Knowledge Test
FAA written exam assessing theoretical aeronautical knowledge.
Getting Started: Your Commercial Pilot Journey
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Everything from the course in one searchable place: 326 entries. Use it to review before a practice test or look up a word you forgot.
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FAA written exam assessing theoretical aeronautical knowledge.
Getting Started: Your Commercial Pilot Journey
Airman Knowledge Test Report; official record of test results.
Getting Started: Your Commercial Pilot Journey
Book containing charts, figures, and tables referenced in the test.
Getting Started: Your Commercial Pilot Journey
References to Airman Certification Standards for missed questions.
Getting Started: Your Commercial Pilot Journey
Federal Aviation Regulations; rules governing aviation in the US.
Getting Started: Your Commercial Pilot Journey
Pilot's Handbook of Aeronautical Knowledge; FAA reference book.
Getting Started: Your Commercial Pilot Journey
Required signature from a flight instructor to take the test.
Getting Started: Your Commercial Pilot Journey
To remember the key test elements: 'KNOW Your FAA Exam' – Knowledge Test, 100 Questions, 70% Pass, AKTR Report, Figures/Charts.
Getting Started: Your Commercial Pilot Journey
For the Commercial Pilot Knowledge Test, pay close attention to questions involving aircraft performance charts (e.g., takeoff/landing distance, climb rates) and weight and balance calculations. These often require precise reading of graphs and tables in the test supplement. Memorize the minimum passing score of 70% and the number of questions (100).
Getting Started: Your Commercial Pilot Journey
Underestimating the importance of the test supplement: Many questions require you to refer to charts or figures. Practice using these materials.
Getting Started: Your Commercial Pilot Journey
Relying solely on rote memorization of practice questions: The FAA frequently updates and rephrases questions. Focus on understanding the underlying concepts.
Getting Started: Your Commercial Pilot Journey
Not reviewing missed questions with your instructor: The ACS codes on your AKTR are a roadmap for targeted improvement before your checkride.
Getting Started: Your Commercial Pilot Journey
Airman Certification Standards; FAA document for pilot certification.
Getting Started: Your Commercial Pilot Journey
Major section of the ACS grouping related tasks.
Getting Started: Your Commercial Pilot Journey
Specific maneuver or procedure within an Area of Operation.
Getting Started: Your Commercial Pilot Journey
Theoretical information required for an ACS task.
Getting Started: Your Commercial Pilot Journey
Identification and mitigation of hazards in aviation.
Getting Started: Your Commercial Pilot Journey
Practical performance criteria for flight maneuvers.
Getting Started: Your Commercial Pilot Journey
The 'checkride' where flight proficiency is evaluated.
Getting Started: Your Commercial Pilot Journey
KRS: 'Knowledge, Risk, Skill' – the three pillars of every ACS Task. Remember, you need to Know it, manage the Risks, and have the Skill to do it!
Getting Started: Your Commercial Pilot Journey
For the Commercial Pilot Airplane knowledge test, questions directly align with the 'Knowledge' elements found under each Task in the Commercial Pilot Airplane ACS. If a question asks about a specific regulation or procedure, the answer will be found in the references cited in the relevant ACS task.
Getting Started: Your Commercial Pilot Journey
Only studying for the knowledge test and ignoring the practical test standards outlined in the ACS.
Getting Started: Your Commercial Pilot Journey
Treating the ACS as a checklist for the checkride day only, instead of a foundational training document.
Getting Started: Your Commercial Pilot Journey
Not understanding the integrated nature of Knowledge, Risk Management, and Skill within each task.
Getting Started: Your Commercial Pilot Journey
Allows acting as PIC for compensation or hire.
Commercial Pilot Regulations & Responsibilities
Receiving payment for services as a pilot.
Commercial Pilot Regulations & Responsibilities
Authorizes flight in instrument meteorological conditions.
Commercial Pilot Regulations & Responsibilities
Flight between different points, often over 50 NM.
Commercial Pilot Regulations & Responsibilities
Holding out to the public for transport for hire.
Commercial Pilot Regulations & Responsibilities
Selective transport for hire, not holding out.
Commercial Pilot Regulations & Responsibilities
Governs pilot certification and ratings.
Commercial Pilot Regulations & Responsibilities
Governs air carrier and commercial operator certification.
Commercial Pilot Regulations & Responsibilities
To remember the limitations: '50-Night-A' (50 NM cross-country, Night, Class A airspace) requires an Instrument Rating for passengers for hire.
Commercial Pilot Regulations & Responsibilities
For the exam, remember the specific limitations for commercial pilots without an instrument rating: no carrying passengers for hire on cross-country flights exceeding 50 nautical miles or at night, and no carrying passengers for hire in Class A airspace. The exceptions, especially for flight instruction, are also frequently tested.
Commercial Pilot Regulations & Responsibilities
Assuming a commercial pilot certificate alone permits all types of commercial operations, especially common carriage, without additional operating certificates.
Commercial Pilot Regulations & Responsibilities
Forgetting the 50 nautical mile and night limitations for carrying passengers for hire without an instrument rating.
Commercial Pilot Regulations & Responsibilities
Confusing the privileges of a commercial pilot for hire with the broader requirements for air carrier operations under Part 119.
Commercial Pilot Regulations & Responsibilities
General operating and flight rules for all aircraft.
Commercial Pilot Regulations & Responsibilities
City, town, settlement, or open-air assembly of persons.
Commercial Pilot Regulations & Responsibilities
Lowest altitude an aircraft may be operated without undue hazard.
Commercial Pilot Regulations & Responsibilities
The aircraft that has priority in a potential collision scenario.
Commercial Pilot Regulations & Responsibilities
Minimum instruments for visual flight during daylight.
Commercial Pilot Regulations & Responsibilities
Additional instruments for visual flight during nighttime.
Commercial Pilot Regulations & Responsibilities
Instruments required for flight under instrument flight rules.
Commercial Pilot Regulations & Responsibilities
Prohibition against flying within 8 hours of alcohol consumption.
Commercial Pilot Regulations & Responsibilities
GRABCARD for IFR equipment: G-Generator/alternator, R-Rate-of-turn indicator, A-Attitude indicator, B-Ball (slip/skid indicator), C-Clock, A-Altimeter (sensitive), R-Radios (navigation/communication), D-Directional gyro (heading indicator).
Commercial Pilot Regulations & Responsibilities
The exam frequently tests on minimum safe altitudes (Part 91.119) and alcohol/drug prohibitions (Part 91.17). Memorize the 1,000 ft over congested areas and 500 ft over non-congested areas, and the 8-hour/0.04% alcohol rule. Keywords to spot: 'congested', 'non-congested', 'alcohol', 'drugs'.
Commercial Pilot Regulations & Responsibilities
Confusing minimum safe altitudes for congested vs. non-congested areas.
Commercial Pilot Regulations & Responsibilities
Underestimating the strictness of the alcohol prohibition (e.g., thinking 4 hours is enough if you feel fine).
Commercial Pilot Regulations & Responsibilities
Forgetting that aircraft in distress always have the right-of-way, overriding all other rules.
Commercial Pilot Regulations & Responsibilities
FAA authorization to conduct commercial air transportation operations.
Commercial Pilot Regulations & Responsibilities
Legal document detailing specific authorizations and limitations for an air carrier.
Commercial Pilot Regulations & Responsibilities
FARs for scheduled air carriers (major airlines).
Commercial Pilot Regulations & Responsibilities
FARs for commuter and on-demand operations (air taxis, charters).
Commercial Pilot Regulations & Responsibilities
Think of '119' as '1 Certificate, 1 Operation, 9 rules to follow' – reminding you it's about getting certified for specific commercial operations.
Commercial Pilot Regulations & Responsibilities
Memorize the general definition of 'common carriage' and the types of operations that require an Air Carrier Certificate under Part 119, and those that are specifically excluded. Keywords to spot include 'holding out,' 'compensation or hire,' and 'air carrier certificate.'
Commercial Pilot Regulations & Responsibilities
Assuming a commercial pilot certificate alone authorizes all commercial operations.
Commercial Pilot Regulations & Responsibilities
Not understanding the difference between common carriage and private carriage.
Commercial Pilot Regulations & Responsibilities
Ignoring the specific limitations and authorizations outlined in an operator's OpSpecs.
Commercial Pilot Regulations & Responsibilities
Comprehensive inspection required every 12 calendar months for all aircraft.
Commercial Pilot Regulations & Responsibilities
Required every 100 flight hours for aircraft carrying persons for hire.
Commercial Pilot Regulations & Responsibilities
Mandatory FAA regulation to correct an unsafe condition in aircraft.
Commercial Pilot Regulations & Responsibilities
Aircraft meets design standards and is in a condition for safe flight.
Commercial Pilot Regulations & Responsibilities
Documentation of all maintenance, repairs, and inspections performed.
Commercial Pilot Regulations & Responsibilities
Emergency Locator Transmitter; inspected every 12 calendar months.
Commercial Pilot Regulations & Responsibilities
Think of 'A 100 TPP ELT' to remember the key inspection intervals: Annual, 100-hour, Transponder, Pitot-Static, ELT.
Commercial Pilot Regulations & Responsibilities
For the exam, remember the specific intervals: Annual (12 cal months), 100-Hour (for hire), Transponder (24 cal months), Pitot-Static (24 cal months for IFR), ELT (12 cal months). ADs are mandatory and must be complied with.
Commercial Pilot Regulations & Responsibilities
Confusing the 100-hour inspection with the annual inspection; they are distinct requirements, though an annual can substitute for a 100-hour.
Commercial Pilot Regulations & Responsibilities
Forgetting to check AD compliance, especially recurring ones, or assuming an AD is only for 'other' aircraft.
Commercial Pilot Regulations & Responsibilities
Operating an aircraft that is due for an inspection, even if it's just a few minutes over the limit, without proper authorization or deferral.
Commercial Pilot Regulations & Responsibilities
Upward aerodynamic force opposing weight.
Advanced Aerodynamics & Aircraft Performance
Downward force due to gravity on aircraft mass.
Advanced Aerodynamics & Aircraft Performance
Forward force propelling aircraft, opposing drag.
Advanced Aerodynamics & Aircraft Performance
Rearward retarding force opposing thrust.
Advanced Aerodynamics & Aircraft Performance
Angle between wing chord line and relative wind.
Advanced Aerodynamics & Aircraft Performance
Drag from aircraft shape, increases with airspeed.
Advanced Aerodynamics & Aircraft Performance
Drag from lift generation, decreases with airspeed.
Advanced Aerodynamics & Aircraft Performance
AOA where maximum lift is generated; exceeding it causes a stall.
Advanced Aerodynamics & Aircraft Performance
L-W-T-D: 'Little Wizards Take Drugs' - Lift, Weight, Thrust, Drag. Remember their opposing pairs!
Advanced Aerodynamics & Aircraft Performance
The FAA Commercial Pilot knowledge test frequently asks about the relationship between the four forces in different flight conditions (e.g., climb, descent, turn, accelerated flight). Memorize that in unaccelerated, level flight, Lift = Weight and Thrust = Drag. For a climb, Thrust > Drag and Lift > Weight (initially).
Advanced Aerodynamics & Aircraft Performance
Confusing total drag with only parasite drag; remember induced drag is also a significant component, especially at low airspeeds.
Advanced Aerodynamics & Aircraft Performance
Believing that lift is solely due to Bernoulli's principle; the Coanda effect and Newton's third law (deflecting air downwards) also contribute significantly.
Advanced Aerodynamics & Aircraft Performance
Assuming that increasing angle of attack always increases lift; beyond the critical angle of attack, lift decreases rapidly, leading to a stall.
Advanced Aerodynamics & Aircraft Performance
Ratio of lift to weight, expressed in Gs.
Advanced Aerodynamics & Aircraft Performance
Max speed for full control inputs without structural damage.
Advanced Aerodynamics & Aircraft Performance
Graph showing aircraft structural limits (velocity vs. G-load).
Advanced Aerodynamics & Aircraft Performance
Minimum speed for sustained flight at a given load factor.
Advanced Aerodynamics & Aircraft Performance
Max G-force an aircraft can withstand without permanent deformation.
Advanced Aerodynamics & Aircraft Performance
Max G-force an aircraft can withstand before structural failure.
Advanced Aerodynamics & Aircraft Performance
Va: 'V'ery 'A'lways 'A'void 'A'brupt 'A'ction 'A'bove 'A'll 'A'llowable 'A'irspeeds. (The 'A's remind you of 'Abrupt Action' and 'Allowable Airspeeds').
Advanced Aerodynamics & Aircraft Performance
For the exam, memorize that maneuvering speed (Va) decreases with a decrease in aircraft weight. Also, understand that operating below Va allows the aircraft to stall before structural damage occurs from abrupt control inputs or turbulence.
Advanced Aerodynamics & Aircraft Performance
Mistaking Va as a fixed speed; it changes with aircraft weight.
Advanced Aerodynamics & Aircraft Performance
Believing Va protects against all structural damage, rather than just from abrupt control inputs or gusts.
Advanced Aerodynamics & Aircraft Performance
Not understanding that exceeding the limit load factor, even briefly, can cause permanent structural deformation.
Advanced Aerodynamics & Aircraft Performance
Aerodynamic condition where critical angle of attack is exceeded, causing lift loss.
Advanced Aerodynamics & Aircraft Performance
An aggravated stall resulting in uncommanded rotation about the vertical axis.
Advanced Aerodynamics & Aircraft Performance
A force that causes an aircraft to rotate around its vertical axis.
Advanced Aerodynamics & Aircraft Performance
Acronym for spin recovery: Power idle, Ailerons neutral, Rudder opposite, Elevator forward.
Advanced Aerodynamics & Aircraft Performance
Stall occurring at high altitude due to reduced air density, higher true airspeed.
Advanced Aerodynamics & Aircraft Performance
Narrow flight envelope at high altitude between Mach buffet and low-speed stall.
Advanced Aerodynamics & Aircraft Performance
To recover from a spin, remember PARE: Power idle, Ailerons neutral, Rudder opposite, Elevator forward. 'PARE' away the spin!
Advanced Aerodynamics & Aircraft Performance
For the Commercial Pilot knowledge test, be prepared to identify the definition of a stall, the conditions required for a spin, and the standard spin recovery procedure (PARE). Also, understand how decreased air density at high altitudes affects stall speed and the concept of 'coffin corner'.
Advanced Aerodynamics & Aircraft Performance
Mistaking a stall for simply low airspeed; it's about angle of attack.
Advanced Aerodynamics & Aircraft Performance
Applying incorrect control inputs during a spin recovery, especially using ailerons.
Advanced Aerodynamics & Aircraft Performance
Underestimating the impact of high altitude on stall speed and aircraft performance.
Advanced Aerodynamics & Aircraft Performance
Pressure altitude corrected for non-standard temperature.
Advanced Aerodynamics & Aircraft Performance
Altitude in the standard atmosphere corresponding to a given pressure.
Advanced Aerodynamics & Aircraft Performance
Graphs/tables in POH/AFM showing aircraft capabilities.
Advanced Aerodynamics & Aircraft Performance
Distance aircraft travels on the ground during takeoff/landing.
Advanced Aerodynamics & Aircraft Performance
The vertical speed at which an aircraft gains altitude.
Advanced Aerodynamics & Aircraft Performance
Estimating values between known data points on a chart.
Advanced Aerodynamics & Aircraft Performance
Standard reference height for takeoff/landing distance calculations.
Advanced Aerodynamics & Aircraft Performance
Wind blowing against/with the direction of travel.
Advanced Aerodynamics & Aircraft Performance
Heavy, Hot, High, Humid = Horrible Performance! (Remember these conditions degrade aircraft performance.)
Advanced Aerodynamics & Aircraft Performance
The FAA Commercial Pilot knowledge test frequently includes questions requiring you to extract data from provided performance charts. Pay close attention to the chart's specific conditions (e.g., flaps setting, power setting) and ensure you correctly apply density altitude corrections. Keywords like 'takeoff distance over a 50-foot obstacle' or 'time to climb' are common.
Advanced Aerodynamics & Aircraft Performance
Failing to interpolate correctly between chart values, leading to inaccurate performance predictions.
Advanced Aerodynamics & Aircraft Performance
Neglecting to apply density altitude corrections, especially at high altitudes or temperatures.
Advanced Aerodynamics & Aircraft Performance
Not accounting for wind components (headwind/tailwind) when calculating takeoff and landing distances.
Advanced Aerodynamics & Aircraft Performance
Using the wrong chart for the specific aircraft or configuration (e.g., flaps setting).
Advanced Aerodynamics & Aircraft Performance
Part of total lift that pulls aircraft into a turn.
Advanced Aerodynamics & Aircraft Performance
Part of total lift that opposes weight, maintains altitude.
Advanced Aerodynamics & Aircraft Performance
The size of the circular path an aircraft flies in a turn.
Advanced Aerodynamics & Aircraft Performance
How quickly an aircraft changes its heading during a turn.
Advanced Aerodynamics & Aircraft Performance
Highest crosswind speed aircraft was safely landed during tests.
Advanced Aerodynamics & Aircraft Performance
Portion of wind blowing perpendicular to the runway centerline.
Advanced Aerodynamics & Aircraft Performance
Turn Tight, Think Twice: Tighter turns (smaller radius, faster rate) mean higher load factor and higher stall speed. Always think twice before pushing limits.
Advanced Aerodynamics & Aircraft Performance
For the exam, memorize that increasing bank angle increases load factor, which in turn increases stall speed. Know how to calculate the crosswind component using a crosswind chart or formula (Wind Speed * sin(Angle)). The maximum demonstrated crosswind is a certification guideline, not a structural limit.
Advanced Aerodynamics & Aircraft Performance
Confusing maximum demonstrated crosswind component with a structural limit; it's an operational guideline.
Advanced Aerodynamics & Aircraft Performance
Forgetting that increasing bank angle increases load factor and thus increases stall speed.
Advanced Aerodynamics & Aircraft Performance
Neglecting to account for gusts when evaluating crosswind conditions, which can be more dangerous than a steady wind.
Advanced Aerodynamics & Aircraft Performance
Propeller that automatically adjusts blade pitch to maintain set engine RPM.
Complex Aircraft Systems for Commercial Operations
System component that senses RPM and controls oil flow to change blade pitch.
Complex Aircraft Systems for Commercial Operations
Angle of the propeller blade relative to its plane of rotation.
Complex Aircraft Systems for Commercial Operations
Low blade angle, used for takeoff/climb (high RPM, max thrust).
Complex Aircraft Systems for Commercial Operations
High blade angle, used for cruise (low RPM, fuel efficiency).
Complex Aircraft Systems for Commercial Operations
Pressure in the engine's intake manifold, indicates power output.
Complex Aircraft Systems for Commercial Operations
Engine RPM exceeding its maximum redline limit.
Complex Aircraft Systems for Commercial Operations
Think 'Blue for Blades, Black for Blow' (Manifold Pressure). Blue propeller control adjusts the blades, black throttle controls the 'blow' or air into the engine.
Complex Aircraft Systems for Commercial Operations
For the Commercial Pilot knowledge test, remember that the propeller control (blue lever) sets RPM, and the throttle (black lever) sets manifold pressure. The 'propeller first, then throttle' rule for increasing power and 'throttle first, then propeller' for decreasing power is a frequently tested concept.
Complex Aircraft Systems for Commercial Operations
Confusing the function of the propeller control and the throttle; they are distinct and have a specific operating sequence.
Complex Aircraft Systems for Commercial Operations
Incorrectly assuming a constant-speed propeller is only for high-performance aircraft; many complex aircraft use them.
Complex Aircraft Systems for Commercial Operations
Forgetting the 'propeller first, then throttle' rule when increasing power, which can lead to engine overspeed or stress.
Complex Aircraft Systems for Commercial Operations
A switch on landing gear that prevents retraction when weight is on wheels.
Complex Aircraft Systems for Commercial Operations
A mechanism that mechanically secures landing gear in the retracted position.
Complex Aircraft Systems for Commercial Operations
A mechanism that mechanically secures landing gear in the extended position.
Complex Aircraft Systems for Commercial Operations
A device that converts energy into mechanical motion to extend/retract gear.
Complex Aircraft Systems for Commercial Operations
An audible alert for unsafe gear configuration, often linked to power settings.
Complex Aircraft Systems for Commercial Operations
An emergency gear extension method using gravity and aerodynamic forces.
Complex Aircraft Systems for Commercial Operations
Uses fluid pressure to operate landing gear components.
Complex Aircraft Systems for Commercial Operations
Think 'G.U.M.P.S.' for Gear Up, Manifold Pressure low, Propeller (constant speed), Squat switch. This helps remember conditions for gear warnings or complex aircraft features.
Complex Aircraft Systems for Commercial Operations
The FAA Commercial Pilot knowledge test often includes questions about landing gear warning systems. Memorize the conditions that typically activate the gear warning horn: throttle reduced below a specific manifold pressure (e.g., 15" Hg) with gear not down and locked, or flaps extended beyond a certain setting (e.g., 20 or 30 degrees) with gear not down and locked.
Complex Aircraft Systems for Commercial Operations
Forgetting to extend the landing gear before landing (a 'gear-up' landing).
Complex Aircraft Systems for Commercial Operations
Attempting to retract the landing gear while still on the ground, potentially damaging the aircraft.
Complex Aircraft Systems for Commercial Operations
Not understanding the specific emergency extension procedures for the aircraft being flown.
Complex Aircraft Systems for Commercial Operations
Exhaust-gas driven compressor for engine intake air.
Complex Aircraft Systems for Commercial Operations
Engine-driven compressor for engine intake air.
Complex Aircraft Systems for Commercial Operations
Valve controlling exhaust flow to the turbocharger turbine.
Complex Aircraft Systems for Commercial Operations
Delay in power response from a turbocharged engine.
Complex Aircraft Systems for Commercial Operations
Maintains comfortable cabin altitude at high flight levels.
Complex Aircraft Systems for Commercial Operations
Regulates air escaping the cabin to control pressure.
Complex Aircraft Systems for Commercial Operations
Pressure difference between cabin and outside atmosphere.
Complex Aircraft Systems for Commercial Operations
Highest altitude for rated horsepower in a turbocharged engine.
Complex Aircraft Systems for Commercial Operations
Think of a 'Super' hero, who is 'Directly' powered by their own strength (engine-driven). A 'Turbo' taxi uses 'Exhaust' fumes to go fast (exhaust-driven).
Complex Aircraft Systems for Commercial Operations
The FAA Commercial Pilot knowledge test often asks about the power source for superchargers versus turbochargers, the function of a wastegate, and the purpose of an aircraft pressurization system. Pay attention to how each system benefits high-altitude flight.
Complex Aircraft Systems for Commercial Operations
Confusing the power source of a turbocharger (exhaust gas) with a supercharger (engine crankshaft).
Complex Aircraft Systems for Commercial Operations
Underestimating the importance of monitoring engine parameters like EGT and manifold pressure in turbocharged aircraft.
Complex Aircraft Systems for Commercial Operations
Failing to understand the immediate actions required in a rapid depressurization emergency.
Complex Aircraft Systems for Commercial Operations
System that directly injects fuel into the engine.
Complex Aircraft Systems for Commercial Operations
Meters fuel flow based on engine parameters.
Complex Aircraft Systems for Commercial Operations
Atomizes and injects fuel into the engine.
Complex Aircraft Systems for Commercial Operations
Ice formation in a carburetor's Venturi, blocking airflow.
Complex Aircraft Systems for Commercial Operations
Introducing fuel to cylinders for engine start.
Complex Aircraft Systems for Commercial Operations
Exhaust Gas Temperature, used for mixture control.
Complex Aircraft Systems for Commercial Operations
FUEL PUMP (Fuel, Unit, Engine, Lines, Pump, Manifold, Priming) helps remember the flow and components for a fuel-injected engine.
Complex Aircraft Systems for Commercial Operations
The FAA Commercial Pilot knowledge test often asks about the advantages of fuel injection over carburetion, particularly regarding carburetor icing and fuel efficiency. Be prepared to identify the function of key components like the fuel control unit and fuel nozzles.
Complex Aircraft Systems for Commercial Operations
Confusing fuel injection with carburetion, especially regarding carburetor icing.
Complex Aircraft Systems for Commercial Operations
Incorrectly applying carburetor heat procedures to a fuel-injected engine.
Complex Aircraft Systems for Commercial Operations
Ignoring abnormal fuel flow or EGT readings, which can indicate fuel system issues.
Complex Aircraft Systems for Commercial Operations
Tendency of atmosphere to resist or enhance vertical motion.
Advanced Aviation Weather for Commercial Pilots
Rate at which air temperature decreases with increasing altitude.
Advanced Aviation Weather for Commercial Pilots
Cooling rate of unsaturated air, approx. 3°C per 1,000 feet.
Advanced Aviation Weather for Commercial Pilots
Cooling rate of saturated air, approx. 2°C per 1,000 feet.
Advanced Aviation Weather for Commercial Pilots
Actual observed lapse rate of the surrounding atmosphere.
Advanced Aviation Weather for Commercial Pilots
Atmospheric layer where temperature increases with altitude.
Advanced Aviation Weather for Commercial Pilots
Stable for dry air, unstable if lifted to saturation.
Advanced Aviation Weather for Commercial Pilots
Turbulence caused by vertical air currents from heating.
Advanced Aviation Weather for Commercial Pilots
STABLE means STRATUS, SMOOTH, STEADY. UNSTABLE means UPWARD, UGLY (clouds), UPSET (turbulence).
Advanced Aviation Weather for Commercial Pilots
Memorize the general relationships: Stable air = stratiform clouds, smooth air, poor visibility, steady precipitation. Unstable air = cumuliform clouds, turbulent air, good visibility, showery precipitation. The key is comparing the environmental lapse rate to the adiabatic lapse rates.
Advanced Aviation Weather for Commercial Pilots
Confusing the environmental lapse rate with the adiabatic lapse rates. The ELR is what's actually happening, while DALR/MALR are theoretical cooling rates of a parcel.
Advanced Aviation Weather for Commercial Pilots
Assuming all turbulence means instability. Mechanical turbulence can occur in stable air, especially near terrain.
Advanced Aviation Weather for Commercial Pilots
Forgetting that conditionally unstable means the atmosphere is stable for dry air but becomes unstable if that air reaches saturation.
Advanced Aviation Weather for Commercial Pilots
A sudden change in wind speed and/or direction over a short distance.
Advanced Aviation Weather for Commercial Pilots
A localized column of sinking air within a thunderstorm, causing severe wind shear.
Advanced Aviation Weather for Commercial Pilots
An atmospheric layer where temperature increases with altitude, trapping air.
Advanced Aviation Weather for Commercial Pilots
Low-Level Wind Shear Alert System, ground-based airport wind sensors.
Advanced Aviation Weather for Commercial Pilots
Terminal Doppler Weather Radar, detects microbursts and wind shear near airports.
Advanced Aviation Weather for Commercial Pilots
Wind Shear Alert System, onboard aircraft system providing warnings.
Advanced Aviation Weather for Commercial Pilots
Pilot Report, actual weather conditions encountered by an aircraft.
Advanced Aviation Weather for Commercial Pilots
A procedure to abort a landing and climb away for another attempt.
Advanced Aviation Weather for Commercial Pilots
To recover from wind shear, remember 'MAX PITCH, NO CHANGE!' (MAXimum thrust, PITCH up, NO CHANGE to flaps/gear).
Advanced Aviation Weather for Commercial Pilots
The FAA Commercial Pilot knowledge test often asks about the atmospheric conditions conducive to wind shear (e.g., thunderstorms, frontal zones, temperature inversions, jet streams) and the appropriate pilot response to a wind shear encounter (e.g., maximum thrust, pitch up to stick shaker, maintain configuration). Memorize the recovery actions.
Advanced Aviation Weather for Commercial Pilots
Failing to recognize the conditions conducive to wind shear during pre-flight planning.
Advanced Aviation Weather for Commercial Pilots
Delaying a go-around or recovery action when wind shear is encountered, leading to loss of control or terrain impact.
Advanced Aviation Weather for Commercial Pilots
Attempting to regain lost airspeed or altitude by reducing pitch during a wind shear recovery, which can worsen the situation.
Advanced Aviation Weather for Commercial Pilots
Opaque, rough ice from small supercooled droplets.
Advanced Aviation Weather for Commercial Pilots
Transparent, dense ice from large supercooled droplets.
Advanced Aviation Weather for Commercial Pilots
Combination of rime and clear ice characteristics.
Advanced Aviation Weather for Commercial Pilots
Liquid water existing below 0°C (32°F).
Advanced Aviation Weather for Commercial Pilots
Ice forming in the carburetor venturi due to cooling.
Advanced Aviation Weather for Commercial Pilots
Prevent ice formation (e.g., heated surfaces).
Advanced Aviation Weather for Commercial Pilots
Remove ice after it has formed (e.g., pneumatic boots).
Advanced Aviation Weather for Commercial Pilots
Atmospheric conditions where ice is observed or forecast.
Advanced Aviation Weather for Commercial Pilots
Rime is Rough and Rapid, Clear is Cold and Creeping. Remember 'R' for Rime and Rough, 'C' for Clear and Cold.
Advanced Aviation Weather for Commercial Pilots
For the exam, memorize the temperature ranges and droplet sizes associated with rime (small droplets, -10 to -20°C) and clear ice (large droplets, 0 to -10°C). Also, remember that carburetor ice can form at ambient temperatures up to 21°C (70°F).
Advanced Aviation Weather for Commercial Pilots
Underestimating the impact of even small amounts of ice on aircraft performance.
Advanced Aviation Weather for Commercial Pilots
Assuming anti-icing/de-icing systems make flight into severe icing conditions safe.
Advanced Aviation Weather for Commercial Pilots
Failing to recognize that carburetor ice can form on warm, humid days.
Advanced Aviation Weather for Commercial Pilots
Terminal Aerodrome Forecast; airport weather forecast.
Advanced Aviation Weather for Commercial Pilots
Aviation Routine Weather Report; current airport weather observation.
Advanced Aviation Weather for Commercial Pilots
Significant Meteorological Information; hazardous weather for all aircraft.
Advanced Aviation Weather for Commercial Pilots
Airmen's Meteorological Information; hazardous weather for light aircraft.
Advanced Aviation Weather for Commercial Pilots
Hazardous convective weather (thunderstorms, hail, tornadoes).
Advanced Aviation Weather for Commercial Pilots
Special METAR; unscheduled weather observation.
Advanced Aviation Weather for Commercial Pilots
To remember the types of AIRMETs: 'Sierra' for 'Seeing' (IFR/mountain obscuration), 'Tango' for 'Turbulence' (moderate turbulence/strong winds), and 'Zulu' for 'Zero' (moderate icing/freezing levels).
Advanced Aviation Weather for Commercial Pilots
The exam often presents a coded TAF or METAR and asks you to interpret specific elements like visibility, cloud ceiling, or wind. Memorize the common abbreviations and their meanings, especially for 'FM', 'TEMPO', 'PROB' in TAFs, and sky cover contractions like 'FEW', 'SCT', 'BKN', 'OVC'.
Advanced Aviation Weather for Commercial Pilots
Misinterpreting 'TEMPO' or 'PROB' in a TAF as a continuous condition, rather than temporary or probabilistic.
Advanced Aviation Weather for Commercial Pilots
Failing to cross-reference METARs with TAFs to see if actual conditions match the forecast, especially for rapidly changing weather.
Advanced Aviation Weather for Commercial Pilots
Ignoring the implications of 'UUA' (Urgent PIREP) and not seeking further information or adjusting flight plans immediately.
Advanced Aviation Weather for Commercial Pilots
Aircraft speed relative to the air mass.
Commercial Navigation & Flight Planning
Aircraft speed relative to the ground.
Commercial Navigation & Flight Planning
Angle to turn into wind to maintain course.
Commercial Navigation & Flight Planning
Direction steered, corrected for variation.
Commercial Navigation & Flight Planning
Angular difference between true and magnetic north.
Commercial Navigation & Flight Planning
Predicted time to complete a flight segment.
Commercial Navigation & Flight Planning
Graphs/tables showing aircraft capabilities.
Commercial Navigation & Flight Planning
Think 'True Cats Vary Magically' for True Course, Wind Correction Angle, True Heading, Variation, Magnetic Heading.
Commercial Navigation & Flight Planning
For the FAA knowledge test, be prepared to use an E6-B flight computer to solve problems involving true airspeed, ground speed, wind correction angle, and fuel consumption. Keywords like 'true course,' 'wind velocity,' and 'indicated airspeed' signal these calculations.
Commercial Navigation & Flight Planning
Forgetting to apply magnetic variation when converting true heading to magnetic heading.
Commercial Navigation & Flight Planning
Not accounting for climb and descent fuel burn and time, only focusing on cruise.
Commercial Navigation & Flight Planning
Incorrectly applying wind components (e.g., adding headwind instead of subtracting it from TAS).
Commercial Navigation & Flight Planning
Failing to continuously update calculations during flight as conditions change.
Commercial Navigation & Flight Planning
Fuel needed from departure to destination.
Commercial Navigation & Flight Planning
Fuel needed from destination to alternate airport.
Commercial Navigation & Flight Planning
Regulatory minimum fuel remaining upon landing.
Commercial Navigation & Flight Planning
Extra fuel for unforeseen delays or diversions.
Commercial Navigation & Flight Planning
Weather minimums for IFR destination to avoid alternate.
Commercial Navigation & Flight Planning
ATC notification: any delay may cause emergency.
Commercial Navigation & Flight Planning
For the 1-2-3 rule, think 'One hour before, two thousand feet, three miles visibility, one hour after.'
Commercial Navigation & Flight Planning
For the exam, memorize the specific fuel reserve times: 30 minutes (day VFR Part 91) and 45 minutes (night VFR Part 91, all IFR Part 91, all Part 135). Also, know the 1-2-3 rule for alternate airport requirements precisely.
Commercial Navigation & Flight Planning
Confusing Part 91 and Part 135 fuel reserve requirements, especially the 30-minute vs. 45-minute rule.
Commercial Navigation & Flight Planning
Forgetting to add alternate fuel when an alternate is required by the 1-2-3 rule.
Commercial Navigation & Flight Planning
Not accounting for climb, descent, and taxi fuel in the 'trip fuel' calculation, only cruise.
Commercial Navigation & Flight Planning
Misinterpreting 'minimum fuel' as a 'fuel emergency' when communicating with ATC.
Commercial Navigation & Flight Planning
Satellite-based system for position and time.
Commercial Navigation & Flight Planning
Ground-based system providing bearing from station.
Commercial Navigation & Flight Planning
Ground-based beacon for ADF bearing to station.
Commercial Navigation & Flight Planning
Area navigation, flexible flight path capability.
Commercial Navigation & Flight Planning
Augmentation system enhancing GPS accuracy.
Commercial Navigation & Flight Planning
A magnetic bearing from a VOR station.
Commercial Navigation & Flight Planning
Automatic Direction Finder, used with NDBs.
Commercial Navigation & Flight Planning
GPS is 'Global Position, Satellites,' VOR is 'Very Omnidirectional Range,' NDB is 'Non-Directional Beacon,' RNAV is 'Any Navigation Route.'
Commercial Navigation & Flight Planning
The FAA Commercial Pilot knowledge test often asks about the service volumes of VORs (Terminal, Low, High) and the components of RNAV systems (e.g., GPS, VOR/DME, INS). Memorize the frequency ranges for VOR (108.00-117.95 MHz) and NDB (190-535 kHz).
Commercial Navigation & Flight Planning
Confusing the operating principles of VOR (radial from station) and NDB (bearing to station).
Commercial Navigation & Flight Planning
Underestimating the limitations of NDBs, especially regarding signal interference and accuracy.
Commercial Navigation & Flight Planning
Not understanding that RNAV is a capability that can use various underlying navigation sources (GPS, VOR/DME, etc.).
Commercial Navigation & Flight Planning
Changing a flight's destination in-flight.
Commercial Navigation & Flight Planning
International distress signal for imminent danger.
Commercial Navigation & Flight Planning
International urgency signal, serious but not critical.
Commercial Navigation & Flight Planning
An airport meeting specific operational and safety needs.
Commercial Navigation & Flight Planning
Emergency priority order: control, direction, talk.
Commercial Navigation & Flight Planning
Transponder code for identification to ATC.
Commercial Navigation & Flight Planning
When an emergency hits, remember the '5 W's' for ATC: Who, What, Where, When (implied by 'now'), and What assistance. It's like telling a story of your emergency to ATC!
Commercial Navigation & Flight Planning
For the Commercial Pilot knowledge test, remember that the pilot in command is always the final authority and directly responsible for the operation of the aircraft. In an emergency, the PIC may deviate from any rule of 14 CFR Part 91 to the extent required to meet the emergency. Keywords to spot: 'pilot in command's authority' and 'deviation from regulations'.
Commercial Navigation & Flight Planning
Hesitating to declare an emergency: Pilots sometimes delay declaring an emergency out of embarrassment or fear, which can waste critical time and resources.
Commercial Navigation & Flight Planning
Failing to prioritize 'Aviate' first: Getting distracted by navigation or communication before ensuring the aircraft is under control can lead to loss of control.
Commercial Navigation & Flight Planning
Not utilizing all available resources: Overlooking ATC, flight attendants, or onboard charts/manuals can hinder effective decision-making.
Commercial Navigation & Flight Planning
Reduced mental/physical performance from sleep loss or circadian disruption.
Human Factors & Aeronautical Decision Making
Oxygen deficiency in the body, impairing function, especially at altitude.
Human Factors & Aeronautical Decision Making
Time from oxygen deprivation to loss of ability to take corrective action.
Human Factors & Aeronautical Decision Making
Colorless, odorless gas that binds to hemoglobin, causing oxygen starvation.
Human Factors & Aeronautical Decision Making
Pre-flight self-assessment tool: Illness, Medication, Stress, Alcohol, Fatigue, Emotion.
Human Factors & Aeronautical Decision Making
Inability to determine attitude, altitude, or velocity relative to Earth.
Human Factors & Aeronautical Decision Making
Excessive breathing leading to too much carbon dioxide exhaled, causing dizziness.
Human Factors & Aeronautical Decision Making
Formation of nitrogen bubbles in body tissues due to rapid pressure decrease.
Human Factors & Aeronautical Decision Making
To remember the IMSAFE checklist, think: 'I Must Stay Alert For Every flight.'
Human Factors & Aeronautical Decision Making
For the exam, memorize the specific FAA oxygen requirements: above 12,500 ft MSL up to 14,000 ft MSL for more than 30 minutes, pilot must use supplemental oxygen. Above 14,000 ft MSL, pilot must continuously use oxygen. Above 15,000 ft MSL, passengers must be provided oxygen.
Human Factors & Aeronautical Decision Making
Ignoring minor symptoms of fatigue or illness, assuming they will pass.
Human Factors & Aeronautical Decision Making
Not understanding that even legal amounts of alcohol or certain medications can impair flight performance.
Human Factors & Aeronautical Decision Making
Failing to use supplemental oxygen when required, or waiting too long to react to hypoxia symptoms.
Human Factors & Aeronautical Decision Making
Crew Resource Management; optimizes all available resources.
Human Factors & Aeronautical Decision Making
Accurate perception of the operational environment.
Human Factors & Aeronautical Decision Making
Sender sends, receiver repeats, sender confirms understanding.
Human Factors & Aeronautical Decision Making
Clearly and respectfully stating concerns or observations.
Human Factors & Aeronautical Decision Making
Efficient distribution of tasks among crew members.
Human Factors & Aeronautical Decision Making
Guiding and directing the crew; fostering collaboration.
Human Factors & Aeronautical Decision Making
Supporting leadership, executing tasks, and voicing concerns.
Human Factors & Aeronautical Decision Making
To remember CRM principles, think 'CALMS': Communication, Assertiveness, Leadership, Monitoring (Situational Awareness), Stress Management.
Human Factors & Aeronautical Decision Making
The FAA Commercial Pilot ACS (Area of Operation IV, Task B) specifically requires applicants to demonstrate an understanding of CRM principles, including effective communication, leadership, and decision-making. Be prepared for scenario-based questions that test your application of these concepts.
Human Factors & Aeronautical Decision Making
Failing to speak up when you observe a potential issue, assuming the Captain already knows.
Human Factors & Aeronautical Decision Making
Not actively listening to ATC instructions or other crew members, leading to misunderstandings.
Human Factors & Aeronautical Decision Making