🇺🇸 U.S.A. FIRST — DJI Agras Night Operations: Navigation, Fatigue, RTK, RTH & FAA Part 137 Safety

Night agricultural drone operations can solve real operational problems—but darkness changes the risk profile of every phase of the mission. In hot summer conditions, daytime heat and wind can make agricultural work difficult, while evening and nighttime conditions may bring lower temperatures and calmer winds. That does not automatically make night the safer or better window. Reduced visibility, fatigue, harder obstacle recognition, wildlife, wet terrain, electrical hazards, and more difficult emergency response all require a more disciplined operating system.

This Ares Acres guide expands the DJI Agras night-operations training video into a complete field reference for DJI Agras operators. It is written primarily around the DJI Agras T100, DJI Agras T50, and similar modern Agras aircraft, while recognizing that exact menus, capabilities, firmware, aircraft weight, authorization requirements, and operating limitations can differ.

Quick links: Ares Acres · DJI T100 Parts · DJI Agras Parts · DJI Accessories · DJI Agriculture Tutorials · Contact Ares Acres

Prefer to watch instead of read? The video above demonstrates DJI’s night-operation safety concepts. The guide below goes further by separating manufacturer training examples from U.S. regulatory requirements, expanding the night-flight workflow, adding fatigue controls, clarifying RTK and RTH limitations, and strengthening the crash and power-line response guidance.

What You Will Learn

• Why night can sometimes be an attractive agricultural operating window—and why that does not make it automatically appropriate.
• How to decide whether a field is a reasonable candidate for night operations.
• Why fragmented, obstacle-rich, manually flown plots generally create more risk after dark.
• How to prepare a field during daylight before returning after dark.
• How Route Mode and other planned automatic workflows can reduce unnecessary manual maneuvering.
• How to establish a clearly lit takeoff, landing, loading, and battery-service area.
• How operator fatigue, insects, wet terrain, and reduced depth perception change night operations.
• How to use RTK and RTH intelligently without treating either as a guarantee.
• What to monitor continuously on the DJI Agras remote controller.
• Why wires and power lines deserve special treatment at night.
• How U.S. Part 107 night rules relate—and often do not directly apply—to heavy agricultural dispensing operations.
• How Part 137, Part 91, exemptions, Section 44807, and operation-specific authorizations can fit into U.S. agricultural UAS operations.
• What to do after a crash, especially if the aircraft contacts or damages an electrical line.

Compatibility and Scope

This tutorial is intended as an operational planning and safety guide, not as a replacement for the aircraft manual, pesticide label, exemption, certificate, COA, state applicator requirements, local restrictions, employer procedures, or site-specific risk assessment. Use the current manual and firmware for the aircraft actually being operated.

Topic	Primary relevance
Night field selection	DJI Agras T100, T50 and similar agricultural aircraft
Route planning / automatic task execution	DJI Agras app workflows and compatible aircraft
RTK / D-RTK	Aircraft and remote configurations supporting RTK positioning
FAA Part 137	U.S. agricultural aircraft operations involving dispensing covered substances/products
Part 107 night requirements	Eligible small UAS operations conducted under Part 107; not a blanket authorization for heavy Agras spraying
Power-line emergency guidance	All aircraft and ground crews; electrical utility control takes priority

Quick Answer: Can You Fly a DJI Agras Drone at Night?

Potentially—but “the aircraft can physically fly at night” and “this specific agricultural mission is authorized and prudent at night” are different questions. Before a U.S. operator conducts a night agricultural mission, the operator should verify the regulatory framework that actually applies to the aircraft, aircraft weight, operation, substance being dispensed, exemption/COA conditions, and pilot/operator certificates.

A planned night mission should also pass a field-level go/no-go review. Darkness amplifies uncertainty. A large, previously surveyed field with few obstacles and a well-understood automated route is fundamentally different from a fragmented field requiring constant manual bypasses around trees, poles, wires, houses, irrigation structures, vehicles, or people.

U.S. Regulatory Framework: Part 107 Is Not the Whole Story

The title of this tutorial references FAA Part 137 because agricultural dispensing is a specialized category of operation. A common mistake is to hear “Part 107 allows night operations” and assume that this alone authorizes a heavy DJI Agras aircraft to spray at night. That conclusion can be wrong.

Framework	Why it matters	Night-operation takeaway
14 CFR Part 107	Framework for eligible small unmanned aircraft operations, generally involving small UAS below 55 lb at takeoff unless another authorization/framework applies.	Part 107 has specific night-operation requirements, including applicable pilot knowledge/training and anti-collision lighting requirements. Meeting those requirements does not by itself authorize a heavy agricultural dispensing mission.
14 CFR Part 137	Applies to qualifying agricultural aircraft operations involving dispensing or spraying.	Operators need the appropriate agricultural aircraft operator certification/authorization and must follow the conditions applicable to their operation.
14 CFR Part 91	Can apply to larger UAS operations outside the ordinary Part 107 framework.	Night limitations may be contained in the applicable operating authorization, exemption, waiver, or COA.
Section 44807 exemption	A pathway the FAA uses for certain UAS operations that cannot be conducted under ordinary Part 107 authority, including many operations with aircraft over 55 lb.	The operator must follow the exact exemption and associated operating conditions; do not assume generic Part 107 night rules replace them.
COA / operation-specific conditions	Some operations require or operate under a Certificate of Waiver or Authorization or other specific conditions.	Those conditions can contain aircraft-, location-, altitude-, lighting-, crew-, and night-specific limitations.

For current U.S. guidance, review the FAA’s Advanced Operations, Dispensing Chemicals and Agricultural Products, Section 44807, and Part 107 Waivers resources.

Part 107 Night Rules: Useful Context, Not a Blanket Agras Authorization

For operations that actually qualify to operate under Part 107, U.S. night operations include specific requirements for the remote pilot and aircraft anti-collision lighting. FAA materials describe anti-collision lighting visible for at least three statute miles with a flash rate sufficient to avoid a collision, subject to the applicable rule and operating circumstances. Those provisions should not be copied onto a T100 or another heavy agricultural aircraft and treated as the entire legal analysis.

Operational rule: before planning a night mission, identify the legal authority first. Do not begin with the aircraft’s menu options and work backward to legality.

Why Operators Consider Night Agricultural Operations

The DJI training video begins with a practical agricultural reality: in some regions, summer daytime conditions can be extremely hot, dry and windy. After sunset, temperatures can decrease, humidity can rise and winds may sometimes become calmer. That can create a potentially attractive operating window.

However, nighttime can introduce other meteorological and application concerns. Wind can change direction, stable atmospheric conditions can develop, visibility can decrease, and temperature inversions can materially affect drift behavior. For spraying, the product label and applicable pesticide rules remain controlling. “Cooler and calmer” is not a substitute for measuring and evaluating actual conditions at the field.

The Core Night-Operations Tradeoff

Potential nighttime advantage	Corresponding nighttime risk
Lower temperature	Reduced visual detection of wires, terrain, people and obstacles
Potentially lower wind	Possible inversions or other drift-sensitive conditions
Less daytime heat exposure	Pilot fatigue and circadian drowsiness
Potentially fewer people working in the field	Harder to see unexpected people, vehicles or animals entering
More available operating hours	Longer crew duty day and accumulated fatigue
Automated route can reduce control workload	Automation can create complacency if the crew stops actively monitoring

Step 1: Decide Whether the Field Is a Night Candidate

Fields that are poor night candidates

The source video specifically warns about fragmented plots requiring extensive manual operations. That is a sound planning principle. If a mission requires repeated hand-flying, improvised obstacle bypassing, frequent orientation changes, close work around wires or structures, or constant visual interpretation, daylight is generally the better operating environment.

Examples include:

• Small irregular parcels separated by roads, houses, trees, drainage features or utility infrastructure.
• Fields with uncharted power lines, guy wires, poles or communications cables.
• Plots where the operator expects to use Manual or Manual Plus for most of the application.
• Areas with substantial pedestrian, livestock, vehicle or equipment activity.
• Fields with difficult terrain where the crew has not previously inspected the landing area and access route.
• Operations requiring repeated last-second obstacle decisions.

Fields that may be better candidates

The video suggests that larger plots with fewer obstacles may be considered for night work when the task can be planned in advance and executed using an appropriate automatic operation mode. That does not make the mission automatically safe, but it reduces the amount of improvised maneuvering required in darkness.

Field characteristic	Night assessment
Large, open, previously surveyed	More favorable candidate if authorized and environmental conditions are suitable
Few fixed obstacles, all mapped	More favorable than obstacle-rich terrain
Known takeoff/landing zone	Preferred
Reliable route and positioning setup	Preferred, but still requires active monitoring
Heavy manual flying required	Prefer daylight
Unmapped wires or changing obstacles	Do not treat as routine night operation
Unfamiliar site	Conduct daylight reconnaissance before night work

Step 2: Reconnoiter the Site in Daylight

A high-quality night mission is prepared before sunset. Walk or inspect the operating area in daylight and identify hazards that can become nearly invisible after dark.

Build the hazard inventory around more than just trees. Include:

• Power lines and pole spans.
• Guy wires and support cables.
• Communications cables.
• Tree branches that extend into route corridors.
• Fences, fence posts and gates.
• Irrigation pivots, pumps, pipes and risers.
• Weather stations.
• Tractors, trucks, trailers and tender equipment.
• Buildings, sheds, grain structures and roofs.
• Ditches, canals, terraces and embankments.
• Uneven ground near the takeoff and landing zone.
• Livestock enclosures and likely animal movement.
• Public roads, driveways and pedestrian access points.

Where supported by the aircraft and workflow, add obstacles during field planning rather than assuming they can be recognized and bypassed later. Review our DJI Agras T100 Route Mode Field Planning and Task Execution Tutorial for the full boundary, obstacle and route-planning workflow.

Step 3: Prefer Planned Operations Over Improvised Manual Bypassing

The DJI night-operations video recommends automatic operation mode for larger plots with fewer obstacles and specifically warns against manually improvising obstacle bypasses at night. The reason is workload. In darkness, the pilot has less visual information while simultaneously interpreting the remote controller, FPV feed, map, aircraft status, positioning quality, battery state, route progress and ground activity.

Planned automation can reduce workload, but it must never become unattended operation. The operator still has to watch aircraft status, route behavior, obstacle conditions, battery reserve, positioning, communications and the operating area.

For quick regular fields, see the DJI Agras T100 A-B Operation Mode Tutorial. For manually controlled work in complex plots, see the Manual and Manual Plus Operations Tutorial—and recognize that a field heavily dependent on manual flying may be a poor candidate for night operation.

Step 4: Build a Night Takeoff and Landing Zone

The takeoff and landing area should be treated like a controlled work zone, not simply a patch of ground with a flashlight nearby.

Choose the site

• Use an open, flat, known surface whenever possible.
• Keep the aircraft away from spectators, public traffic, livestock and unnecessary crew movement.
• Avoid tall vegetation that can hide debris or obstruct the aircraft.
• Keep generators, battery-cooling equipment, charging cables and chemical-loading equipment organized outside the immediate aircraft movement area.
• Establish a predictable direction for aircraft approach and departure when the operation allows it.

Light the site

The video recommends work or roof-mounted lights to illuminate the takeoff and landing area. That is useful, but lighting should be positioned so it helps rather than blinds the pilot or washes out the controller/FPV display.

• Use broad work-area lighting for the landing zone.
• Use headlamps or handheld lights for inspection and ground work.
• Avoid pointing intense light directly into the pilot’s eyes.
• Avoid creating deep shadows around obstacles or trip hazards.
• Keep power cables routed so crew members cannot trip over them.
• If a generator powers site lighting, keep exhaust, fuel and electrical equipment safely separated from the aircraft, batteries and chemical handling area.

Night lighting for the ground work area is separate from any aircraft anti-collision lighting required by the applicable FAA operating framework.

Step 5: Complete the Normal Pre-Flight Inspection—Then Add Night-Specific Checks

Darkness is not a reason to shorten the normal inspection. Use the complete DJI T100–T50 Pre-Flight Safety Tutorial before the first mission.

Aircraft checks

• Arms fully unfolded and locks secure.
• Propellers free from cracks, deformation or abnormal looseness.
• Landing gear and structural fasteners secure.
• Battery fully seated and latched.
• Battery condition appropriate for the task.
• No visible corrosion, contamination or damage at power interfaces.
• Spray or spreading equipment assembled correctly and free from obvious blockage or leakage.
• No unresolved critical warnings in Device Health.

Remote controller checks

• Controller batteries have adequate charge.
• Aircraft connection strength is stable.
• Positioning state is suitable for the task.
• RTK source, if used, is configured and healthy.
• Correct field, route and material/task template are selected.
• Home point / return point is appropriate.
• RTH altitude and return-routing parameters are deliberately reviewed.
• Map and FPV views are usable in current lighting.

Night-specific checks

• Takeoff and landing area lighting operational.
• Pilot and crew lighting available with backups.
• All known obstacles mapped or accounted for.
• Power-line locations verbally briefed to the crew.
• Crew understands emergency stop / return / landing roles.
• Pilot is not fatigued, impaired or struggling to stay alert.
• Weather and application conditions have been measured rather than assumed.
• Communication method between pilot, loader and observer/spotter is established where used.

Step 6: Dress for the Ground Environment

The source video recommends long sleeves, long pants, a headlamp, anti-mosquito protection and appropriate footwear in paddy fields. Those recommendations should be interpreted as general field-risk controls, not guarantees against wildlife, insect or terrain hazards.

A practical night field kit can include:

• Long sleeves and long pants appropriate for the weather and chemical-handling requirements.
• A headlamp plus a backup flashlight.
• Suitable insect repellent used according to its label.
• Waterproof, high-traction footwear where the terrain is wet.
• Required chemical PPE from the pesticide/product label.
• High-visibility clothing where ground vehicles or crews are operating.
• Drinking water and a fatigue-management plan.
• A charged phone/radio for emergency communication.

The transcript’s reference to “Florida water” is best understood as a local example of mosquito protection. Use an appropriate repellent rather than treating any particular folk product as required protective equipment.

Step 7: Manage Fatigue as an Operational Hazard

One of the most important statements in the video is that night operations can increase pilot fatigue. Agricultural drone crews can already be working long days during spraying or seeding season. Extending that day into the night can degrade attention, reaction time and judgment even when the aircraft is flying automatically.

Ares Acres night-fatigue controls

• Do daylight preparation first. Mapping, route verification, obstacle identification and equipment setup should be completed before the crew is tired whenever possible.
• Set a maximum duty window. Do not let “one more field” become the operating standard.
• Schedule breaks before fatigue is obvious. Waiting until the pilot is struggling to focus is too late.
• Hydrate and eat appropriately. Heat exposure earlier in the day can compound nighttime fatigue.
• Rotate trained crew when practical. A second qualified operator can reduce prolonged continuous control workload.
• Use an observer/spotter when appropriate and permitted. A second set of eyes can help with ground traffic, aircraft position and emerging hazards, but does not transfer the pilot’s regulatory responsibility.
• Stop for drowsiness. Microsleeps, repeated missed callouts, difficulty reading the map, confusion over aircraft orientation or poor judgment are stop-work indicators.

Step 8: Understand RTK at Night

The source video recommends RTK positioning for precise automatic return. RTK can improve positional accuracy and repeatability, especially when the system is healthy and correctly configured. It should not be treated as a guarantee that the aircraft will avoid obstacles, return through a safe corridor, or land safely without monitoring.

For a complete setup guide, see our DJI Agras T100 D-RTK 3 Tutorial. Ares Acres also carries the DJI Agras T100 D-RTK 3 High-Precision GNSS Mobile Station.

Before relying on RTK-assisted workflows

• Verify the intended RTK source is selected.
• Confirm the remote controller shows the expected positioning status.
• Check for warnings or degraded positioning.
• Confirm the field and home/return reference have not been displaced.
• Review the route between the field and the landing area for wires, trees and structures.
• Continue monitoring the aircraft throughout return and landing.

Step 9: Treat RTH as a Monitored Procedure, Not a Fire-and-Forget Button

The DJI video tells operators to monitor both manual return and automatic RTH, including aircraft height and speed, to prevent the aircraft from leaving the intended corridor or colliding with obstacles. This principle is especially important at night.

Before takeoff, review:

• Home/return point location.
• RTH altitude.
• Connection routing and return routing, where applicable.
• Known power-line elevations and other vertical obstacles.
• Aircraft battery reserve needed for return.
• Whether the route crosses any area that becomes unsuitable after dark.

The source video specifically recommends that, when relying only on GNSS rather than RTK, the operator discontinue automatic return near the landing zone and complete the landing manually. Treat that as DJI video guidance for the demonstrated scenario, not as a universal FAA rule. Actual procedures should match the current aircraft manual, firmware behavior, site conditions and applicable authorization.

Step 10: Monitor the Operation View Continuously

Night operation increases dependence on the remote controller. Operators should be familiar with every major status indicator before beginning nighttime work. Review the DJI Agras T100–T50 Remote Operation View Tutorial and the Remote Control Activation and Management Tutorial.

Continuously monitor:

• Aircraft status bar: warnings and critical status.
• Connection strength: link health between remote and aircraft.
• GNSS/RTK state: positioning quality and changes.
• Aircraft battery: do not let night workload distract from energy reserve.
• Remote-controller batteries: internal/external battery condition.
• Task progress: route position and completed/remaining area.
• FPV image: visual context, while remembering that a camera cannot reveal every wire or hazard.
• Radar/obstacle information: useful sensor information, not permission to stop scanning or planning.
• Return path: especially when battery or material depletion triggers a return.

Power Lines: A Special Night Hazard

Never assume an Agras obstacle-avoidance system will reliably detect a thin wire, guy wire or power line—especially at night or in challenging geometry. These hazards should be identified during daylight reconnaissance and excluded from improvised flight paths.

If a line lies near the field:

• Identify the line, poles, span direction and likely wire height in daylight.
• Keep route planning conservative.
• Do not create return corridors that depend on last-second sensor detection.
• Do not manually “thread” the aircraft around wires after dark.
• Brief every crew member on the line location.
• Keep ground vehicles and loading operations away from electrical infrastructure.

Night Spraying and Spreading: Application Conditions Still Control

Night operation does not change the product label, application restrictions, drift requirements, buffer zones, state applicator rules or other chemical-use obligations. The aircraft may be able to maintain a route accurately while the atmospheric conditions are still unsuitable for the product being applied.

For spraying, evaluate actual:

• Wind speed and direction.
• Temperature.
• Humidity.
• Potential inversion/stable-atmosphere conditions.
• Nearby sensitive areas.
• Label-specific droplet, height, wind or time-of-day restrictions.

For spreading, review the DJI T100 Spreading System Programming and Calibration Tutorial. Night visibility does not change the need for correct feeder selection, material calibration, blockage prevention and post-task inspection.

Suggested Night Crew Workflow

Phase	Pilot	Ground crew / observer
Daylight prep	Verify field, route, obstacles, return path	Inspect landing zone, access roads, wires, equipment locations
Preflight	Aircraft health, positioning, battery, route, RTH	Lighting, loading area, exclusion zone, communications
Launch	Confirm status and controlled departure	Keep area clear and watch surrounding hazards
Task	Monitor flight, telemetry, route, battery, positioning	Monitor people/vehicles/animals and ground conditions
Return	Watch altitude, speed, path and positioning continuously	Clear landing zone; watch for new ground hazards
Turnaround	Confirm aircraft health before restart	Battery/material service and lighting checks
End of shift	Close task, review warnings/logs	Inspect aircraft and secure charging/chemical equipment

What to Do After a Night Crash

1. Stop the operation and control the scene

Do not rush toward a fallen aircraft simply because it is dark or because an expensive aircraft is involved. Keep other people, vehicles and animals away. Use remote lighting from a safe location to identify obvious hazards before approaching.

2. Determine whether electrical infrastructure is involved

This decision changes the entire response. If the aircraft is merely down in an open field, the crew can proceed with a controlled site assessment. If the aircraft, spray boom, cable, debris or any other part is touching or near a power line, treat the incident as an electrical emergency.

3. Ordinary obstacle crash

• Keep the aircraft powered down if it is already off.
• Approach only after confirming there is no electrical, fire, battery or chemical hazard.
• Do not immediately relaunch a crashed aircraft.
• Document the condition and warnings/logs.
• Contact an authorized service provider or Ares Acres for repair guidance when structural, propulsion, electrical, sensor or flight-control damage may exist.

4. Aircraft entangled in a power line

Do not attempt recovery. Do not use a pole, rope, ladder, tractor, loader, drone, boom or other object to retrieve the aircraft. Keep people and vehicles well away and contact the electric utility and emergency services as appropriate. Assume the line and aircraft are energized until the utility has made the scene safe.

5. Downed or broken power line

Do not approach the aircraft or conductor. A downed line can energize the ground and nearby conductive objects. Keep the area isolated, warn others away and contact the utility/emergency services. Do not touch fences, standing water, equipment or other objects that might be energized near the incident.

Important correction to the source transcript: the video mentions maintaining a 10 m distance from a fallen drone while assessing a crash. That should not be interpreted as a universal safe clearance for an aircraft involving electrical infrastructure. Voltage, conductor condition, ground conditions and utility system behavior vary. For a downed or entangled power line, the correct operational posture is to stay well clear, assume energized and let the utility control the hazard.

Stop-Work Conditions for Night Operations

Condition	Action
Pilot struggling to stay alert	Stop the operation; rest or rotate qualified crew
Unexpected people or vehicles entering field	Pause/stop task and re-establish controlled operating area
Positioning degrades or RTK behaves unexpectedly	Pause and diagnose; do not continue on assumption
Aircraft connection weakens unexpectedly	Reassess position, antennas, distance and route before continuing
New wire/obstacle discovered	Stop or pause; do not improvise a close manual bypass in darkness
Wind or weather changes beyond planned limits	Stop and reassess application and flight safety
Unresolved red/critical aircraft warning	Do not force task continuation
Landing-zone lighting fails	Restore a safe landing environment or terminate according to safe contingency procedure
Battery reserve becomes questionable	Return before the situation becomes critical
Power-line contact or suspected contact	Emergency response; keep away and call utility/emergency services

20-Point DJI Agras Night Operations Checklist

1. Confirm the operation is authorized under the correct U.S. regulatory framework.
2. Review any exemption, COA, Part 137 certificate/conditions and local/state requirements.
3. Inspect the field and landing zone in daylight.
4. Identify every known power line, pole, guy wire and cable.
5. Map or otherwise account for obstacles before darkness.
6. Prefer planned automatic route operation when appropriate to the field.
7. Avoid selecting a fragmented, manually intensive field for routine night work.
8. Verify takeoff/landing zone is open, flat and controlled.
9. Install ground lighting without blinding the pilot.
10. Complete the full aircraft preflight inspection.
11. Verify controller charge, aircraft connection and Device Health.
12. Verify GNSS/RTK status and intended signal source.
13. Verify home/return point, RTH altitude and return route.
14. Confirm aircraft battery reserve and field power plan.
15. Confirm actual weather/application conditions.
16. Wear appropriate PPE, lighting and footwear for the field environment.
17. Establish crew communication and fatigue controls.
18. Monitor aircraft status, battery, positioning, FPV/map and task progress continuously.
19. Monitor the entire RTH/return and landing sequence.
20. Stop immediately for fatigue, degraded positioning, unexpected obstacles, people, critical warnings or unsafe weather.

Night Operations Troubleshooting Matrix

Symptom	Possible concern	Operator response
FPV image provides poor obstacle detail	Low light, glare, contrast limits	Do not rely on FPV alone; use preplanned route and daylight obstacle survey
RTK status changes during task	Signal/source/network/base-station issue	Pause/reassess positioning before continuing; use D-RTK troubleshooting workflow
Aircraft starts unexpected return	Battery, link, task or system trigger	Monitor route, altitude and speed; identify trigger rather than assuming normal behavior
Pilot repeatedly loses orientation	Fatigue or poor visual cues	Stop operation; do not compensate by taking more manual control
Ground light creates screen glare	Poor lighting placement	Reposition light to illuminate landing zone without directly facing operator
Obstacle appears that was not mapped	Changing site conditions	Pause; land or replan as necessary rather than improvising a close bypass
Battery is depleting faster than expected	Payload, wind, temperature, route or battery condition	Return early and diagnose; preserve reserve for safe landing
Aircraft contacts wire/power infrastructure	Potential electrocution/fire hazard	Do not approach; assume energized; isolate area and call utility/emergency services

Frequently Asked Questions

1. Can a DJI Agras T100 fly at night?

The aircraft can technically operate in low-light conditions, but a lawful and prudent night mission depends on the applicable FAA authorization, aircraft configuration, field, weather, crew, lighting, obstacle environment and operating conditions. Capability is not the same as authorization.

2. Does Part 107 automatically allow a T100 to spray at night?

No. Part 107 night provisions do not by themselves create authorization for a heavy agricultural dispensing mission. Agricultural dispensing can fall under Part 137, and aircraft over the ordinary small-UAS weight threshold can require Part 91 operations and appropriate exemptions/authorizations.

3. Why is FAA Part 137 in the title?

Because spraying or dispensing qualifying agricultural products is a specialized agricultural aircraft operation. The operator should determine whether Part 137 applies and follow the certification and exemption framework for the actual mission.

4. What is Section 44807?

Section 44807 is an FAA exemption pathway used for certain unmanned aircraft operations that cannot simply be conducted under the ordinary Part 107 framework, including many operations involving UAS over 55 lb.

5. Do Part 107 night operations require anti-collision lighting?

For operations actually conducted under Part 107, FAA night rules include anti-collision lighting requirements and applicable pilot knowledge/training requirements. Heavy Agras agricultural missions may operate under a different or additional framework, so follow the exact authorization applicable to the mission.

6. Is night spraying always better in hot weather?

No. Night can bring cooler temperatures and sometimes lower winds, but it can also bring inversion conditions, reduced visibility and fatigue. Evaluate measured conditions and the product label rather than assuming nighttime is preferable.

7. Which fields are best suited to night work?

Large, familiar, previously surveyed fields with few obstacles and well-planned routes are better candidates than small fragmented plots requiring constant manual intervention.

8. Should I use Manual Mode at night?

The source video advises avoiding night operations in fields requiring extensive manual work whenever possible. If the mission depends on frequent manual obstacle bypassing, daylight is generally the better choice.

9. Should I use automatic Route Mode at night?

When the field and authorization permit it, a carefully planned automatic route can reduce manual workload. It does not remove the need for continuous supervision.

10. Can I rely on obstacle avoidance to see power lines?

No. Never build a night route around the assumption that obstacle sensors will reliably detect thin wires or power lines. Identify and account for them during daylight planning.

11. Should I map the field before night operations?

Yes, especially for unfamiliar or obstacle-bearing fields. Daylight mapping and reconnaissance improve route planning and hazard recognition.

12. Is RTK required for night operations?

Not as a universal statement. The source video recommends RTK for precise positioning during automatic return, but the exact requirement depends on aircraft, task, authorization and site. RTK should be treated as a precision tool, not a safety guarantee.

13. Does RTK guarantee the drone will land on the exact point?

No. RTK improves positioning accuracy but does not eliminate setup errors, signal issues, route hazards, environmental changes or the need to monitor the landing.

14. What should I do if RTK drops out at night?

Pause or terminate the task as appropriate and diagnose the positioning state before continuing. Do not assume the aircraft will behave exactly as it did under high-precision RTK.

15. What does the video say about GNSS-only return?

The video recommends discontinuing automatic return near the landing area and completing the landing manually when using GNSS-only positioning. Treat this as scenario-specific DJI guidance and verify the current aircraft manual and operating conditions.

16. Why should I light the takeoff and landing zone?

Ground lighting helps the crew see the aircraft, landing surface, people, equipment, debris and trip hazards. Position lights so they do not blind the pilot.

17. Can a headlamp replace aircraft lighting?

No. A headlamp is ground-crew equipment. Aircraft lighting requirements under the applicable FAA framework are separate.

18. What clothing should a night Agras pilot wear?

Use clothing and PPE suitable for the weather, terrain, chemicals and local hazards. Long sleeves/pants, suitable insect repellent, headlamp and high-traction waterproof footwear can be useful in many environments.

19. Does waterproof footwear protect against snakes?

It can help with wet terrain, but ordinary field footwear should not be represented as guaranteed protection against venomous animals. Use site-appropriate protective practices.

20. How should I control mosquitoes?

Use appropriate insect-repellent and protective-clothing measures. The source transcript’s “Florida water” reference is treated here as a generic example rather than a required product.

21. How do I manage pilot fatigue?

Plan breaks, hydrate, avoid unnecessarily extending a long daytime shift, rotate trained crew when practical and stop if attention or alertness is degraded.

22. Should I use a visual observer at night?

A trained observer or spotter can improve situational awareness where appropriate and permitted, but crew roles must fit the authorization and the remote pilot remains responsible for the operation.

23. What should I monitor during automatic RTH?

Monitor position, altitude, speed, battery, connection, route and the landing area. Automatic return should not become unattended return.

24. What if the aircraft crashes in an ordinary field?

Control the scene, identify electrical/fire/chemical hazards before approach, document the aircraft condition and do not relaunch until the cause and airworthiness are understood.

25. What if the drone is hanging from a power line?

Do not attempt recovery. Keep everyone well away, assume the aircraft and line are energized and contact the electrical utility and emergency services as appropriate.

26. Is 10 meters always a safe power-line distance?

No. The video’s 10 m crash-assessment example is not a universal electrical-clearance rule. Downed or entangled lines require utility-controlled response and a conservative stay-clear posture.

27. What if a power line is broken after a crash?

Do not approach. Keep people and vehicles away, avoid contact with nearby conductive objects or standing water, and contact the utility/emergency services. Assume energized until formally made safe.

28. Can I retrieve an Agras from a line with a rope or loader?

No. Do not use ropes, poles, ladders, loaders, booms or other equipment to recover an aircraft from electrical infrastructure.

29. Does night operation change pesticide label requirements?

No. Follow the product label and applicable federal, state and local requirements, including any wind, droplet, buffer or application restrictions.

30. Where can I learn the rest of the T100 operating workflow?

Use the Ares Acres DJI Agriculture Tutorials library for preflight, remote-controller, D-RTK 3, Route Mode, A-B Mode, Manual/M+, spreading, power-system and lifting tutorials.

Continue Learning: Ares Agras Operator Academy

• DJI T100–T50 Pre-Flight Safety Tutorial — inspect the aircraft and operating area before flight.
• DJI Agras T100 D-RTK 3 Tutorial — activation, linking, PPP, Network RTK and custom coordinates.
• Route Mode Field Planning & Task Execution — build reusable fields, obstacles and automatic routes.
• A-B Operation Mode — quick route creation for regular fields.
• Manual & Manual Plus Operations — understand M and M+ behavior.
• Remote Operation View — aircraft health, RTK, battery, telemetry, maps, radar and FPV.
• Remote Control Activation & Management — teams, flight records, documents, templates and device management.
• T100–T50 Power Supply Tutorial — batteries, chargers, generators and field energy workflow.
• T100 Spreading System Programming & Calibration — feeders, tare, material calibration and troubleshooting.
• T100 Transportation & Lifting Interface Tutorial — cargo points, swing control, payload monitoring and calibration.

DJI Agras Aircraft, Parts & Support

Night operations place a premium on aircraft reliability because the operator has less visual information available to detect a developing problem. Before a high-utilization season, inspect and replace damaged or questionable components rather than normalizing warnings or vibration.

• DJI Agras T100
• DJI Agras T100 Full Set
• DJI Agras T50
• DJI Agras T100 D-RTK 3 High-Precision GNSS Mobile Station
• DJI T100 Parts
• DJI Agras OEM Parts
• DJI Accessories
• Ares Acres Product Catalog
• Ares Acres Technical Support / Contact

What Is Ares Acres?

Ares Acres is a U.S.-based agricultural robotics and DJI Agras parts company focused on helping operators keep agricultural drone fleets working through aircraft, OEM parts, batteries, power equipment, technical content and operator education. The Ares Agras Operator Academy converts short-form training and field experience into detailed, searchable technical resources that operators can reference before, during and after the season.

If you are planning a T100 or T50 operation, diagnosing an aircraft issue, sourcing a replacement component or building a complete battery/charger/generator workflow, contact Ares Acres for support.

Regulatory & Safety Review Note — August 2026

This guide distinguishes DJI training-video recommendations from U.S. regulatory requirements. FAA rules, exemptions, COAs, operating limitations and agricultural aircraft certification processes can change. Operators should review the current FAA documents and the exact authorization applicable to their aircraft and mission before operating.

Safety disclaimer: This article is educational material, not legal advice, an FAA authorization, a pesticide-label substitute, electrical-safety training or a replacement for the current DJI manual. Never approach or attempt to recover an aircraft that is touching or may have energized electrical infrastructure. For electrical-line incidents, keep the area clear and contact the electric utility/emergency services.