Applicability & definitions 107.1–107.3

• Part 107 covers civil small unmanned aircraft systems: less than 55 lb total takeoff weight, including everything on board or attached.
• sUAS = the aircraft plus control station, links, and support equipment. sUA = the aircraft alone.
• Remote pilot in command (RPIC): directly responsible for and the final authority over the operation.
• Person manipulating the controls: may fly under the direct supervision of an RPIC who can immediately take over.
• Visual observer (VO): optional crewmember who helps see and avoid. Not required, but if used must be able to communicate with the RPIC.
• Part 107 does not cover: recreational flyers under the exception for limited recreational operations (49 USC 44809), amateur rocketry, moored balloons/kites, public aircraft operations flown under a COA, air carrier operations.

Operating limitations 107.51 & friends — memorize

• Visual line of sight (107.31): the RPIC and person manipulating controls must be able to see the aircraft with unaided vision throughout — enough to know its location, attitude, altitude and direction, see and avoid other aircraft, and confirm it doesn't endanger anyone. Corrective lenses are allowed; binoculars, telephoto and FPV goggles are not (a VO or spotter can enable FPV, but the RPIC/VO must maintain unaided VLOS).
• One aircraft at a time (107.35): a person may not operate or act as RPIC for more than one sUA simultaneously.
• Right of way (107.37): yield to all other aircraft. Never operate so close to another aircraft as to create a collision hazard.
• Moving vehicles (107.25): no operating from a moving aircraft ever; from a moving land or waterborne vehicle only over a sparsely populated area (or over water). Carrying property for compensation from a moving vehicle is prohibited.
• Hazardous operation (107.23): no dropping an object in a way that creates undue hazard to persons or property. Careless or reckless operation is prohibited — that's the catch-all the FAA enforces with.
• Hazardous materials (107.36): carrying hazmat is prohibited — and this section cannot be waived.
• Structures: the 400 ft AGL ceiling extends to 400 ft above a structure's uppermost limit when flying within a 400 ft radius of it — that's how tower and antenna inspections are legal.

Night & twilight operations 107.29

• Night flight is allowed without a waiver if the aircraft has anti-collision lighting visible for at least 3 statute miles with a flash rate sufficient to avoid collision.
• Same lighting requirement applies during civil twilight (the 30 minutes before official sunrise and after official sunset, except in Alaska).
• The RPIC must have completed the initial knowledge test or recurrent training that covers night operations — the current curriculum includes it.
• Preflight for night must include the lighting, and the crew briefing should cover reduced depth perception and how the site looks in the dark.

Operations over human beings 107 Subpart D — 107.100–107.165

Default rule: you may not fly over a person who is not directly participating, not under a covered structure, and not inside a stationary covered vehicle — unless the aircraft qualifies for a category.

Operations over moving vehicles 107.145

• Category 1 and 2 aircraft may operate over moving vehicles.
• Category 3 may only do so within a closed- or restricted-access site where everyone inside has been notified.
• Category 4 may, subject to its operating limitations.
• No sustained flight over moving vehicles unless the operation is inside such a site or the people in the vehicles are participants.

Remote ID 14 CFR Part 89

Nearly every drone that requires registration must be able to broadcast Remote ID. Three ways to comply:

Broadcast message contents: aircraft ID (serial or session ID); the UA's latitude, longitude, geometric altitude and velocity; the control station's latitude, longitude and geometric altitude (standard RID) or the takeoff location (broadcast module); a time mark; and emergency status. Broadcast is over unlicensed radio spectrum — anyone with a receiver can see it. No internet connection is required.

Registration & marking 107.13, Part 48

• Register at FAA DroneZone. Part 107 aircraft register individually — $5 each, valid 3 years, and regardless of weight. The 0.55 lb exemption applies only to aircraft flown exclusively under the recreational exception (49 USC 44809); a 249 g drone flown for work still has to be registered.
• You must be 13+ to register; owner must be a U.S. citizen or permanent resident.
• The registration number must be legible on the exterior surface of the aircraft.
• Proof of registration must be available to authorities during operation (paper or electronic).
• Registration status changes (sale, destruction, address change) must be reported to the FAA.

Accident reporting 107.9 — classic exam question

Alcohol & drugs 107.27, 91.17, 91.19

• No operating within 8 hours of consuming alcohol ("8 hours bottle to throttle").
• No operating with a blood alcohol concentration of 0.04 or greater.
• No operating while under the influence of any drug that affects faculties in a way contrary to safety — that includes legal prescriptions and over-the-counter antihistamines.
• Refusing a test or a conviction for a drug/alcohol offense is grounds for denial or revocation of the certificate.

Preflight & condition for safe operation 107.15, 107.49

• No airworthiness certificate is required, but the RPIC must determine the sUAS is in a condition for safe operation before and during flight, and must discontinue the flight if it isn't.
• Required preflight actions: assess the operating environment (local weather, airspace and flight restrictions, location of persons and property, other hazards); brief participants on operating conditions, emergency procedures, contingencies, roles and hazards; verify all links work; confirm sufficient power for the intended flight plus reserve; verify objects attached or carried are secure and don't affect flight characteristics or controllability.

Waivers & authorizations 107.200, 107.205

Apply through FAA DroneZone (Certificate of Waiver, or airspace authorization). Show how you'll achieve an equivalent level of safety. Apply well in advance — 90 days is the FAA's recommended lead time.

Carriage of property for compensation no single section — 107.25, 107.31 + air carrier limits

• Allowed under Part 107, with conditions: total weight of aircraft plus payload stays under 55 lb.
• The flight must be entirely within the boundaries of a single state — no interstate transport, none between Hawaiian islands, none within the District of Columbia.
• No carriage of property for compensation from a moving vehicle or aircraft.
• No hazardous materials.

In-flight emergency & inspection authority 107.21, 107.7

• 107.21: in an in-flight emergency the RPIC may deviate from any rule in Part 107 to the extent necessary to meet that emergency. If asked by the Administrator, you must send a written report of the deviation.
• 107.7: on request you must present your certificate, registration and any waiver, and make the sUAS available for inspection or testing, to the FAA, NTSB, TSA or any federal, state or local law enforcement officer.
• The FAA may test or re-examine a certificate holder at any time if there's reason to question qualifications.

Other rules that show up easy points

• ATC transponders (107.52) and ADS-B Out (107.53) are prohibited on sUAS under Part 107 unless otherwise authorized by the Administrator — they would clutter the system.
• No sUA may be operated in a manner that interferes with operations and traffic patterns at any airport, heliport or seaplane base.
• Local and state laws may add restrictions (privacy, trespass, park rules), but only the FAA regulates the airspace itself.
• Automated or autonomous flight is permitted, but a remote pilot must always be able to take direct control or otherwise terminate flight.

The classes, as a remote pilot sees them UA.II.A

Getting authorization 107.41 — LAANC & DroneZone

• Controlled airspace (B, C, D, and E to the surface) requires prior ATC authorization. You cannot call the tower and get verbal permission — the tower isn't the approving authority.
• LAANC (Low Altitude Authorization and Notification Capability) gives near-real-time approval through an FAA-approved app, up to the altitude ceilings published on the UAS Facility Maps (UASFM).
• UASFM grids show the maximum altitude the FAA will auto-approve in each square — often 400, 300, 200, 100, or 0 ft. A 0-ft grid means no automatic approval; you must apply through DroneZone for further coordination, which takes ~30–90 days.
• LAANC also handles further coordination requests and gives you a confirmation you must have available during flight.
• Recreational flyers also use LAANC, but under a different set of fixed altitudes — don't confuse the two on the test.

Basic weather minimums UA.II.B — the same in every class

Special use airspace know what each one means

Temporary Flight Restrictions 91.137–91.145, 99.7

• TFRs are published by NOTAM, not printed on sectionals. Check them every flight — tfr.faa.gov, a briefing app, or Flight Service at 1-800-WX-BRIEF.
• Common triggers: disasters and hazards, aerial demonstrations and airshows, presidential and VIP movement, space operations, firefighting.
• Stadium TFR: 3 NM radius, up to 3,000 ft AGL, from one hour before to one hour after the event, for MLB, NFL, NCAA Division I football, and major NASCAR races at stadiums seating 30,000 or more.
• Washington DC has a permanent Special Flight Rules Area (SFRA) with a 15 NM inner Flight Restricted Zone (FRZ) — drones are effectively banned inside the FRZ.

NOTAMs & sources UA.II.B

• NOTAM = Notice to Air Missions. Categories you may see: NOTAM (D) for distant dissemination, FDC NOTAMs for regulatory items including TFRs and chart changes, and pointer, military and international NOTAMs.
• Get them from Flight Service (1-800-WX-BRIEF), notams.aim.faa.gov, or an EFB/briefing app.
• Preflight familiarization also means checking for local flight restrictions, obstacles and the location of people and property — the FAA treats "I didn't know about the TFR" as a preflight failure.

Potential flight hazards near airports UA.II.B

• Manned aircraft are lowest and slowest near airports — that's where you're most likely to conflict. Stay clear of approach and departure paths and traffic patterns even when you're legally authorized to be there.
• Wake turbulence: wingtip vortices sink and drift downwind; a light sUAS can be flipped by them. Avoid the area behind and below departing or arriving heavy aircraft.
• Rotorcraft generate strong downwash and often operate off-pattern at low altitude.
• Laser illumination of an aircraft is a federal crime; if your aircraft or crew is illuminated, report it to ATC or the FAA.
• Unlit obstacles: towers, guy wires, cranes, power lines — guy wires are nearly invisible on camera. Survey the site on foot.

Line and color decoder the six patterns that matter

The airport data block read it top to bottom

Symbols worth memorizing testing supplement legend

Scale, distance and position UA.II.A

• Sectional charts are drawn at 1:500,000. VFR terminal area charts are 1:250,000 and show more detail around Class B.
• Latitude runs east–west lines and is measured north/south; longitude runs north–south and is measured east/west. Tick marks along the lines are in minutes; 1 minute of latitude = 1 nautical mile.
• Use the scale bar in the chart margin or the latitude ticks to estimate distance — a common question format is "how far is X from Y".
• Chart altitudes and runway headings use magnetic north; the isogonic line (dashed magenta) gives the variation.

Sources of weather UA.III.A

• aviationweather.gov (Aviation Weather Center) — METARs, TAFs, graphical forecasts.
• Flight Service: 1-800-WX-BRIEF for a standard, abbreviated or outlook briefing. A standard briefing is the full picture; an abbreviated one updates or fills a gap; an outlook is for a flight 6+ hours away.
• ASOS/AWOS — automated surface/weather observing systems at the field, broadcast on a discrete frequency or by phone. This is your best source for conditions right where you're launching.
• Only an official source counts for planning. A weather app on your phone is a supplement, not a briefing.
• Remember that airport observations are taken at the field — microclimates a few miles away can differ, and sUAS fly in the lowest, most turbulent layer no observation describes well.

Decoding a METAR aviation routine weather report · ~hourly

METAR shorthand the codes, in the order they are written

Report abbreviations around the weather group everything else in the string

Decoding a TAF terminal aerodrome forecast

• Issued four times a day, generally valid for 24 hours (some 30), and applies within about 5 statute miles of the airport.
• Header format: TAF KBOS 271120Z 2712/2812 — issued the 27th at 1120Z, valid from the 27th at 1200Z to the 28th at 1200Z.
• Change groups: FM (rapid change at that time, replaces everything after), TEMPO (temporary, less than an hour at a time and less than half the period), BECMG (gradual change), PROB30/40 (probability of the condition occurring).
• Winds in a TAF, like a METAR, are true north. Winds given by a tower or ATIS over the radio are magnetic.

Atmosphere fundamentals the numbers behind the questions

• Air moves from high to low pressure. Around a high it flows clockwise and outward (descending, stable, generally good weather); around a low it flows counterclockwise and inward (rising air, clouds, precipitation).
• The three ingredients for any weather: uneven heating of the Earth's surface, atmospheric pressure differences, and the Coriolis effect from the Earth's rotation.
• Density altitude = pressure altitude corrected for non-standard temperature. High, hot and humid all raise density altitude, thinning the air. Thin air means less rotor thrust, longer takeoff, weaker climb and shorter endurance — the single most-tested performance concept.

Stability tells you what kind of day it is

A temperature inversion is warm air sitting above cool air — it caps the atmosphere, trapping haze, smoke and pollutants, and it commonly forms on clear, calm nights. Expect poor visibility at the surface at dawn.

Moisture, fog and clouds UA.III.B

• Clouds and fog form when the temperature and dew point converge and the air is cooled to saturation with condensation nuclei present. Watch the METAR spread: within 2–3°C is your warning.
• Radiation fog — clear, calm night, ground cools; classic dawn fog in low areas.
• Advection fog — moist air moves horizontally over a cooler surface; coastal, and it needs wind so it can persist all day.
• Upslope fog — moist stable air pushed up rising terrain.
• Steam fog — cold air over warm water; comes with low-level turbulence.
• Precipitation-induced fog — warm rain falling into cool air.
• The base of cumulus clouds can be estimated: divide the temperature/dew point spread in °C by 2.5 and multiply by 1,000 to get feet AGL.

Thunderstorms & wind shear the ones that will destroy the aircraft

• Three ingredients: sufficient moisture, an unstable lapse rate, and a lifting action.
• Three stages: cumulus (updrafts building), mature (precipitation at the surface, updrafts and downdrafts — the most hazardous stage), dissipating (downdrafts dominate, anvil top).
• Never fly within 20 NM of a thunderstorm. Gust fronts run far ahead of the visible storm.
• Microburst: a violent, concentrated downdraft — downdrafts to 6,000 fpm, horizontal winds up to 45 knots, headwind-to-tailwind shear of up to 90 knots. Typically lasts about 15 minutes. Nothing an sUAS can do about one except not be there.
• Low-level wind shear can occur with or without a storm: near fronts, near inversions, near terrain. A sudden change in headwind means a sudden change in lift.

Fronts what to expect as one passes

The reliable sign a front has passed: the wind shifts. Also expect a pressure change and a temperature/dew point change.

Local winds and how they hit a small aircraft UA.III.B

• Sea breeze blows from water to land in the afternoon; land breeze reverses at night.
• Mountain/valley winds: upslope during the day as slopes heat, downslope at night. Expect strong downdrafts on the leeward side of ridges and rotor turbulence downwind of obstacles.
• Wind flowing over and around buildings creates mechanical turbulence and rotors — the biggest practical hazard for a light drone in an urban site. Expect it up to several times the building's height downwind.
• Wind reduces endurance sharply: flying downwind out and upwind back can strand you. Plan the return leg into wind and budget reserve.
• Cold reduces battery capacity; heat degrades battery life and motor performance. Icing on rotors or airframe adds weight and destroys lift.

Weight UA.IV.A

• The 55 lb limit is the aircraft plus everything on board or attached at takeoff — battery, payload, camera, gimbal, parachute, mounts.
• Manufacturer limits are lower and they are the real limit. Never exceed the maximum gross takeoff weight in the operating manual.
• Effects of an overloaded sUAS: reduced climb rate, reduced maneuverability, higher stall speed for fixed-wing, longer takeoff and landing distance, shorter endurance, greater stress on the airframe, longer stopping distance in a hover-to-stop.
• An overloaded aircraft is much less able to recover from a gust or an evasive maneuver — the margin you need to yield right of way disappears.

Balance and center of gravity UA.IV.A

• Center of gravity (CG) is the point where the aircraft would balance. Manufacturers publish CG limits; payloads must be mounted so the CG stays inside them.
• CG too far forward: nose-heavy; the aircraft pitches down, controls feel heavy, harder to flare or hover level, motors work unevenly.
• CG too far aft: tail-heavy; unstable and twitchy in pitch, prone to oscillation, hardest to recover.
• A multirotor compensates for an off-CG load by running some motors harder — that eats battery, generates heat and cuts flight time even when it flies "fine".
• Adding a payload to one side, or a slung/suspended load, shifts the CG in flight as it swings. Anything carried must be securely attached and must not adversely affect flight characteristics or controllability.
• If the manufacturer publishes a weight and balance procedure, follow it. If not, load conservatively, test-hover at low altitude, and check the aircraft's behavior before committing to the mission.

Load factor stress in turns

• Load factor is the ratio of the load supported by the aircraft to its actual weight, expressed in Gs. Straight and level = 1G.
• Load factor increases with bank angle: 30° ≈ 1.15G, 45° ≈ 1.41G, 60° = 2G. At 60° the aircraft effectively weighs twice as much.
• Consequences of high load factor: increased stall speed for fixed-wing sUAS, higher power demand, structural stress, and rapid battery drain.
• Abrupt control inputs and steep turns near obstacles are how small aircraft get away from pilots. Smooth is efficient.

Performance factors what changes the envelope

Endurance and reserve plan it, don't guess it

• Part 107 requires you to verify there is enough power to operate for the intended operational time and to land safely — a reserve is not optional.
• Published flight times are for a hover, at sea level, in still air, with no payload, on a new battery. Real endurance in wind with a camera is much less.
• Battery capacity fades with cycle count and age. Track cycles per battery.
• Plan return-to-home altitude and route before launch, and know the low-battery behavior of your specific aircraft — some auto-land where they are, some climb first.

Radio communication procedures UA.V.A

• Part 107 does not require a radio, but you're expected to know how airport communications work so you can monitor and stay out of the way.
• CTAF (Common Traffic Advisory Frequency) is the frequency pilots self-announce on at a non-towered airport. It may be a UNICOM, MULTICOM or the tower frequency when the tower is closed.
• UNICOM is a non-government air/ground radio station — usually the FBO — that may provide airport advisories.
• Self-announce format: who you're calling, who you are, where you are, what you intend to do. Example: "Hopedale traffic, drone operating two miles south of the field, surface to four hundred feet, Hopedale."
• Manned pilots use the phonetic alphabet (Alfa, Bravo, Charlie, Delta, Echo, Foxtrot, Golf, Hotel, India, Juliett, Kilo, Lima, Mike, November, Oscar, Papa, Quebec, Romeo, Sierra, Tango, Uniform, Victor, Whiskey, X-ray, Yankee, Zulu) and 24-hour Zulu time.
• At a towered airport, ATC's authorization for your operation comes through LAANC or DroneZone — the tower does not issue it, though you may be asked for a phone number for coordination.

Airport operations UA.V.B — where the manned traffic will be

• Runway numbers are the magnetic heading rounded to the nearest 10, with the last zero dropped: Runway 27 points about 270°. Opposite ends differ by 18 (e.g. 9 and 27).
• Aircraft take off and land into the wind. Given a wind of 270° at 15, expect traffic using Runway 27.
• A segmented circle and a wind sock/tetrahedron near the field show wind and pattern direction. Right-hand traffic is noted with RP in the chart data.
• Standard pattern altitude for light aircraft is about 1,000 ft AGL, but they are far lower on the approach and departure ends — where you'll be.
• Never operate in a way that interferes with operations and traffic patterns at any airport, heliport or seaplane base — that's a rule, not advice.
• Helicopters and medical flights operate off-pattern and often below 500 ft. Hospitals, highways and disaster scenes deserve extra caution.

Aeronautical decision-making UA.V.D — expect several questions

• Risk is assessed on likelihood × severity. A common exam framing: identify the hazard (a condition), then the associated risk (the consequence).
• Crew resource management (CRM) is the effective use of all available resources — the VO, the client, the manual, ATC, checklists — not just the RPIC's own judgment. Brief every participant before launch: roles, emergency procedures, contingencies, hazards.
• Situational awareness is an accurate picture of the aircraft, the crew, the environment and the mission. Its enemies are fixation (staring at the camera feed), complacency (the hundredth identical flight), and task saturation.
• Watch for external pressure: a paying client, a closing weather window, or daylight running out. "Get-there-itis" causes accidents in unmanned aviation exactly as it does in manned.

Physiology UA.V.E

• Vision: the eye's central cone vision is best in daylight; the peripheral rods do the work at night. At night, use off-center viewing — scan 10–15° off to the side of the object, because the center of your vision has a night blind spot. Full dark adaptation takes about 30 minutes, and bright white light destroys it in seconds.
• Scanning for traffic: use a series of short, regularly spaced eye movements in roughly 10° sectors, pausing at each to focus. An aircraft on a collision course shows no apparent relative motion — it just grows larger in one spot on your windscreen.
• Dehydration causes headache, drowsiness, dizziness and impaired judgment. Heat, wind and sun on a field site produce it fast. Heatstroke follows if untreated.
• Hyperventilation from stress produces dizziness, tingling, and a sense of suffocation. Fix it by slowing the breathing rate and talking aloud.
• Stress and fatigue narrow attention and degrade decision quality. Acute fatigue comes from a hard day; chronic fatigue from sustained sleep debt and does not go away with one night's rest.
• Drugs and alcohol: 8 hours minimum after drinking, BAC under 0.04, and no medication that affects your faculties. Antihistamines, sleep aids and cold remedies are common offenders. When in doubt, don't fly.
• Hypoxia and spatial disorientation matter less to a pilot standing on the ground — but questions on the general effects of altitude and illness still appear.

Crew, site and security UA.V.C

• The RPIC is the final authority and must be designated before every flight. A person may manipulate the controls under the RPIC's direct supervision if the RPIC can immediately take direct control.
• A visual observer must be able to communicate with the RPIC at all times by an effective means — voice, radio, or hand signals arranged in advance.
• Run a site survey: launch and recovery zones, obstacles, overhead wires, terrain, people, vehicle traffic, RF interference, emergency landing areas, and the nearest way out.
• Brief everyone: mission, roles, hazards, lost-link plan, abort criteria, who calls the abort (anyone should be able to).
• Be alert to GPS interference near tall structures, canyons and metallic structures, and to intentional jamming or spoofing. Know how your aircraft behaves in ATTI mode with no GPS.
• Cyber and data security: keep firmware current, control who has access to the control station, and treat imagery of people and property with care — privacy is regulated by state law, not the FAA.

Maintenance & inspection UA.V.F

• There is no FAA-mandated maintenance schedule for Part 107 aircraft and no airworthiness certificate. The manufacturer's recommended schedule is the standard, and if there isn't one, you establish your own based on how the aircraft is used.
• Scheduled maintenance is done on a calendar or cycle interval. Unscheduled maintenance is triggered by a discrepancy — a hard landing, a warning, unusual vibration.
• Who may perform it: the remote pilot or owner may do the maintenance themselves if qualified. If the work is beyond your ability or the manufacturer requires it, use the manufacturer or a qualified technician. There is no A&P requirement for sUAS — but the RPIC still owns the decision that the aircraft is safe.
• Record keeping is not required by Part 107 but is strongly recommended: dates, flight hours or cycles, discrepancies found, corrective action, who did it, and the aircraft it applies to. Records matter for insurance, for clients, and if the FAA ever investigates.
• If the aircraft cannot be returned to a condition for safe operation, ground it. Never fly a known discrepancy because the mission is scheduled.

Preflight inspection every flight, every time

Batteries the most common source of trouble

• Lithium polymer cells are damaged by over-discharge, over-charge, physical impact and heat. A puffed or swollen pack is retired, not flown.
• Charge and store at room temperature, on a non-flammable surface, unattended charging avoided. Store at partial (storage) charge, not full, for long periods.
• Cold weather cuts usable capacity significantly — pre-warm packs and expect earlier low-voltage warnings.
• A LiPo fire is a chemical fire that self-sustains. Carry a suitable extinguisher and a fire-resistant bag; plan to smother and isolate rather than to save the pack.
• Track cycles and retire packs on the manufacturer's schedule. Battery failure is the leading cause of unplanned landings and flyaways.

Emergency procedures UA.V.C, 107.21

Night operations checklist 107.29

• Anti-collision lighting visible for 3 statute miles, flash rate sufficient to avoid collision, on for the whole flight in darkness or civil twilight.
• Preflight in daylight if possible, or with adequate lighting. Walk the site before dark to find wires, poles and drop-offs.
• Give yourself 30 minutes to dark-adapt; use red or low-intensity white light at the control station.
• Use off-center viewing to spot the aircraft and other traffic; a light directly ahead may be invisible in your night blind spot.
• Learn manned aircraft lighting so you can tell where the traffic is going: red on the left wingtip, green on the right, white at the tail. Red and green together with white below means it's coming toward you.
• Depth perception is poor at night — rely on the aircraft's telemetry for altitude and distance, and keep the mission simple.

Every number on the exam learn cold

Mnemonics write these on the scratch paper first

Traps that catch people read the question twice

• AGL vs MSL. Your limit is AGL; the chart is MSL. Add the field elevation before you compare.
• Hundreds of feet. A 25 in a dashed box is 2,500 ft, not 25 ft. A runway 72 is 7,200 ft.
• Zulu time. Convert before you answer a "what time locally" question, and mind daylight saving.
• True vs magnetic wind. METAR and TAF winds are true; tower and ATIS winds spoken over the radio are magnetic.
• Night is legal now. Any answer that says you need a waiver for night flight is a stale answer — you need anti-collision lighting instead.
• The tower can't authorize you. Authorization comes through LAANC or DroneZone, even if you can see the controller from where you're standing.
• A shelf overhead isn't a wall. Under a Class B or C shelf whose floor is above you, the surface airspace may well be Class G — no authorization needed. Check what's at the surface.
• "Sustained flight" vs "transiting" decides the ops-over-people answers. So does whether it's an open-air assembly.
• Serious injury and $500 are two separate triggers for the same 10-day report. Damage to your own drone doesn't count.
• Hazmat and the 55 lb limit cannot be waived. Most of the operating limitations can.
• When two answers look right, pick the one that is more conservative and more specific to the regulation. The FAA's answer is almost never the aggressive one.

Last 48 hours study plan

• Work the sectional excerpts in FAA-CT-8080-2 until airspace identification is automatic. That's the difference between passing and failing.
• Take full 60-question timed practice exams, not flashcard drills, and score 85–90% consistently before you book.
• Review every missed question by its ACS code, not by memorizing the answer.
• Reread Area V — Operations. It is the biggest slice and the easiest to over-trust.
• Sleep. IMSAFE applies to the test, too.