When aviation first developed Crew Resource Management (CRM), the focus was on multi-crew cockpits where poor communication between pilots caused accidents. Today, that same body of knowledge has been adapted for the single operator — and in the drone world, it forms the foundation of Single-Pilot Resource Management (SRM). For Part 107 remote pilots, SRM is the discipline of using every available resource — cognitive, technological, human, and environmental — to make safe, informed decisions during every phase of a UAS operation.
SRM is not a checklist item you complete before takeoff. It is a continuous mental process that begins during mission planning and ends only after the aircraft is secured and the operation is debriefed. Understanding its components helps remote pilots move from reactive flying to proactive, risk-aware operations.
The Core Components of SRM
The FAA identifies several interlocking elements that together constitute SRM. Mastering these individually is useful, but the real goal is weaving them together seamlessly during flight.
Aeronautical Decision-Making (ADM)
ADM is the structured process by which a pilot identifies hazards, evaluates options, and chooses a course of action. For remote pilots, good ADM might look like this: you arrive at a construction site mapping mission and notice the wind has picked up beyond what you planned for. ADM tells you to stop, reassess the risk, consider alternatives (fly lower and slower, delay the mission, reduce the flight area), and make a deliberate choice rather than pressing on because the client is watching. The FAA emphasizes that most UAS accidents trace back not to mechanical failure but to poor ADM — the human decision to fly when conditions were marginal.
Risk Management
Risk management is the identification and mitigation of hazards before and during flight. The FAA's PAVE checklist is a structured tool for this purpose. PAVE stands for: Pilot-in-Command (your own fitness and currency), Aircraft (airworthiness and equipment), enVironment (weather, airspace, terrain, obstacles), and External pressures (schedule, client expectations, economic pressure). Running through PAVE before every flight forces you to evaluate each risk category independently rather than letting one factor (like enthusiasm for a cool shot) overshadow a legitimate hazard in another category.
Risk can be rated using a simple matrix: likelihood of an event multiplied by its severity. A gust of wind near people scores high severity even if likelihood is moderate, which may tip the decision toward aborting. The FAA Risk Management Handbook (FAA-H-8083-2) describes this process in detail and encourages pilots to set personal minimums — conservative thresholds below which they will not fly — before the pressure of a live mission distorts their judgment.
Situational Awareness (SA)
Situational awareness is your real-time mental picture of where your aircraft is, where it is going, and what is happening around it. SA has three levels: perception (noticing that a helicopter is entering the area), comprehension (understanding it is on a collision course with your UAS), and projection (anticipating where both aircraft will be in 30 seconds). Losing SA — sometimes called getting behind the aircraft — is one of the most dangerous states a pilot can enter.
Remote pilots face unique SA challenges. Unlike a manned pilot who feels turbulence in their seat and sees the horizon directly, a remote pilot reads the environment entirely through visual observation and telemetry. Loss of visual contact with the sUAS, a dropped video feed, or a momentarily distracting conversation with a bystander can all degrade SA rapidly. Maintaining visual line of sight (VLOS), the cornerstone requirement of Part 107, is fundamentally an SA tool — it keeps the pilot directly connected to the aircraft's energy state, attitude, and surroundings.
Workload Management
A remote pilot performing a professional mapping mission may simultaneously be monitoring battery levels, watching for air traffic, managing ground obstacles, responding to telemetry warnings, and ensuring bystanders stay clear of the operating area. That is a heavy cognitive load for one person. Effective workload management means prioritizing tasks, using automation thoughtfully, and shedding lower-priority tasks when the situation demands focus.
Automation — including autopilot modes, return-to-home functions, and geofencing — can reduce workload significantly, but only if the pilot understands its limitations. Over-reliance on automation creates automation complacency, a state in which the pilot stops monitoring actively because they trust the system to handle everything. When the automation fails (and it eventually will), a complacent pilot has degraded situational awareness and reduced time to react. Automation should be thought of as a capable crew member, not an infallible one.
Task Management and Prioritization
The traditional aviation priority hierarchy — aviate, navigate, communicate — translates directly to UAS operations: first, control the aircraft; second, know where it is going; third, communicate with ATC, crew, or bystanders. When an unexpected event occurs, remote pilots must resist the urge to talk through the problem while the aircraft drifts toward a hazard. Fly first, talk later.
Why SRM Matters for Part 107 Pilots
The regulatory framework of Part 107 places the Remote Pilot in Command (RPIC) with final authority and responsibility for the safety of every flight. There is no co-pilot to catch errors, no flight attendant to notice something wrong, and no air traffic controller providing separation in uncontrolled airspace. The RPIC is the last line of defense. SRM is the toolkit that makes a single operator capable of filling that role safely.
The FAA's accident data consistently shows that human factors — not hardware — are the leading cause of UAS incidents. Controlled flight into terrain, fly-aways due to ignored warning signs, and collisions with manned aircraft during low-visibility conditions all reflect SRM failures: poor risk assessment, degraded situational awareness, or workload mismanagement. By studying and actively practicing SRM, remote pilots develop the same professional discipline that distinguishes experienced manned-aircraft pilots from novices.
Key Numbers and Rules
- 400 feet AGL — the standard Part 107 altitude ceiling, a hard rule that must be tracked continuously as part of situational awareness.
- 3 statute miles visibility — minimum flight visibility required under Part 107; below this threshold, flying is prohibited without a waiver.
- 500 feet below / 2,000 feet horizontal — minimum cloud clearance distances under Part 107 (Class G, uncontrolled airspace); these must be actively assessed, not assumed.
- Personal minimums — should be set before the flight, not during it, to insulate decisions from external pressure.
- Battery reserves — no regulatory minimum exists for UAS battery reserves, but SRM best practice is to land with a meaningful buffer (often 20–30% capacity) to account for unexpected events.
- VLOS requirement — the remote pilot or a designated visual observer must maintain unaided visual contact with the sUAS at all times (waivers aside); this is the primary SA mechanism in Part 107 operations.
Memory Aid: PAVE
Use PAVE before every flight to systematically evaluate risk across all four categories:
- P — Pilot in Command: Am I current, rested, healthy, and mentally fit to fly? (Use IMSAFE for a deeper self-check: Illness, Medication, Stress, Alcohol, Fatigue, Emotion.)
- A — Aircraft: Is the sUAS airworthy? Are batteries charged, propellers undamaged, sensors calibrated, and firmware updated?
- V — enVironment: What is the weather doing? What airspace am I in? What obstacles and people are nearby?
- E — External pressures: Is a client, deadline, or cost concern pushing me toward a go decision I wouldn't otherwise make?
If any element of PAVE reveals an unacceptable risk and you cannot mitigate it, the correct SRM decision is to delay or cancel the flight.
Common Test Traps
- SRM vs. CRM terminology: The FAA knowledge test may use both terms. CRM refers to multi-crew operations; SRM is the single-operator adaptation. Know which applies to Part 107 (SRM), but understand they share the same foundational concepts.
- Automation complacency is a hazard, not a feature: A question may present a scenario where a pilot relies entirely on return-to-home. The correct answer recognizes that this automation dependency degrades situational awareness and is an SRM failure.
- External pressure is a recognized risk category: Test questions often describe a scenario where a pilot is pressured by a client or deadline. The correct SRM response is to recognize this as an external pressure hazard and not let it override a sound go/no-go decision.
- PAVE applies before AND during flight: Some questions imply that risk management ends at preflight. SRM and PAVE are continuous; a changing environment mid-mission (weather rolling in, unexpected air traffic) requires a fresh risk evaluation.
- Situational awareness loss is gradual: The FAA knowledge test may describe a pilot who is distracted by bystanders and then loses track of the sUAS altitude. This is a textbook SA degradation scenario — recognize it as an SRM failure rooted in poor workload management, not just inattention.