Complete FAA Private Pilot (PPL), Instrument Rating (IFR), Commercial & Part 107 Drone Exam Study Guide

Comprehensive Active-Recall Curriculum: FAA Airman Knowledge Test preparation for Private Pilot (PAR), Instrument Rating (IRA), Commercial Pilot (CAX), and Part 107 Remote Pilot (sUAS): aerodynamics, pitot-static/gyroscopic instruments, airspace classes (A–G), VFR weather minimums, METAR/TAF decoding, FAR regulations, and IFR procedures. Practice 6 progressive flashcard decks (192 cards total) spanning foundational principles (basic), intermediate problem-solving (intermediate), and advanced exam mastery (advanced).

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Why Active Recall & Spaced Repetition Work for This Exam

Mastering FAA Private Pilot (PPL), Instrument Rating (IFR), Commercial Pilot & Part 107 Drone requires retrieving precise definitions, formulas, diagnostic rules, and edge-case distinctions under timed pressure. Passive re-reading creates an illusion of competence; active recall (testing yourself before viewing the answer) and spaced repetition strengthen long-term synaptic retrieval pathways.

Study Phase	Decks Covered	Target Mastery Level	Daily Active-Recall Protocol
Phase 1: Foundations (Weeks 1–2)	Decks 1 & 2 (Basic)	90%+ Instant Recall	32 new cards/day + full review of missed concepts
Phase 2: Application (Weeks 3–5)	Decks 3 & 4 (Intermediate)	Multi-step synthesis	32 new cards/day + interleaved Phase 1 review
Phase 3: Exam Mastery (Weeks 6–8)	Decks 5 & 6 (Advanced)	Timed exam readiness	Full 192-card spaced-repetition rotation + weak-spot drills

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Deck 1: Aerodynamics, Four Forces, Stalls/Spins, Load Factor & Flight Controls (32 Cards — Basic)

What this deck covers: Fundamental aerodynamics for FAA Private, Commercial, and CFI exams covering the four forces of flight, angle of attack and critical stall characteristics, induced vs. parasite drag, primary and secondary flight controls, left-turning tendencies, load factor and maneuvering speed (Va), spin recovery (PARE), stability axes, and center of gravity effects.

High-Yield Prompt / Question	Core Concept & Mechanism	Exam Application & Details
What are the four fundamental forces acting on an aircraft in flight, and how do they relate during unaccelerated straight-and-level flight?	Lift (upward), Weight (downward), Thrust (forward), and Drag (rearward).	In unaccelerated straight-and-level flight, opposing forces are in equilibrium: Lift equals Weight (L = W) and Thrust equals Drag (T = D).
How do Bernoulli's Principle and Newton's Third Law work together to generate aerodynamic lift across an airfoil?	By Bernoulli's Principle (conservation of energy in fluid flow), air accelerating over the cambered upper surface experiences lower static pressure than the slower-moving air beneath the wing.	By Newton's Third Law, the wing's angle of attack deflects airflow downward (downwash), producing an equal and opposite upward reaction force.
How is Angle of Attack (AOA) precisely defined in aerodynamics, and how does it differ from pitch attitude?	Angle of Attack is the acute angle between the wing's chord line (an imaginary straight line from the leading edge to the trailing edge) and the direction of the relative wind.	Pitch attitude is the angle between the aircraft's longitudinal axis and the natural horizon.
What causes an aerodynamic stall, and at what approximate Critical Angle of Attack does a typical general aviation airfoil stall?	A stall occurs when the wing exceeds its Critical Angle of Attack (typically ~16° to 18°), causing the smooth boundary-layer airflow over the upper surface to separate and become turbulent.	An airfoil always stalls at the exact same Critical AOA regardless of airspeed, weight, load factor, density altitude, or pitch attitude.
What is Induced Drag, how does it vary with airspeed, and what physical phenomenon creates it?	Induced drag is an inescapable byproduct of lift generation caused by high-pressure air beneath the wing curling around the wingtips into low-pressure air above, creating wingtip vortices that tilt the total lift vect...	It is inversely proportional to the square of airspeed (1/V^2) and is highest at slow airspeeds and high angles of attack.
What are the three types of Parasite Drag, and how does total parasite drag vary with airspeed?	1. Form Drag (pressure drag from aircraft shape and flow separation)	2. Skin Friction Drag (viscous shear within the boundary layer over rough surfaces); 3. Interference Drag (eddies occurring where components meet, such as wing roots and struts). Total parasite drag increases proportionally to the square of airspeed (V^2).
On the Total Drag curve, what is the significance of the point where Induced Drag equals Parasite Drag?	The intersection where Induced Drag equals Parasite Drag represents minimum total drag and the maximum Lift-to-Drag ratio (L/Dmax).	The airspeed corresponding to L/Dmax is the aircraft's Best Glide Speed (Vg), which yields the maximum horizontal glide distance per foot of altitude lost in calm wind.
How does Ground Effect alter the aerodynamic performance of an aircraft flying within one wingspan of the surface?	The ground interrupts the vertical development of wingtip vortices and reduces downwash, which decreases the induced angle of attack and dramatically lowers induced drag (by up to ~40% at a height of 1/10 wingspan). D...	during landing, it causes floating if excess airspeed is carried.
What are the three primary flight controls, the axes of rotation they govern, and the stability type associated with each axis?	1. Ailerons control Roll about the Longitudinal axis (Lateral stability)	2. Elevator/Stabilator controls Pitch about the Lateral axis (Longitudinal stability); 3. Rudder controls Yaw about the Vertical axis (Directional stability). All three axes intersect at the Center of Gravity (CG).
What causes Adverse Yaw during a roll entry, and what two engineering designs are commonly used to counteract it?	When rolling into a turn, the downward-deflected aileron on the rising wing generates more lift—and therefore more induced drag—than the upward-deflected aileron on the lowering wing, yawing the nose toward the outsid...	It is mitigated by Differential Ailerons (up-aileron deflects further than down-aileron) and Frise-Type Ailerons (the leading edge of the up-aileron protrudes below the wing into the airflow to create balancing parasite drag).
What are the four Left-Turning Tendencies experienced by a single-engine aircraft with a clockwise-rotating propeller (as viewed from the cockpit)?	1. Torque Reaction (Newton's 3rd Law rolls the aircraft left)	2. Corkscrewing / Spiraling Slipstream (propwash strikes the left side of the vertical tail); 3. P-Factor / Asymmetric Blade Effect (descending right blade has a higher AOA than ascending left blade at high pitch angles); 4. Gyroscopic Precession (pitching the nose down on a t...
How does Gyroscopic Precession act on a clockwise-rotating propeller when a tailwheel pilot raises the tail during the takeoff roll?	Any force applied to a spinning gyroscope manifests 90° ahead in the direction of rotation. Raising the tail (pitching down) applies a forward force at the top of the propeller disc	rotating 90° clockwise places the resultant forward force on the right side of the disc, producing a pronounced left yaw.

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Deck 2: National Airspace System (Classes A, B, C, D, E, G), VFR Weather Minimums & Sectional Charts (32 Cards — Basic)

What this deck covers: FAA National Airspace System classification, dimensions, pilot and equipment entry requirements, VFR visibility and cloud clearance minimums, Special VFR, speed limits, Special Use Airspace, airport signage/markings, visual glidepath indicators, and transponder squawk codes.

High-Yield Prompt / Question	Core Concept & Mechanism	Exam Application & Details
What are the vertical limits, operating rules, and altimeter setting requirements for Class A airspace?	Class A airspace extends from 18,000 feet MSL up to and including FL600 over the 48 contiguous states and Alaska (within 12 NM of the coast).	All operations must be conducted under Instrument Flight Rules (IFR) with an IFR clearance, an Instrument-rated pilot, and the altimeter set to standard pressure (29.92" Hg).
What are the typical dimensions, charting depiction, and ATC communication requirement to enter Class B airspace?	Class B surrounds the nation's busiest airports from the surface to 10,000 feet MSL in an 'upside-down wedding cake' configuration, depicted by solid blue lines on Sectional Charts.	To enter, the pilot must receive an explicit ATC clearance stating 'Cleared into the Class B airspace'—merely establishing two-way radio contact is NOT sufficient.
What are the VFR visibility and cloud clearance minimums inside Class B airspace, and why is 'Clear of Clouds' permitted there?	3 statute miles (SM) flight visibility and Clear of Clouds.	Because all aircraft inside Class B airspace (both IFR and VFR) are subject to positive ATC radar separation and explicit ATC clearances, the standard 500-below / 1,000-above / 2,000-horizontal cloud buffer is not required.
What is the Mode C / ADS-B Out Veil surrounding a Class B primary airport?	An airspace cylinder extending 30 nautical miles (NM) from the primary Class B airport from the surface up to 10,000 feet MSL (depicted by a thin solid magenta circle on Sectional Charts).	Within this veil, all aircraft must be equipped with an operable Mode C or Mode S altitude-encoding transponder and 14 CFR 91.225 ADS-B Out (unless flying an aircraft originally certificated without an engine-driven electrical system).
What are the standard vertical and lateral dimensions, charting depiction, and entry requirements for Class C airspace?	Class C typically consists of a 5 NM radius inner core from the surface to 4,000 feet AGL and a 10 NM radius outer shelf from 1,200 to 4,000 feet AGL, depicted by solid magenta lines.	Entry requires an operable two-way radio, Mode C transponder + ADS-B Out, and establishing two-way radio communication prior to entry.
For Class C and Class D airspace entry, what ATC response constitutes 'establishing two-way radio communications' versus being prohibited from entering?	Two-way radio communication is established if the controller responds to the initial radio call using the aircraft's specific callsign (even if the controller says '[Aircraft Callsign], standby').	If the controller responds only with 'Aircraft calling [Approach/Tower], standby' without stating the callsign, the pilot may NOT enter the airspace.
What are the standard dimensions, charting depiction, and VFR weather minimums for Class D airspace?	Class D extends from the surface to 2,500 feet AGL (converted to MSL and shown in a dashed blue box, e.g., [25] for 2,500 ft MSL) around airports with an operating control tower, depicted by a dashed blue line.	VFR minimums are 3 SM flight visibility and 500 feet below, 1,000 feet above, and 2,000 feet horizontal from clouds ('3-5-1-2').
When an airport's Class D or Class C control tower closes for the night, what does the surface airspace revert to?	It typically reverts to either Class E surface area (if continuous weather reporting and instrument approaches remain active) or Class G uncontrolled airspace, as specified in the Chart Supplement U.S.	(formerly A/FD).
How are the different base altitudes of Class E airspace depicted on an FAA VFR Sectional Chart?	1. Dashed magenta line: Class E begins at the surface	2. Shaded magenta vignette (feathered edge): Class E begins at 700 feet AGL (fading toward the 700 ft side); 3. Shaded blue vignette: Class E begins at 1,200 feet AGL adjacent to non-1,200 ft airspace; 4. No boundary shown: Class E begins at 1,200 feet AGL by default across mo...
Compare the VFR visibility and cloud clearance minimums in Class E airspace below 10,000 feet MSL versus at or above 10,000 feet MSL.	Below 10,000 feet MSL: 3 SM visibility, 500 feet below, 1,000 feet above, and 2,000 feet horizontal from clouds (3-5-1-2).	At or above 10,000 feet MSL (and more than 1,200 ft AGL): 5 SM visibility, 1,000 feet below, 1,000 feet above, and 1 statute mile horizontal from clouds (5-1-1-1) due to higher closure speeds of aircraft above the 250-knot speed limit.
What are the VFR weather minimums in Class G (uncontrolled) airspace during the Day vs. Night at or below 1,200 feet AGL?	Day at or below 1,200 feet AGL: 1 SM flight visibility and Clear of Clouds.	Night at or below 1,200 feet AGL: 3 SM flight visibility and 500 feet below, 1,000 feet above, and 2,000 feet horizontal from clouds (3-5-1-2). Exception: In an airport traffic pattern at night within 1/2 mile of the runway, 1 SM and Clear of Clouds is permitted if remaining b...
What are the VFR weather minimums in Class G airspace above 1,200 feet AGL, both below and above 10,000 feet MSL?	More than 1,200 feet AGL but less than 10,000 feet MSL: Day requires 1 SM visibility and 500 ft below, 1,000 ft above, 2,000 ft horizontal	Night requires 3 SM visibility and 500/1,000/2,000 ft. More than 1,200 feet AGL and at or above 10,000 feet MSL (Day or Night): 5 SM visibility and 1,000 ft below, 1,000 ft above, and 1 SM horizontal (5-1-1-1).

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Deck 3: Aircraft Flight Instruments (Pitot-Static, Gyroscopic), Engine Systems & Weight and Balance (32 Cards — Intermediate)

What this deck covers: Pitot-static flight instruments and blockage failure modes, V-speeds, altimetry and altitude types, gyroscopic instruments and magnetic compass errors, reciprocating engine operation, detonation vs. pre-ignition, constant-speed propellers, electrical systems, and aircraft weight and balance computations.

High-Yield Prompt / Question	Core Concept & Mechanism	Exam Application & Details
Which three flight instruments belong to the Pitot-Static system, and which pressure sources does each instrument use?	1. Airspeed Indicator (ASI): uses BOTH Pitot (ram/impact pressure) and Static pressure (calculates dynamic pressure = Pitot minus Static)	2. Altimeter: uses Static pressure only; 3. Vertical Speed Indicator (VSI): uses Static pressure only (via a calibrated capillary leak comparing instantaneous vs. delayed static pressure).
How does the Airspeed Indicator behave if BOTH the Pitot ram air inlet and the Pitot drain hole become completely blocked by ice?	With pressure trapped inside the pitot diaphragm, the Airspeed Indicator acts like an altimeter! During a climb, ambient static pressure around the diaphragm decreases, causing the trapped pitot diaphragm to expand an...	During a descent, it erroneously indicates decreasing airspeed.
How does the Airspeed Indicator behave if ONLY the Pitot ram air inlet is blocked, while the Pitot drain hole remains open?	The ram pressure trapped in the pitot line vents out through the open drain hole until pitot line pressure equalizes with ambient static pressure.	Consequently, the Airspeed Indicator drops to zero and remains at zero regardless of actual airspeed.
What happens to the Altimeter, VSI, and Airspeed Indicator if the external Static Port becomes completely blocked?	1. Altimeter freezes at the altitude where the blockage occurred	2. VSI freezes at zero (0 fpm); 3. Airspeed Indicator reads erroneously LOW during a climb (trapped static pressure is higher than actual ambient pressure, reducing differential expansion) and erroneously HIGH during a descent.
In an unpressurized aircraft, what happens to the Pitot-Static instruments when the Alternate Static Source is opened inside the cabin?	Because high-speed airflow around the exterior fuselage creates a slight Venturi effect, cabin air pressure is slightly LOWER than external ambient static pressure. When switching to the cabin alternate static source:...	2. Airspeed Indicator reads slightly FASTER than actual; 3. VSI momentarily indicates a CLIMB.
Define the V-speeds corresponding to the boundaries of the White Arc and Green Arc on the Airspeed Indicator.	White Arc (flap operating range): Lower limit is Vso (stall speed in the landing configuration with gear and flaps extended)	Upper limit is Vfe (maximum flap extended speed). Green Arc (normal operating range): Lower limit is Vs1 (stall speed in a specified clean configuration); Upper limit is Vno (maximum structural cruising speed).
What do the Yellow Arc and Red Radial Line (Vne) represent on the Airspeed Indicator, and what are Vlo and Vle?	Yellow Arc (caution range, from Vno to Vne): operations permitted only in smooth air and with caution. Red Radial Line is Vne (Never-Exceed Speed), above which structural damage or aeroelastic flutter may occur. Vlo i...	Vle is the maximum speed at which the aircraft can be safely flown with the landing gear already extended.
What are the five distinct types of altitude used in aviation: Indicated, Pressure, Density, True, and Absolute?	1. Indicated Altitude: read directly from the altimeter when set to the current local altimeter setting	2. Pressure Altitude: height above the standard datum plane (29.92" Hg); 3. Density Altitude: pressure altitude corrected for nonstandard temperature; 4. True Altitude: actual vertical height above Mean Sea Level (MSL); 5. Absolute Altitude: actual vertical height above the te...
Explain the altimetry rule 'From High to Low, or Hot to Cold, look out below!'	When flying from a region of High atmospheric pressure to Low pressure without resetting the altimeter (or into Colder-than-standard air whe	When flying from a region of High atmospheric pressure to Low pressure without resetting the altimeter (or into Colder-than-standard air where pressure levels are compressed closer together), the aircraft's True Altitude is LOWER than its Indicated Altitude, placing the aircra...
How much does Indicated Altitude change for each 0.10" Hg change in the Kollsman window setting, and how do you calculate Pressure Altitude?	Each 0.10" Hg change in the Kollsman window changes indicated altitude by approximately 100 feet (1.00" Hg = 1,000 feet).	Pressure Altitude = (29.92 - Current Altimeter Setting) * 1,000 + Field Elevation. For example, at a 28.92" Hg setting on a 2,000-foot runway, Pressure Altitude is 3,000 feet.
Compare Indicated Airspeed (IAS), Calibrated Airspeed (CAS), Equivalent Airspeed (EAS), True Airspeed (TAS), and Groundspeed (GS).	IAS: direct reading from the ASI.	CAS: IAS corrected for instrument and position/installation error (greatest at high AOA / slow speeds). EAS: CAS corrected for adiabatic compressibility at high speeds/altitudes. TAS: CAS/EAS corrected for nonstandard altitude and temperature (increases ~2% per 1,000 feet of a...
What are the two fundamental physical properties of a spinning gyroscope, and which property drives the Turn Coordinator vs. the Attitude/Heading Indicators?	1.	Rigidity in Space (a spinning rotor resists any force attempting to tilt its plane of rotation) — the foundation of the Attitude Indicator and Heading Indicator (Directional Gyro). 2. Precession (an applied tilting force causes the rotor to tilt 90° ahead in the direction of r...

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Deck 4: Aviation Weather (METAR, TAF, PIREP, Fronts, Thunderstorms, Icing & Wind Shear) (32 Cards — Intermediate)

What this deck covers: Aviation meteorology and weather products for FAA Private, Instrument, Commercial, and Part 107 exams covering the standard atmosphere, pressure systems, stability, fog types, weather fronts, thunderstorm stages and microbursts, structural icing, mountain waves, and decoding METARs, TAFs, PIREPs, AIRMETs, SIGMETs, and Winds Aloft.

High-Yield Prompt / Question	Core Concept & Mechanism	Exam Application & Details
What are the sea-level pressure, temperature, and standard adiabatic lapse rate in the International Standard Atmosphere (ISA), and what drives all weather?	At sea level, ISA standard temperature is 15°C (59°F) and standard pressure is 29.92" Hg (1013.2 hPa / mb).	The standard temperature lapse rate in the troposphere is approximately 2°C (3.5°F) per 1,000 feet of altitude gain. Uneven solar heating of the Earth's surface is the primary driving force behind all atmospheric circulation and weather.
How do the Pressure Gradient Force, Coriolis Force, and Surface Friction interact to determine wind direction around High and Low pressure systems in the Northern Hemisphere?	Pressure Gradient Force pushes air directly from High to Low pressure perpendicular to isobars. Above ~2,000 ft AGL, Coriolis Force deflects moving air to the right in the Northern Hemisphere until wind flows parallel...	counterclockwise/inward around a Low). Within 2,000 ft of the surface, surface friction slows the wind, reducing Coriolis deflection so wind crosses isobars at ~30° toward lower pressure.
What does Buys Ballot's Law state for a pilot flying in the Northern Hemisphere?	If you stand with your back to the wind in the Northern Hemisphere, the area of lower atmospheric pressure is on your left and higher pressure is on your right.	In flight, if an aircraft experiences a left crosswind (drifting to the right), it is flying toward a Low pressure system ('High to Low, look out below').
Compare the clouds, turbulence, precipitation, and surface visibility characteristic of a Stable Atmosphere versus an Unstable Atmosphere.	Stable Air: Stratiform (layered) clouds, smooth air (little or no turbulence), steady continuous precipitation (drizzle or light rain), and poor/hazy surface visibility due to trapped pollutants and moisture.	Unstable Air: Cumuliform (vertically developed) clouds, rough convective turbulence, showery precipitation, and good surface visibility outside of showers.
How do you estimate the base of cumuliform clouds in feet AGL using surface temperature and dewpoint?	Divide the temperature-dewpoint spread by the convergence rate of 2.5°C (or 4.4°F) per 1,000 feet, then multiply by 1,000: Cloud Base (ft AGL) = [(Temperature °C - Dewpoint °C) / 2.5] * 1,000.	For example, if surface temperature is 25°C and dewpoint is 15°C, the spread is 10°C: (10 / 2.5) * 1,000 = 4,000 feet AGL.
What is a Temperature Inversion, how does it form near the surface on clear nights, and what hazards does it pose to pilots?	A temperature inversion is an atmospheric layer where temperature increases with altitude instead of decreasing.	Radiation inversions form on clear, calm nights as the ground radiates heat into space and chills the lowest air layer. Inversions trap fog, smoke, and haze beneath a stable lid (reducing visibility) and frequently produce strong low-level wind shear across the inversion bound...
Compare the formation conditions for Radiation Fog versus Advection Fog.	Radiation Fog (ground fog) forms on clear, calm nights over land with a small temperature-dewpoint spread as terrestrial radiation cools the ground	slight wind (<5 knots) deepens it, while stronger winds disperse it. Advection Fog forms when warm, moist air moves horizontally over a colder surface (e.g., Pacific coastal fog) and requires wind (up to 15 knots) to form and persist.
Compare Upslope Fog, Steam Fog, and Frontal (Precipitation-Induced) Fog.	Upslope Fog forms when moist, stable air is forced up sloping terrain by wind, cooling adiabatically to its dewpoint.	Steam Fog (sea smoke) forms when very cold, dry air moves over much warmer water, causing rapid evaporation that immediately condenses and is accompanied by low-level turbulence and icing. Precipitation Fog forms when warm rain falls through a layer of cooler, nearly saturated...
Compare the slope, speed, cloud sequence, and weather hazards of a Cold Front versus a Warm Front.	Cold Front: Steep slope, moves rapidly, forces warm air violently upward along a narrow band, producing towering cumulus, cumulonimbus, squall lines, heavy showery precipitation, gusty shifting winds, followed by rapi...	Warm Front: Shallow slope, moves slowly, warm moist air slides gradually up over retreating cold air, producing a wide band of stratiform clouds (cirrus -> altostratus -> nimbostratus), steady rain, low ceilings, fog, and freezing rain.
What are the three atmospheric ingredients required for a thunderstorm to form, and what are the three stages of a thunderstorm's lifecycle?	Three required ingredients: 1. Sufficient water vapor (moisture)	2. An unstable lapse rate; 3. A lifting action (frontal, orographic, or thermal heating). Three lifecycle stages: 1. Cumulus Stage (continuous updrafts only); 2. Mature Stage (begins when precipitation reaches the surface, creating strong downdrafts alongside updrafts—greatest...
What is a Microburst, how long does it typically last, and what aerodynamic sequence does an aircraft experience when penetrating one on final approach?	A microburst is an intense, small-scale convective downdraft (<4 km wide) that hits the ground and spreads out horizontally, lasting 5 to 15 minutes with downdrafts up to 6,000 fpm and horizontal wind shear up to 45–8...	2. Intense downdraft forces rapid sink; 3. Rapid shift to a strong tailwind causes a sudden catastrophic drop in IAS and lift near the ground.
What are the two mandatory atmospheric conditions required for Structural Aircraft Icing, and how do Clear Ice, Rime Ice, and Mixed Ice differ?	Structural icing requires both visible moisture (clouds, rain, drizzle, fog) and freezing or subfreezing temperatures (0°C or colder) at the aircraft skin.	Clear Ice forms in large supercooled water droplets (cumuliform clouds or freezing rain, 0°C to -10°C) that spread back before freezing into a heavy, tenacious, hard-to-remove sheet. Rime Ice forms when small supercooled droplets (stratiform clouds, -15°C to -20°C) freeze inst...

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Deck 5: Federal Aviation Regulations (14 CFR Part 61 & 91), Right-of-Way, Fuel Reserves & Aeromedical Factors (32 Cards — Advanced)

What this deck covers: FAA 14 CFR Part 61 and Part 91 regulations covering pilot currency, medical certificates, Private vs. Commercial privileges, required aircraft documents (ARROW) and inspections (AVIATE), required VFR day/night equipment (TOMATOFLAMES/FLAPS), minimum safe altitudes, fuel reserves, oxygen rules, right-of-way, and aeromedical physiology/illusions.

High-Yield Prompt / Question	Core Concept & Mechanism	Exam Application & Details
Under 14 CFR 61.56 and 61.57, what are the requirements for a Flight Review and for VFR Day vs. Night passenger-carrying currency?	Flight Review (61.56): At least 1 hour of ground training and 1 hour of flight training with an authorized instructor within the preceding 24 calendar months.	Passenger Currency (61.57): 3 takeoffs and 3 landings as sole manipulator of the controls in the same category, class, and type (if required) within the preceding 90 days. For Night passenger currency (from 1 hour after sunset to 1 hour before sunrise) or in a tailwheel airpla...
Compare the duration of First-Class, Second-Class, and Third-Class FAA Medical Certificates for pilots under age 40 versus age 40 and older.	Under Age 40: First-Class (ATP privileges) is valid for 12 calendar months	Second-Class (Commercial privileges) is valid for 12 calendar months; Third-Class (Private/Recreational/CFI privileges) is valid for 60 calendar months. Age 40 and Older: First-Class is valid for 6 calendar months; Second-Class is valid for 12 calendar months; Third-Class is v...
What are the aircraft, operating, and medical requirements to fly under FAA BasicMed (14 CFR Part 68)?	Pilot must hold a valid U.S.	driver's license, have held a valid FAA medical certificate at any point after July 14, 2006 (not revoked/suspended), complete a CMEC physical exam with a state-licensed physician every 48 months, and complete an online aeromedical course every 24 calendar months. Aircraft/fli...
Under 14 CFR 61.113, what is the 'Pro Rata Share' rule for a Private Pilot carrying passengers, and what are the exceptions where a Private Pilot may be compensated?	A Private Pilot may not act as PIC for compensation or hire, nor carry passengers or property for compensation.	When carrying passengers on a flight where the pilot and passengers share a 'bona fide common purpose,' the pilot must pay at least the pro rata (equal) share of only the direct operating expenses (fuel, oil, airport expenditures, or rental fees). Exceptions include: flight in...
What does 'Holding Out' mean in Commercial Aviation, and distinguish between Common Carriage (Part 121/135) and Private Carriage?	'Holding Out' is communicating to the public (via advertising, websites, signs, word-of-mouth reputation, or third-party agents) a willingness to transport persons or property from place to place for compensation.	Common Carriage consists of four elements: (1) holding out of a willingness to (2) transport persons or property (3) from place to place (4) for compensation or hire—and requires an FAA Air Carrier or Commercial Operator Certificate (Part 119/121/135). A Commercial Pilot certi...
What documents must be carried aboard the aircraft at all times during flight (mnemonic ARROW), and what must the pilot carry on their person?	Aircraft Documents (ARROW): A — Airworthiness Certificate (displayed at cabin entrance)	R — Registration Certificate (valid for 7 years); R — Radio Station License (required only for international flights outside the U.S.); O — Operating Limitations / FAA-approved Airplane Flight Manual or POH; W — Weight and Balance data & current equipment list. Pilot Documents...
Summarize the required aircraft maintenance inspections using the mnemonic AVIATE and state the validity interval for each.	A — Annual Inspection: every 12 calendar months for all aircraft	V — VOR Check: every 30 days (required for IFR flight only); I — 100-Hour Inspection: every 100 hours of time in service if used to carry any person for hire or to give flight instruction for hire where the instructor provides the aircraft; A — Altimeter & Pitot-Static system ...
Under what circumstances may a 100-Hour Inspection limit be exceeded, and how does this affect the time when the next 100-Hour Inspection is due?	The 100-hour limitation may be exceeded by not more than 10 hours ONLY while en route to reach a place where the inspection can be done.	However, the excess time used to reach that maintenance facility MUST be included in computing the next 100 hours of time in service (e.g., if inspected at 107 hours, the next 100-hour inspection is due at 200 hours, not 207 hours). An Annual Inspection can substitute for a 10...
When must an Emergency Locator Transmitter (ELT) battery be replaced or recharged under 14 CFR 91.207?	The ELT battery must be replaced (or recharged if rechargeable): 1. After the transmitter has been in use for more than 1 cumulative hour	OR 2. When 50% of its useful life (or charge) has expired, as established by the transmitter manufacturer.
What is a Special Flight Permit (Ferry Permit), and where is it obtained?	A Special Flight Permit may be issued for an aircraft that does not currently meet all applicable airworthiness requirements (e.g., an expired Annual Inspection) but is capable of safe flight, allowing it to be flown ...	It is obtained from the local FAA Flight Standards District Office (FSDO) or an authorized Designated Airworthiness Representative (DAR).
Under 14 CFR 91.205(b), what instruments and equipment are required for VFR Day flight in powered civil aircraft (mnemonic TOMATOFLAMES)?	T — Tachometer (for each engine)	O — Oil pressure gauge (for each engine using pressure system); M — Manifold pressure gauge (for each altitude engine); A — Altimeter; T — Temperature gauge (for each liquid-cooled engine); O — Oil temperature gauge (for each air-cooled engine); F — Fuel gauge indicating quant...
Under 14 CFR 91.205(c), what additional equipment is required for VFR Night flight beyond VFR Day requirements (mnemonic FLAPS)?	All VFR Day equipment (TOMATOFLAMES) plus: F — Fuses (one spare set of fuses, or three spare fuses of each kind required, accessible to the pilot in flight—not applicable if equipped with circuit breakers)	L — Landing light (required ONLY if the aircraft is operated for hire); A — Anticollision light system (red or white rotating beacon/strobes); P — Position (navigation) lights (red on left wingtip, green on right wingtip, white on tail); S — Source of electrical energy (altern...

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Deck 6: Instrument Flying (IFR Holds, Approaches, ILS/RNAV, Lost Comms) & Part 107 sUAS Drone Rules (32 Cards — Advanced)

What this deck covers: FAA Instrument Rating (IFR) and Remote Pilot (14 CFR Part 107 sUAS) exam mastery covering IFR currency (66HIT), the 1-2-3 alternate rule, holding entries and speed limits, enroute IFR altitudes, ILS and RNAV/GPS approaches, descent below MDA/DA (91.175), IFR lost communications (AVEF/MEA), and Part 107 drone operational limits, airspace, categories over people, and accident reporting.

High-Yield Prompt / Question	Core Concept & Mechanism	Exam Application & Details
Under 14 CFR 61.57(c), what are the requirements for Instrument Rating Currency (mnemonic 66HIT), and what happens if a pilot's IFR currency lapses?	To act as PIC under IFR or in weather less than VFR minimums, within the preceding 6 calendar months the pilot must have logged (in actual or simulated instrument conditions in the same aircraft category or an approve...	2. Holding procedures and tasks; 3. Intercepting and tracking courses through the use of navigation electronic systems. If currency lapses, the pilot has a 6-calendar-month grace period during which they may regain currency by flying with an appropriately rated Safety Pilot in...
What is the IFR '1-2-3 Rule' (14 CFR 91.169) determining whether an Alternate Airport must be listed on an IFR flight plan, and what are the Standard Alternate Weather Minimums?	An alternate airport is NOT required if the destination has a published instrument approach and for from 1 hour before to 1 hour after the estimated time of arrival (ETA), forecast weather reports at least a 2,000-foo...	2. Non-Precision Approach: 800-foot ceiling and 2 SM visibility; 3. No instrument approach at alternate: ceiling and visibility allowing descent from MEA, approach, and landing under basic VFR.
What is the minimum fuel reserve requirement for an IFR flight in an airplane under 14 CFR 91.167?	Enough fuel (considering weather reports, forecasts, and wind) to: 1. Complete the flight to the first airport of intended landing	2. Fly from that airport to the alternate airport (ONLY if an alternate airport is required by the 1-2-3 rule); and 3. Fly after that for 45 minutes at normal cruising speed (30 minutes for helicopters under IFR).
Define the five IFR enroute altitudes: MEA, MOCA, MORA, MCA, and MRA.	1. MEA (Minimum Enroute Altitude): lowest published altitude between radio fixes that ensures both acceptable navigational signal coverage AND obstacle clearance (1,000 ft in non-mountainous areas	2,000 ft in designated mountainous areas). 2. MOCA (Minimum Obstruction Clearance Altitude): marked with *, guarantees obstacle clearance along the entire route segment, but guarantees NAVAID signal reception ONLY within 22 NM of the VOR. 3. MORA (Minimum Off-Route Altitude)...
What is the standard IFR climb gradient required on departure unless otherwise specified on an Obstacle Departure Procedure (ODP) or SID?	The standard IFR departure design assumes the aircraft crosses the departure end of the runway (DER) at least 35 feet AGL, makes no turns below 400 feet AGL, and climbs at a minimum gradient of 200 feet per nautical m...	To convert climb gradient (ft/NM) to vertical speed (fpm): Climb Rate (fpm) = Groundspeed (knots) * [Climb Gradient (ft/NM) / 60]. For example, 200 ft/NM at 90 knots groundspeed requires 90 * (200 / 60) = 300 fpm.
What are the standard timing, turn direction, and FAA maximum airspeed limits for an IFR Holding Pattern?	Standard holding uses RIGHT-hand turns (non-standard uses left turns). Inbound leg timing is 1 minute at or below 14,000 feet MSL, and 1.5 minutes above 14,000 feet MSL (or a specified DME/RNAV distance). Maximum Hold...	2. 6,001 to 14,000 feet MSL: 230 KIAS; 3. 14,001 feet MSL and above: 265 KIAS. Pilots must initiate speed reduction within 3 minutes prior to crossing the holding fix.
How are the three FAA-recommended Holding Pattern Entry sectors (Direct, Teardrop, Parallel) determined around the holding fix?	Draw a line through the holding fix skewed 70° from the inbound course toward the holding side: 1. Direct Entry (180° sector): approaching from behind the fix	cross the fix and turn directly outbound into the hold. 2. Teardrop / Offset Entry (70° sector on the holding side): cross the fix, turn to a heading 30° into the holding pattern for 1 minute, then turn in the holding direction to intercept the inbound course. 3. Parallel Entr...
What are the components of a full Instrument Landing System (ILS) approach, and what are the widths of a Localizer vs. a VOR course?	An ILS provides both lateral and vertical precision guidance: 1.	Localizer (VHF 108.10–111.95 MHz odd tenths): provides lateral course guidance with full-scale deflection of approximately 2.5° off centerline (total beam width ~5°, which is 4 times more sensitive than a VOR's +/-10° / 20° total course width). 2. Glideslope (UHF): provides a ...
What is the difference between a Decision Altitude / Decision Height (DA/DH) on a Precision/APV approach and a Minimum Descent Altitude (MDA) on a Non-Precision approach?	DA/DH is used on approaches with vertical guidance (ILS, LPV, LNAV/VNAV): upon reaching DA/DH without the required visual references, the pilot must immediately initiate the missed approach, though the aircraft's mome...	MDA is used on non-precision approaches without vertical guidance (LNAV, LOC, VOR): the aircraft may NEVER descend below the MDA unless the visual requirements of 91.175 are met—it represents a hard floor where the aircraft must level off until reaching the Missed Approach Poi...
Compare the four lines of minimums typically found on an RNAV (GPS) approach chart: LPV, LNAV/VNAV, LNAV+V, and LNAV.	1. LPV (Localizer Performance with Vertical Guidance): requires WAAS (Wide Area Augmentation System) GPS	angular lateral/vertical sensitivity scales identically to an ILS down to a DA as low as 200 ft AGL. 2. LNAV/VNAV: WAAS or baro-VNAV vertical guidance down to a DA. 3. LNAV+V: uses non-precision LNAV MDA minimums, but the WAAS navigator provides an advisory vertical glidepath ...
Under 14 CFR 91.175(c), what three conditions must be simultaneously satisfied for a pilot to descend below MDA or continue below DA/DH on an instrument approach?	1. The aircraft is continuously in a position from which a descent to a landing on the intended runway can be made at a normal rate of descent using normal maneuvers	2. The flight visibility is NOT less than the visibility prescribed in the standard instrument approach procedure being used; AND 3. At least one of the 10 specified visual references for the intended runway is distinctly visible and identifiable to the pilot (e.g., ALS, thres...
Under 14 CFR 91.175, how far may a pilot descend if ONLY the Approach Light System (ALS) is visible at DA/MDA?	If the pilot sees only the white Approach Light System (ALS) and not the runway itself, the pilot may not descend below 100 feet above the T	If the pilot sees only the white Approach Light System (ALS) and not the runway itself, the pilot may not descend below 100 feet above the Touchdown Zone Elevation (TDZE) unless the RED terminating bars or the RED side row bars (typical of ALSF-1 and ALSF-2 systems) are also d...

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Complete 6-Deck Quick-Access Directory

Deck #	Deck Title	Level	Cards	Direct Practice Link
Deck 1	Aerodynamics, Four Forces, Stalls/Spins, Load Factor & Flight Controls	basic	32	Open Deck 1 →
Deck 2	National Airspace System (Classes A, B, C, D, E, G), VFR Weather Minimums & Sectional Charts	basic	32	Open Deck 2 →
Deck 3	Aircraft Flight Instruments (Pitot-Static, Gyroscopic), Engine Systems & Weight and Balance	intermediate	32	Open Deck 3 →
Deck 4	Aviation Weather (METAR, TAF, PIREP, Fronts, Thunderstorms, Icing & Wind Shear)	intermediate	32	Open Deck 4 →
Deck 5	Federal Aviation Regulations (14 CFR Part 61 & 91), Right-of-Way, Fuel Reserves & Aeromedical Factors	advanced	32	Open Deck 5 →
Deck 6	Instrument Flying (IFR Holds, Approaches, ILS/RNAV, Lost Comms) & Part 107 sUAS Drone Rules	advanced	32	Open Deck 6 →

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