Drone On-Site Pre-Flight Checklist: What to Check Before Take-Off

Last updated: November 2026

Planning at home gives you an initial idea of whether a flight should be possible. The on-site survey is where you compare that plan with the real location and decide whether it is still safe and suitable to proceed.

A field that appeared empty may now contain walkers or livestock. Satellite imagery may not have shown a cable, fence or change in public access. The weather may not match the forecast, and equipment can be damaged or loosened in transport.

When you arrive, take a few minutes to familiarise and orientate yourself with the site and with the planning you did during your pre-site checks. Look at the hazards, weather, take-off area and proposed route before unpacking and preparing the aircraft.

If you have not completed the planning stage, start with our guide to planning a drone flight before you leave home.

On-site drone checklist at a glance

Before take-off, confirm that:

You are at the intended location
The airspace and temporary restrictions have been rechecked
You still have any necessary permission to use the land
The site is suitable for the proposed flight
Your planned route can remain within Visual Line of Sight
People, animals, vehicles and crewed aircraft can be kept clear
The take-off and contingency landing areas are suitable
The weather and visibility remain acceptable
The aircraft, propellers and battery are undamaged
The batteries have sufficient charge and are performing normally
The controller and aircraft have connected correctly
No warning remains unexplained
The GPS position and home point are correct, where applicable
Return-to-Home and failsafe settings suit the location
You are fit, prepared and comfortable proceeding

Keep the FPV UK Drone Checklist on your phone or with your flying equipment until the routine becomes familiar.

Recheck the airspace and permission

Check TheDroneMap.com again when you arrive, where connectivity allows. This can help you identify temporary information that may not have been present when the flight was planned. If you cannot obtain a connection at the site, make sure the relevant information was checked shortly before travelling.

TheDroneMap.com does not grant permission, approval, authorisation or clearance to fly. A Flight Report is not a NOTAM. You remain responsible for checking the applicable requirements and obtaining any necessary permissions before flying.

Make sure you are at the intended location and that you still have any necessary permission to take off and land. If the site is being used differently from expected, reconsider the plan before setting up.

Walk and assess the flying area

Online research cannot replace looking at the location yourself. Walk enough of the site to understand the take-off area, proposed flight path and nearby hazards.

Look for:

Overhead cables, power lines and pylons
Trees, branches, buildings and masts
Steel structures and possible sources of interference
Roads, vehicles, footpaths and public access
People who are not involved in the flight
Livestock, pets and wildlife
Low-flying or approaching crewed aircraft
Uneven ground, long grass, mud or standing water
Whether Visual Line of Sight can be maintained throughout the planned flight

Power lines, pylons, masts and other sources of electromagnetic interference can also affect navigation, communication or control systems. Allow a suitable distance and follow the aircraft manufacturer’s guidance.

Some hazards are easy to miss from the take-off point. A cable may blend into the background, or a public path may enter the area behind a hedge. Give yourself enough time to notice these before the aircraft is in the air.

Do you need to complete a risk assessment?

For most straightforward recreational flights, you will not need to complete a formal written risk assessment. However, thinking through the risks is an important part of deciding whether the flight can proceed safely.

Under the FPV UK Article 16 Operational Authorisation, a simple risk assessment is required when flying within a built-up area used only for recreational purposes, such as certain public parks or gardens. It does not need to be a lengthy document and can often be completed in a few minutes.

A simple risk assessment involves:

Listing the hazards you have identified.
Considering how serious the outcome could be.
Considering how likely it is to happen.
Identifying practical steps that could reduce the risk.
Reassessing the risk after those steps have been applied.
Deciding whether the remaining risk is acceptable.

For example, if members of the public could enter the proposed flying area, you might reduce the risk by moving the take-off point, shortening the flight, changing the route or waiting until the area is quieter.

FPV UK provides risk-assessment guidance, a completed example and a blank template.

The purpose is not to produce paperwork for its own sake. It is to identify what could go wrong, take proportionate steps to reduce the risk and make a more informed decision about whether to fly.

If you are flying using FPV

If you are flying using First Person View in the Open Category, make sure your observer understands their role before take-off. They must remain alongside you, be able to communicate directly and maintain unaided sight of the aircraft and surrounding airspace.

An observer cannot be positioned farther away simply to extend the flight beyond the normal Visual Line of Sight range. You remain responsible for the safety of the flight. Read the CAA guidance on flying using FPV and check whether different conditions apply if you are flying under an operational authorisation.

Choose the take-off and landing areas

Select a clear, stable surface with enough space to launch and recover the aircraft safely. Keep away from loose material that could be blown into the propellers, motors or camera.

If the ground is wet, dusty or covered in long grass, a suitable landing mat or platform may help. Make sure it is stable and will not become a hazard itself.

Identify a contingency landing location as well. Ask yourself where you would land if somebody entered the main area, the battery fell faster than expected or the aircraft developed a problem.

Neither the primary nor contingency landing area should create a new risk to people, property, vehicles or animals.

Reassess the weather

The forecast was part of your plan; the conditions in front of you are what matter now.

Pay attention to wind direction, average strength and gusts. A handheld anemometer can be useful, but remember that a reading taken beside you may not represent the wind above trees, buildings or slopes.

Check visibility, rain, mist, temperature and sun glare. If the conditions are close to the aircraft’s limits or your own ability, wait or return another day.

Our guide to how windy is too windy to fly a drone explains how to consider gusts, conditions at height and the return journey.

Inspect the aircraft after transport

Even if the aircraft was checked at home, inspect it again after taking it out of its case.

Check:

The airframe, arms and landing gear for cracks or looseness
Motors for debris and free movement
Propellers for chips, cracks, bends or incorrect fitting
Cameras and sensors for dirt, moisture or damage
Battery contacts for contamination or damage
That the correct battery is undamaged and securely locked
That any additional equipment is secure
That the aircraft remains within the weight limits that apply to the flight

If you are unsure whether a component is safe, do not fly until it has been checked, repaired or replaced.

Power up and read the warnings

Follow the manufacturer’s recommended power-up sequence. Once connected, take time to read the messages on the controller or app rather than dismissing them automatically.

Confirm that:

The controller and aircraft have connected correctly
The controls respond as expected
The intended flight and control modes are selected
Battery levels are sufficient for the planned flight
Obstacle sensors and other systems show the expected status
No warning remains unexplained

Read every warning or prompt and understand what it means before continuing. Do not dismiss a warning simply because the aircraft appears ready to fly.

Do not calibrate the compass simply out of habit. Follow the manufacturer’s instructions and investigate warnings about calibration or interference. Metal structures, reinforced concrete, vehicles and buried services can affect the local environment.

Confirm GPS, home point and map position

For a GPS-equipped aircraft, wait for a reliable position before take-off. Confirm that the home-point notification has appeared and that the position shown on the map matches your actual location.

Do not assume the correct home point has been recorded because the aircraft appears ready. If Return-to-Home is triggered, an incorrect point could send it towards the wrong location.

Not every aircraft uses GPS or an automatic home point. If yours does not, make sure you understand the positioning and failsafe systems it does use.

Check Return-to-Home and failsafe behaviour

Know what the aircraft will do if:

The control signal is lost
The battery becomes low or critical
Return-to-Home is activated
The positioning signal becomes unreliable

Set a Return-to-Home height that accounts for relevant trees, buildings and other obstacles without exceeding the applicable height limit. Consider the route the aircraft would take, not only the number entered in the app.

Return-to-Home behaviour varies between aircraft. Check the manual rather than assuming that every model will climb, return or land in the same way.

Complete the final take-off check

Immediately before launch, take one final look and listen. Confirm that nobody has entered the area, the weather and visibility remain suitable and there is no nearby crewed-aircraft activity.

Check that the battery is locked, the propellers are clear, the home point is correct and every warning has been understood or resolved. Make sure you can maintain Visual Line of Sight along the proposed route.

It is good practice, even when flying alone, to call “clear props” before starting the motors. If other people are nearby, calling “taking off” lets them know what you are doing.

Where appropriate for the aircraft and location, a Control Test after take off, consisting of small movements testing the Forwards & Backwards (Pitch), Side to Side (Roll) and Yaw (Rotation) can confirm that the aircraft sounds normal, responds correctly to stick inputs and holds position before moving off and further away. Avoid carrying out unnecessary control movements in a confined area. If it drifts, vibrates, sounds unusual or displays a warning, land and investigate.

When should you decide not to fly?

Keep the aircraft on the ground if:

The aircraft, propellers or battery are damaged
A warning cannot be explained or resolved
The weather or visibility is unsuitable
The site is busier or more hazardous than expected
Crewed aircraft are operating nearby
You do not have the required permission
You cannot maintain Visual Line of Sight
You feel unwell, rushed, stressed, distracted or uncertain

Cancelling or postponing a flight is not overcautious. It is often the clearest sign that a pilot is assessing the situation properly and acting responsibly.

Trying to continue when something does not feel right is one of the issues covered in our guide to common beginner drone mistakes and how to avoid them.

Turn the checklist into a habit

An on-site check should feel like a calm routine rather than a hurdle between you and the flight. Following the same order each time makes it easier to notice when something is different.

Use this guide alongside our drone flight-planning checklist and download the FPV UK Drone Checklist to keep with your flying equipment.

If you want to develop your preparation and flying skills further, explore the FPV UK Certificate of Competency and the FPV UK Handbook.

Frequently asked questions

What should I check immediately before flying a drone?

Check the real site conditions, airspace, permission, weather, people and hazards. Inspect the aircraft and battery, read every warning, confirm the home point and failsafe settings and make sure you can maintain Visual Line of Sight.

Do I need to complete a drone risk assessment?

Not for every straightforward recreational flight. A simple written risk assessment is required for certain flights under the FPV UK Article 16 Operational Authorisation, including flights within a built-up area used only for recreational purposes. Even when one is not required, understanding this methodology and thinking through the hazards and how to reduce them is good practice.

Should I calibrate my drone’s compass before every flight?

Not automatically. Follow the manufacturer’s instructions and calibrate when required. If the aircraft reports interference or a calibration problem, investigate the cause rather than repeatedly recalibrating beside metal structures, vehicles or reinforced concrete.

How do I choose a Return-to-Home height?

Choose a height that allows the aircraft to clear relevant obstacles on its expected return route without exceeding the applicable height limit. Check the aircraft manual because Return-to-Home behaviour differs between models.

When should I cancel a drone flight?

Do not take off if the aircraft is damaged, a warning cannot be resolved, permission is missing, VLOS cannot be maintained or the site and weather are less suitable than expected. You should also postpone if you feel rushed, unwell or uncertain.

Disclaimer: This guide is provided for general information only and is based on our best efforts at the time of writing. Rules and requirements can change, and you remain responsible for ensuring that your flying is safe, legal and compliant with all applicable regulations.