The Ultimate Buyer’s Guide: How to Choose the Right Agricultural Drone for Your Farm

At the moment, drone technology is revolutionizing World agriculture. According to the FAA, agricultural drone registrations have outpaced other commercial categories by a wide margin over the last 3 years. Nevertheless, quite a few farmers are making wrong choices when purchasing their drones. They usually select a drone based on its price or the popularity of the brand, instead of fitting it with their actual needs. This article changes that perspective. It helps you decide on the best agricultural drone for your needs even before you pay for it.

What are the 4 main kinds of agricultural drones?

Farm drones are not one-size-fits-all. Before you get into the specs, see which category of tasks you want to be covered. Different kinds are designed to handle respective tasks and come with different equipment to do them well.

Precision Agriculture Drone (Mapping)

The mapping drone deployed for precision agriculture is the kind that gathers data. It comes with an autopilot that carries out methodically pre-set patterns of flight over your field and a camera that takes high-resolution photos, which are later turned into field maps through processing.

Such maps can indicate the variations in the crop health, show moisture level in the soil, changes in topography, as well as stress zones that are not visible from walking on the ground.

Think of this one if one thing you really want, besides managing your large acreage, is the actual input decisions based on the real field data, rather than an approximation.

Spraying Drone

A spraying drone comes with a liquid tank and a pump system to apply pesticides, herbicides, or fungicides directly over crops. The size of the liquid tank is usually between 16 and 30 liters, depending on the model. Flight paths are GPS-guided and keep the spray lines consistent and overlapping, resulting in chemical coverage that is better with less waste compared to boom sprayers on the ground.

This is what you need if you spray your crops with chemicals on a regular basis and want to minimize the amount of chemicals used, the labor cost, and the time from when you spot the pest to actually dealing with it. E-FLY's spraying drones have been demonstrated to enhance pesticide utilization by more than 30% in comparison with manual application due to their capability of maintaining consistent droplet distribution throughout the entire flight path.

Fertilizer Drone (Spreading)

A fertilizer drone works with a granule spreading mechanism and not the liquid tank. It distributes dry fertilizers, seeds, or soil amendments at the desired rate. The distribution disc together with the flow control system alter the output according to the flight speed so that the application rates remain even irrespective of wind or ground slope.

This one is for you if you practice top-dressing with dry fertilizers, you also overseed pasture, or maybe you have to apply granular soil amendments on fields that are too wet or too steep for ground equipment. E-FLY models such as the LV20 and LV30 carry a 40 L granule spreading box co-located with their liquid tanks, so you have both functions in one single airframe.

Irrigation Drone

No irrigation drone is able to fully replace a permanent irrigation system; irrigation drones supplement the system in a few ways: they help cover areas where regular systems can not reach, they provide a response to drought stress that is localized, and they also get to the places where it is not feasible to lay down pipes.

Think about this one mainly if, among other agricultural practices, you are running orchards, vineyards on hills, or scattered plots in the US West or Southeast, where access to water is uneven.

Check out the four different types of drones working in association with various terrains on e-flytec.com/application.html.

How Do You Choose the Right Agricultural Drone? Key Selection Criteria

After identifying your drone type, you need to see what the technical features of the drone are and if they can suit your farm conditions. The top four things that count are:

Payload Capacity: Match the Tank to Your Acreage

Payload capacity tells you how much the drone is able to load with liquid or granules for each flight. The bigger the payload, the more land you will be able to go through on the same amount of battery, which will have a direct impact on your cost per acre.

Small drones with around 16L capacity are great for use in hilly areas, in orchards, and in fields with different shapes. Their lighter weight also makes them easier to handle in very small spaces and transport and set up by one person. Large drones with a capacity of 20L to 30L can be used on large and flat fields where you want to cover more acres per hour, and have fewer refilling breaks.

Here is a quick reference to match the payload to the farm type:

Choosing a drone with more payload than your terrain can handle wastes battery and reduces control precision. Choosing too small a tank means constant refills that break your spraying window.

Durability and Frame Quality: Why Carbon Fiber Matters

Your drone frame is the component that physically comes under the most strain in the whole machine. It takes the brunt of your landings and holds up against the vibration of the rotors.

Compared to aluminum, the carbon fiber frame has a much better resistance to chemical corrosion. Over time, pesticides and liquid fertilizers that contain acids and oxidizing agents cause pitting and weakening of aluminum.

Besides corrosion, carbon fiber also has a natural ability to absorb rotor vibrations before they affect your flight controller and inertial measurement unit (IMU). This leads to better GPS positioning and more uniform spray lines. At E-FLY, every agricultural drone frame is crafted using carbon fiber and aviation-grade aluminum reinforcements.

Ease of Use: Single-Person Operation is Non-Negotiable

Lean operations of many U.S. farms might mean you don't have a drone technician on hand or a spare person to help with the setup. Your drone should be operable by just one person without the need for special tools or a complicated startup process.

E-FLY drones have been made with the single-person portable operation in mind. The frame folding horizontally collapses to a handy transport size and unfolds to the flight position without disassembling or reconnecting anything.

When looking for the ease-of-use features, make sure to consider:

● Single-person transport made possible by a folding arm design

● Modular component replacement without using special tools

● Simple flight control interface with pre-programmed flight modes

● Quick-release tank system for rapid refills

● Clear LED status indicators are visible in full sun glare

Battery Life and Charging: Protecting Your Spray Window

Spray windows in US agriculture are really narrow. Temperature, wind speed, and crop growth stage only allow for a small time window in which the application can be most effective. A drone that spends more time charging than flying will essentially break that window.

The ratio you want to keep an eye on is charging time versus flight time. Most high-quality agricultural drones can provide you with a flight time of 10 to 15 minutes on one charge with a full payload.

A full day spraying setup in the US Midwest might look like this:

● Two to three batteries per drone are being rotated.

● Smart charger that can get to 80% capacity in 25 to 30 minutes

● One battery is flying while the other is charging

● No idle time between flights

If a drone manufacturer cannot tell you exactly how long it takes for the drone battery to be charged at 80% and 100% capacity, that is a red flag. E-FLY drones work using such a rotation pattern, and so you always have continuous coverage without waiting for power.

Conclusion

Purchasing an agricultural drone without tailoring it to your specific task and environment is the most common and costly mistake among US farmers. Start with the type of job you want to do, be it mapping, spraying, fertilizing, or irrigation. Then align the payload with your field size, make sure the frame can stand up to your chemical environment, check that it is operable by a single person, and ensure that the battery system allows for a day of continuous work in the field without any breaks.

With over ten years of experience in manufacturing agricultural drones and frames, particularly for such conditions, E-FLY is your go-to brand. Check out their entire assortment of spraying drones, fertilizer drones, and precision agriculture solutions at e-flytec.com and choose the one that will meet the needs of your ‍‌farm.