UA.I.B.K12: Prohibition of operating multiple sUAS.
ACS Area I — Regulations Task B: Operating Rules References: 14 CFR parts 47, 48, 89, and 107, subpart B; AC 107-2; FAA-H-8083-25; FAA-G-8082-22
Key Concepts
The one-aircraft-per-operator rule under Part 107
Part 107 operating rules are built around a single-aircraft, single-operation concept: each small UAS operation has one accountable remote pilot in command (remote PIC) who must give undivided attention to that operation from preflight through landing. Practically, this means you cannot conduct “swarm” or parallel flights by trying to operate more than one sUAS at the same time, and you cannot split your attention by serving in multiple crew roles for different aircraft simultaneously. The prohibition on operating multiple sUAS at once is an operating rule under 14 CFR part 107, which governs small UAS operations in the NAS.[6] For the exam, think in terms of one remote PIC per aircraft, one operation at a time.
Why the strict focus? The remote PIC is ultimately responsible for defining and maintaining the safe operational parameters for the flight. That workload—airspace checks, aircraft configuration, hazard mitigation, crew briefing, and continuous monitoring—must not be diluted by trying to manage a second aircraft or a second operation.[5]
Crew responsibilities and workload management
Your duties begin before takeoff. Part 107 requires a preflight inspection and a determination that the aircraft is in a condition for safe operation. When risk increases (for example, during operations over people), the depth of that assessment must increase accordingly. This reinforces why one person cannot stretch attention across multiple aircraft at once.[4] Remote PIC responsibilities remain with you throughout the operation; even when manufacturer “remote pilot operating instructions” provide configuration guidance (e.g., for operations over people), they do not shift accountability away from the remote PIC to make real-time safety decisions for that single flight.[5][8]
Operations over people and over moving vehicles illustrate the intensity of that workload. For example:
- Category 3 small UAS are not permitted to operate over open-air assemblies of human beings (§ 107.125(b)). Categories 1 and 2 are also prohibited from sustained flight over open-air assemblies unless requirements in § 89.110 or § 89.115(a) are met, and even then only by waiver for sustained flight.[1]
- Outside a closed or restricted-access site, Categories 1–3 may only transit over moving vehicles; no sustained flight is permitted. Inside such a site, persons not directly participating must be “on notice.” Category 4 operations are further constrained by Flight Manual or Administrator-specified operating limitations.[7]
Each of these constraints requires continuous judgment and compliance monitoring by the remote PIC for a single aircraft—another reason multiple-aircraft operation is incompatible with Part 107’s crew concept.
Practical implications and test-ready takeaways
- One remote PIC, one sUAS, one operation. Do not attempt to launch or supervise two aircraft at the same time. If a job requires two aircraft airborne concurrently, assign a separate qualified remote PIC (and, as needed, a VO) to each aircraft and run them as distinct operations with clear boundaries.[6][5]
- A visual observer (VO), if used, supports a single operation. The VO’s attention—like the remote PIC’s—cannot be divided among multiple aircraft without degrading see-and-avoid and compliance monitoring.[5]
- Preflight and configuration are aircraft-specific. When operating under special provisions (e.g., eligible Categories 2–3 over people), follow the model’s remote pilot operating instructions and verify the exact configuration for that aircraft; you may not add unlisted payloads for those operations. Managing two different configurations at once invites errors and defeats the safety intent.[5][4]
- Risk environments demand focus. Over-people and over-vehicle rules (e.g., transit-only over moving vehicles outside closed sites; no Category 3 operations over open-air assemblies) require persistent situational awareness that is feasible only when you are dedicated to a single aircraft.[7][1]
Bottom line for the exam: Under Part 107’s operating rules, you must conduct one small UAS operation at a time. The remote PIC is solely responsible for that operation’s safety envelope—from preflight through landing—and the rule structure for higher-risk environments (people and vehicles) underscores why parallel, multi-aircraft control is not permitted.[6][5][4][7][1][8]
Test Yourself
UA.I.B.K12No practice questions are currently available for this specific knowledge element.