuracy still matters. Phraseology is predictable once you revise it as standard patterns instead of isolated sentences.

Exam focus

Phraseology and procedural recall

  • Standard VFR phraseology and call structure
  • Readbacks, clearances, and radio discipline
  • Distress, urgency, and abnormal communication situations
Open subject guide

092

IFR Communications

Easy-Medium

IFR Communications focuses on standard instrument-flight exchanges, clearances, readbacks, and disciplined radio use. Students usually score well when they learn the sequence and purpose of each call.

Exam focus

Structured phraseology and clearance logic

  • IFR clearance structure and readback rules
  • Holding, approach, and en-route phraseology
  • Urgency, distress, and radio-failure situations
Open subject guide

13 or 14 ATPL subjects? Both answers are right.

If you have seen both numbers, neither source is wrong; they count different things. Under the current EASA syllabus (the ECQB question bank generation, often called the new ATPL syllabus) the exam set is 13 examination papers: VFR and IFR Communications, which used to be two separate papers, are now examined together as a single Communications paper. The older syllabus had 14 papers, which is why many schools, forums, and question banks still say 14 ATPL subjects.

SkyStudy organises practice into 14 practice subjects because VFR Communications (091) and IFR Communications (092) stay separate in the app: the phraseology and procedures differ enough that drilling them separately works better, even though you sit them as one paper.

The Knowledge, Skills and Attitudes component (KSA, area 100) does not change the count either: it is assessed through your ATO and scenario-based questions woven into the other papers, not as a separate examination.

The examination rules behind this (attempt, sitting, and window limits under FCL.025) are published in the EASA Easy Access Rules for Aircrew and on EUR-Lex (Regulation (EU) No 1178/2011). To map the 13 papers onto sittings within the FCL.025 limits, use the free ATPL exam planner, and when you are ready to practise, the ATPL question bank covers every subject with explanations. For how the knowledge itself is organised and studied (notes, question practice, and what self-study really means under EASA rules), see the ATPL theory guide.

Want practice questions and timed mock exams too?

The subject guides help students discover the syllabus through search, while SkyStudy turns that traffic into real study sessions with practice questions, mock exams, analytics, and spaced repetition.

Practice every ATPL subject

The question bank covers every EASA ATPL subject with explanations and spaced repetition. Free to start, no card needed.

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