Every question is auto-graded, tagged with the chapter it came from and marked Theory or Numerical. Wrong answers are filed in your mistakes bank automatically, per subject.
011,410 questions
Principles of flight
Aerofoil geometry, the lift equation, drag and the drag curve, lift–drag ratio, climbing, turning and manoeuvre, load factor and the flight envelope, stability and control in all three axes, high-lift devices, stalling and spinning, and high-speed flight.
AerofoilClimbing FlightFlight Envelopes & PerformanceFlying ControlsHigh Lift DevicesHigh Speed FlightLift & DragPower Available & RequiredStability & ManoeuvrabilityStallingTurning FlightAerodynamics
02384 questions
Piston engines & propellers
The four-stroke cycle, carburation and fuel injection, mixture, ignition, cooling and lubrication, detonation and pre-ignition, engine handling, and the propeller — fixed pitch and constant speed, blade angle, efficiency and the failure cases.
PropellersPistonPropellerCarburettorsCoolingFuel InjectionFuelFuelsIgnition SystemsIgnitionLubricationMixture
03320 questions
Gas turbines
The gas turbine cycle stage by stage — inlet, compressor, combustion chamber, turbine and exhaust — plus lubrication, gearboxes and accessory drives, thrust and thrust augmentation, reverse thrust, and the performance and handling questions that come with them.
Gas TurbineAuxiliary Power UnitCombustion ChamberCompressorGas Turbine IntroductionGas Turbine LubricationGear Box & Accessory DrivesInletPerformance & PowerPerformance & Thrust AugmentationReverse ThrustThrust
04649 questions
Electrics & avionics theory
DC and AC electrical systems, batteries, generators and alternators, motors, transformers, circuit protection and capacitors, bonding and screening, logic gates and basic computers, plus the radio theory, propagation and modulation the paper carries.
AC ElectricDC ElectricLogic CircuitsRadio TheoryAC MotorsAlternatorsBasic ComputersBasic PrinciplesBatteriesBonding & ScreeningCircuit Protection & CapacitorsDC Motors
05827 questions
Airframe & aircraft systems
Structures, fuselage, wings and stabilising surfaces, landing gear and brakes, hydraulics and powered flying controls, fuel systems, pressurisation and air conditioning, oxygen, ice and rain protection, fire detection and protection and emergency equipment.
Emergency EquipmentFuel SystemsHydraulicsLanding GearPressurisationSnow & IceStructurePractical Aircraft SystemsBleed AirAirframe ContaminationAnti Icing & Rain ProtectionFire Detection and Protection
06644 questions
Mixed revision & full-length sets
Cross-topic revision sets and full-length practice papers drawn from the whole subject — the sittings that check whether the individual chapters have actually joined up.
Mixed revisionFull-length setsCross-topic practice