Q&A Forum
Ask a question1,112 questions · 1,913 answers · 460 members contributing
EASA MODULES
1. Mathematics Arithmetic · Algebra · Geometry
160 threads 5 Mar 2026 · SirPitz
2. Physics Matter · Mechanics · Thermodynamics · Optics (Light) · Wave Motion and Sound
135 threads 12 Aug 2026 · PART66Online
3. Electrical fundamentals DC Circuits & Power · Capacitance, Magnetism & Inductance · DC Machines & AC Theory · Transformers, Filters & AC Machines
156 threads 1 Jul 2026 · Marek_AME
4. Electronic fundamentals Diodes · Transistors · Integrated Circuits · Printed Circuit Boards · Servomechanisms
27 threads 8 Jul 2026 · Marek_AME
5. Digital techniques / Electronic instrument systems Electronic Instrument Systems · Numbering Systems · Data Conversion · Data Buses · Logic, Computers & Displays
51 threads 5 Jun 2026 · Devraj_S
6. Materials & hardware Ferrous Materials · Non-Ferrous Materials · Composites & Corrosion · Fasteners & Hardware · Pipes, Bearings & Cables
62 threads 9 Jun 2026 · Ody balsa
7. Maintenance practices Safety Precautions · Tools · Electrical Wiring (EWIS) · Riveting · Inspection & NDI
47 threads 12 Jun 2026 · Rhysfaulkner96
8. Basic aerodynamics Physics of the Atmosphere · Aerodynamics · Theory of Flight · Flight Stability and Dynamics
129 threads 4 Jun 2026 · Merejohn
9. Human factors Human Error & Just Culture · Human Performance & Limitations · Communication & Teamwork · Performance Factors & Environment
30 threads 5 days ago · svenj88
10. Aviation legislation Regulatory Framework · Certifying Staff · Maintenance Organisations · Air Operations · Continuing Airworthiness
35 threads 3 Aug 2026 · PART66Online
11. Aeroplane aerodynamics, structures and systems Theory of Flight · Airframe Structures · Hydraulics & Landing Gear · Air, Fuel & Environmental Systems · Electrical & Avionics
75 threads 22 Aug 2026 · khalidjat
12. Helicopter aerodynamics, structures and systems Rotary Wing Aerodynamics · Flight Control Systems · Transmissions · Airframe Structures · Hydraulic Power
22 threads 6 Oct 2025 · Majorkidkid
13. Aircraft aerodynamics, structures and systems Electrical Power · Instruments · Communication / Navigation · Autoflight · Integrated Modular Avionics
60 threads 23 Mar 2026 · huly
14. Propulsion Engines · Engine Control · Engine Indication · Propeller Systems · Starting & Ignition
25 threads 11 Feb 2026 · Spaceresearcher
15. Gas turbine engine Fundamentals & Performance · Intake & Compressor · Combustion Section · Turbine & Exhaust · Indications, Monitoring & FOD
63 threads 1 Oct 2025 · c.stravopodis
16. Piston engine Fundamentals · Performance & Induction · Fuel & Carburettors · Ignition & Starting · Lubrication No threads yet
0 threads
17. Propeller Fundamentals & Construction · Pitch Control · Synchronising · Ice Protection · Maintenance & Storage
35 threads 16 Aug 2026 · PART66Online
GENERAL DISCUSSION
Exams & Revision Sitting the exams, pass marks, negative marking and revision tactics. No threads yet
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Licensing & Categories Licence categories A, B1, B2 and B3, applications and extensions. No threads yet
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Experience & Logbook Practical experience requirements, logbooks and on-the-job training. No threads yet
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Type Ratings Aircraft type training, type examinations and type question banks. No threads yet
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Working Abroad Licence recognition and conversion outside EASA. No threads yet
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RECENT ACTIVITY
W
#1 being wrong is it because of the missing of keywords?
on “The aim of a human factors programme within an organisation is”
wan.yc.justin · 9. Human factors · 1 reply · 5 days ago
K
2 dots equals 4 degrees. Each point represent 2 degrees and full deflection is 10 degrees
on “What deviation is indicated by 2 dots in a VOR system?”
khalidjat · 11. Aeroplane aerodynamics, structures and systems · 0 replies · 22 Aug 2026
J
What about a king air 200? The power control lever only operates the FCU via the connecting rod. The prop is controlled via a separate lever. That lever only controls the primary governor. So this question is not accurate. Not all aircraft have FADEC! A&B can be correct for this question so maybe it should read "on a modern turboprop aircraft the power lever controls?"
on “On a modern single lever turboprop, the power lever controls:”
josh93 · 17. Propeller · 1 reply · 16 Aug 2026
B
Formula = 2n^2 (where n = Shell #)
on “The maximum number of electrons in the second shell is”
BurtoJ · 2. Physics · 1 reply · 12 Aug 2026
A
seguridadaerea.gob.es/sites/default/f... PAGE 13 3 months , (90 days) before licence expires.
on “How far before expiry may a Part-66 aircraft maintenance licence renewal application be submitted?”
ALEX LORENCIO · 10. Aviation legislation · 1 reply · 3 Aug 2026
G
Hello , i am thinking that the correct answer in this question is 181 degrees .If the deviation is +1 dergee that means that if the compas heading to 181 degrees the arcraft goes heading 180 degrees ( 181 degrees - (+1) degree = 180 degrees). On the other hand if the pilot steer to 179 degree the compass will show 180 degree but the plane would travel too 179 degrees . Is this right or am i wrong to somehtink? thank you for your time , George
on “A compass has a residual deviation of +1 degree. To fly a heading of 180 degrees the pilot must steer”
GEO9816 · 11. Aeroplane aerodynamics, structures and systems · 1 reply · 2 Aug 2026
J
The PT6 starts with the blades in feather?
on “Propeller control during engine start:”
JayACA · 17. Propeller · 1 reply · 23 Jul 2026
T
why is this here (coming from CASA system) this is a buit random
on “The temperature of boiling water at standard pressure on the Fahrenheit and Centigrade scale is”
Tj Anderson · 2. Physics · 1 reply · 18 Jul 2026
U
Class C is specially designed for RF and only that and can't be used for audio
on “The most suitable class of amplifier for a high fidelity radio transmitter is”
udreacc · 4. Electronic fundamentals · 1 reply · 8 Jul 2026
U
in the question it is not mentioned it is referring to AC
on “The output of a tachogenerator should be”
udreacc · 4. Electronic fundamentals · 1 reply · 8 Jul 2026