UA.V.E.K7: Fitness for flight.

ACS Area V — Operations Task E: Physiology References: ACAdvisory CircularCloseFAA guidance that explains acceptable ways to comply with rules or understand FAA procedures. 107-2; FAAFederal Aviation AdministrationCloseThe U.S. aviation regulator responsible for Part 107 rules, airspace, and pilot certification processes.-H-8083-2, FAAFederal Aviation AdministrationCloseThe U.S. aviation regulator responsible for Part 107 rules, airspace, and pilot certification processes.-H-8083-25; FAAFederal Aviation AdministrationCloseThe U.S. aviation regulator responsible for Part 107 rules, airspace, and pilot certification processes.-G-8082-22

Key Concepts

Remote pilot readiness: responsibilities that determine “fit to fly”

Fitness for flight begins with the remote pilot’s duty to ensure the operation is legal, appropriate for the aircraft, and risk-mitigated. When planning any operation over human beings, the pilot must verify the small unmanned aircraft matches the intended category of operation, is properly labeled, and is listed on an FAAFederal Aviation AdministrationCloseThe U.S. aviation regulator responsible for Part 107 rules, airspace, and pilot certification processes.‑accepted Declaration of Compliance (DOCDeclaration of ComplianceCloseManufacturer compliance document that matters for some Operations Over People categories.). This verification is part of the pilot’s preflight responsibilities and drives the go/no‑go decision before launch^[8]. Operations over people at night use the same categories and restrictions as by day; the risk mitigations are time‑of‑day neutral. If operating over people at night, you may do so only when you meet §§ 107.29 and 107.39, and manufacturers may need to account for the mass of an anti‑collision light when declaring Category 2 or 3 eligibility^[8]. Practically, “fit to fly” means you confirm category eligibility, labeling/DOCDeclaration of ComplianceCloseManufacturer compliance document that matters for some Operations Over People categories. status, and night‑operation requirements before you arm the motors.

Part 107 Subpart D applies to operations over people or over moving vehicles. A remote pilot may only conduct such operations in accordance with the applicable category—Category 1 (§ 107.110), Category 2 (§§ 107.115 and 107.120), Category 3 (§§ 107.125 and 107.130), or Category 4 (§ 107.140)—as specified in § 107.105^[3]. Knowing which subpart applies is foundational to flight fitness for these higher‑risk scenarios.

Aircraft eligibility: key numbers that shape the go/no‑go

• Category 1 (§ 107.110): The aircraft must weigh 0.55 pounds or less on takeoff and throughout the operation, including everything onboard or attached, and have no exposed rotating parts that would lacerate human skin. Sustained flight over open‑air assemblies requires meeting § 89.110 or § 89.115(a)^[3]. This low mass threshold and design feature directly affect whether you are “fit” to fly over people with your specific aircraft.
• Category 2 (§ 107.120): The aircraft must be designed/produced/modified so it will not cause injury equivalent to or greater than 11 foot‑pounds of kinetic energy upon impact, have no exposed rotating parts that would lacerate human skin, and contain no safety defects. It must display a permanent English label indicating Category 2 eligibility and be accompanied by operating instructions covering system description, limitations, allowable modifications, and configuration/mode verification^[4]. If any of these are not met, you are not fit to launch a Category 2 operation.

Operational risk controls: fitness in context (people, vehicles, weather, and airspace)

• Over moving vehicles: If you are not within or over a closed‑ or restricted‑access site, you must not maintain sustained flight over any moving vehicle; only “Transit Only, No Sustained Flight” is permitted for Category 1, 2, or 3 when persons are not directly participating. Within a closed/restricted site, persons not directly participating “Must be on Notice.” Category 4 aircraft may operate over moving vehicles if not prohibited by their FAAFederal Aviation AdministrationCloseThe U.S. aviation regulator responsible for Part 107 rules, airspace, and pilot certification processes.‑approved Flight Manual limitations^[1]. Being fit to fly means planning routing so any over‑road segment is brief transit, not loitering.
• Night operations over people: Categories and restrictions are unchanged at night; manufacturers may need to account for anti‑collision light mass when declaring Category 2 or 3 compliance^[8]. Confirm your aircraft’s declared category still holds with any night equipment installed before launch.
• Thunderstorm proximity: Lightning is a serious operational hazard. Helicopter hot‑refueling guidance prohibits HRRHelicopter Rotorcraft RefuelingCloseA specialized refueling procedure referenced in FAA safety examples about radio silence and thunderstorm risk. with electrical storms within 10 nautical miles; lightning can travel great distances beyond a storm. While this procedure is rotorcraft‑specific, the hazard is universal—launching a small UASSmall Unmanned Aircraft SystemCloseA small drone plus the control and communication links used to operate it. with thunderstorms inside 10 NMNautical MileCloseA distance unit used in aviation. One nautical mile is about 1.15 statute miles. is imprudent and undermines fitness for flight^[6].
• Airspace and coordination readiness: Many UASUnmanned Aircraft SystemCloseAn unmanned aircraft plus its control station, communication links, and supporting components. operations outside special use airspace are approved via an FAAFederal Aviation AdministrationCloseThe U.S. aviation regulator responsible for Part 107 rules, airspace, and pilot certification processes. COACertificate of Waiver or AuthorizationCloseFAA authorization often used by public aircraft operators or special operations. or a special airworthiness certificate. These approvals confine operations to specified geographic boundaries and altitudes, often require ATCAir Traffic ControlCloseThe system that manages controlled airspace, traffic flow, and aircraft separation services. coordination, and typically require a NOTAMNotice to Airmen / Notice to Air MissionsCloseOfficial notice about temporary conditions, hazards, or changes that can affect a flight.. Observers may be required to provide “see‑and‑avoid” support to satisfy 14 CFRCode of Federal RegulationsCloseThe federal rulebook where Part 107, Part 89, Part 48, and other aviation rules live. § 91.113. For approvals at or above FL180Flight LevelCloseAltitude expressed using a standard pressure setting, mainly relevant to higher-altitude crewed aviation., UASUnmanned Aircraft SystemCloseAn unmanned aircraft plus its control station, communication links, and supporting components. operate under IFRInstrument Flight RulesCloseRules for operating primarily by instruments. On the exam, IFR often appears in weather, traffic, and airspace context., communicate with ATCAir Traffic ControlCloseThe system that manages controlled airspace, traffic flow, and aircraft separation services., and are appropriately equipped. At controlled or uncontrolled airports, approved UASUnmanned Aircraft SystemCloseAn unmanned aircraft plus its control station, communication links, and supporting components. operations must comply with the applicable COACertificate of Waiver or AuthorizationCloseFAA authorization often used by public aircraft operators or special operations./limitations; pilots of manned aircraft rely on local ATCAir Traffic ControlCloseThe system that manages controlled airspace, traffic flow, and aircraft separation services. procedures or CTAFCommon Traffic Advisory FrequencyCloseThe frequency pilots use to self-announce near many non-towered airports. monitoring for awareness^[5]. Fitness includes confirming any COACertificate of Waiver or AuthorizationCloseFAA authorization often used by public aircraft operators or special operations./limitations, NOTAMsNotice to Airmen / Notice to Air MissionsCloseOfficial notice about temporary conditions, hazards, or changes that can affect a flight., airport proximity procedures, and observer requirements relevant to your mission.
• Precision minima awareness: In manned operations using an Enhanced Flight Vision System, certain approaches are authorized to 100 feet above the touchdown zone elevation per § 91.176(b). While unrelated to sUASSmall Unmanned Aircraft SystemCloseA small drone plus the control and communication links used to operate it., it underscores that altitude minima are regulatory and precise—an important mindset for remote pilots when complying with any altitude‑related authorization or limitation^[2].

Study resources that strengthen your “fitness” knowledge include the Pilot’s Handbook of Aeronautical Knowledge and the Risk Management Handbook, both cited in ACAdvisory CircularCloseFAA guidance that explains acceptable ways to comply with rules or understand FAA procedures. 107‑2A as core references for remote pilots^[7].