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What does the syllabus require me to know about how it flies?

Basic OperationsAdvanced Operations1 citations

Unofficial translation: 中文译本 →

What you will know

Know what Section 7 asks a candidate to be able to do about lift, stability, control surfaces and multi-rotor dynamics — the physics behind the controls on the station.

Before this lesson

  • You know that the examinations are built on , so its sections are the syllabus. TP15263 area7
  • You know that all of Section 7 is basic and advanced work. TP15263 area7

How it works

1. Lift, aerofoils, and the four forces

The first objective is the whole subject in five words: describe how lift is produced. TP15263 area7

The aerofoil category narrows it to control: explain how lift is controlled — the same question the syllabus asks about a helicopter's rotor in its own category. TP15263 area7

Forces acting on an aircraft is the one with a number in it: identify the four forces acting on an aircraft in flight, and describe how they are balanced during manoeuvres and in steady flight. TP15263 area7

2. Parts, stability and load factor

Aircraft parts asks for the function of the vertical fin and for the basic lifting and stabilizing components to be identified — fixed-wing parts, in the wording of the topic list. TP15263 area7

Stability asks one question: how the centre of gravity affects longitudinal stability. TP15263 area7

Load factor is the category with a consequence attached: what can affect the load factor, and the fact that increasing the load factor requires increased lift, and therefore increased drag. TP15263 area7

3. Wings, propellers and rotors

The wing's design affects performance, and the condition of the propeller or rotor affects performance — a maintenance question as much as an aerodynamic one, and the one an owner is most likely to meet in practice. TP15263 area7

4. The controls, by aircraft type

Aeroplane flight controls ask for the function of the different control surfaces and for the function of trim, plus the axes and planes of movement. TP15263 area7

Helicopter flight controls ask how lift is created with a rotary wing, powered and in autorotation, how it is controlled, and what the tail rotor and counter-rotating rotors do, with the cyclic named in the topic list. TP15263 area7

Multi-rotor dynamics is the category that matches most of what this app's readers fly: how yaw, pitch, roll and climb are achieved, how to avoid dynamic rollover in a crosswind, typical autopilot modes (manual, attitude, GPS position hold), and how asymmetric recirculation can upset lateral control. TP15263 area7

Your checklist

You are ready for Section 7 questions when you can:

  • Describe how lift is produced, and how it is controlled TP15263 area7
  • Name the four forces, and say how they balance in steady flight and in manoeuvres TP15263 area7
  • State the function of the vertical fin, and identify the lifting and stabilizing components TP15263 area7
  • Explain the centre of gravity's effect on longitudinal stability TP15263 area7
  • Explain what affects load factor, and why more load factor means more drag TP15263 area7
  • Say how wing design and propeller or rotor condition affect performance TP15263 area7
  • Describe the control surfaces and trim, and the axes of movement TP15263 area7
  • Describe rotary-wing lift, autorotation, and the tail rotor's function TP15263 area7
  • Explain yaw, pitch, roll and climb in a multi-rotor, and how to avoid dynamic rollover TP15263 area7

Where people go wrong

Symptom Likely cause What to do
A question asks how many forces act in flight The objective names the number explicitly Four, and be able to balance them TP15263 area7
Load factor is treated as a structural limit only The objective links it to lift and drag Follow the consequence through TP15263 area7
A topic such as "variation" has no objective beside it Objectives are printed once per category Read the category's list TP15263 area7
Multi-rotor behaviour is assumed to be the same as a fixed wing The section gives multi-rotor dynamics its own category Learn the modes and the recirculation hazard TP15263 area7

Test yourself

Sources

  • , Section 7 — Theory of flight (the sample learning objectives table)

Practise this lesson →

Lesson 50 of 50 in Basic Operations — the last one.

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