Both liquid and granular products. The most common liquid applications are fungicides, insecticides, foliar fertilizers, and herbicides. Granular applications include broadcast cover crops and fertilizers.

Dependent of the drone series you select, our drones can apply 0.25 – 15 gallons per acre of liquid product and 3 – 300 pounds per acre of granular product. Low volume rates (typically 2 gallons per acre) are the most common use for our drone series. Due to the prop wash designed to distribute and penetrate the product across and through the canopy, we have found very high efficiency with a wide range of products at a low volume rate.

As a rule of thumb, 2 gallons per acre (GPA) is commonly labeled as the carrier volume for most aerial applied products. The max realistic efficiencies at 2 GPA are listed below. These include landing and refill time.

• T10: 15 acres per hour
• T30: 30 acres per hour
• T40: 40 acres per hour

At a lower GPA, the efficiencies for each drone will increase slightly, at higher GPA the efficiency will decrease.

• T10: 10-liter (2.6 gallons) liquid capacity and 3-gallon granular tank, which converts to approximately 20 lbs. of granular material.
• T20: 20-liter (5.2 gallons) liquid capacity and 5.2-gallon granular tank, which converts to approximately 35 lbs. of granular material.
• T30: 30-liter (8 gallons) liquid capacity and 10.5-gallon granular tank, which converts to approximately than 70 lbs. of granular material.
• T40: 40-liter (10.5 gallons) liquid capacity and 

Drones utilize a vortex effect created by the rotor wash to help spread out and distribute the atomized liquid across a swath that is wider than the actual drone. The swath is affected by this vortex effect along with application height, nozzle selection, spray rate and spraying speed.

Below are the max swath widths for each drone model when spraying at 10-13 ft. over the crop canopy.

• T10: Swath width up to 5 meters (16.4 feet)
• T20: Swath width up to 7 meters (23 feet)
• T30: Swath width up to 9 meters (29.5 feet)
• T40: Swath width up to 9.75 meters (32 feet)

The spread pattern of the granular spreader varies widely depending on product and drone elevation, typically ranging from 20-35 ft.

Nozzle selection, product density and calibration will affect the max pump output. Below are max pump outputs for each drone model.

• T10: 2.4 liters (0.63 gallons) per minute
• T20: 6 liters (1.58 gallons) per minute
• T30: 8 liters (2.11 gallons) per minute
• T40: 12 liters (3.2 gallons) per minute

Pumps are operated with brushless motors that automatically adjust spray rate in accordance with flight speed. Electromagnetic flow meters ensure the rate is kept accurate.

• T10: Weighs under 55 lbs. (24.9 kg.)
• T20: Weighs 42 lbs. (19 kg.) empty and 105 lbs. (47.2 kg.) when fully loaded.
• T30: Weighs 58 lbs. (26.3 kg.) empty and 168 lbs. (76.5 kg.) when fully loaded.
• T40: Weighs 83 lbs. (33 kg.) empty and 220 lbs. (100 kg.) when fully loaded.

During manual flight, a drone can fly up to 33 feet per second or 22.5 mph. Automated operation allows speeds up to 23 feet per second or 15.5 mph. At this speed, our drones can still follow slopes up to 30 degrees, while sensing obstacles in their flight path.

The T40 can spray faster than other Agras models at a rate of up to 32.8 feet per second or 22 miles per hour during automated operation.

Each of our drones have First Person View (FPV) cameras designed to provide the operator with a live view on the controller screen. FPV cameras support up to a 2-mile range, which is extremely useful when spot spraying weeds.

Note, FPV cameras cannot be used to map fields. We also do not recommend using sprayer drones to scout fields as smaller, less expensive drones with better cameras are better suited for that specific task.

The T40 does have one camera mounted on a gimble which can be used to do limited crop scouting and map fields using the T40 remote to process imagery.

T10: Light and portable

Designed with a swappable liquid tank, the T10 is the lightest and easiest sprayer drone to transport on market. This makes it ideal for small test plots and spot spraying applications, where the drone will need to be regularly packed up and moved from field to field throughout the day.

T30: Power and portability

The T30 is tested and proven in the field. It is easy to transport, yet big enough to do large acreage. The T-Jet nozzles give the T30 versatility for many different spray jobs.

T40: The BIG dog

The T40 is big, fast and packed with so many features never before seen on one spray drone platform. It can spray large fields, carry 100 lbs. of fertilizer, and create and process imagery. This is the most advanced spray drone in the world!

Overall, the drone is built to last. There are no major wear parts on the drone. Simply put, if you take care of it and don’t crash it, you will not have to replace any parts for a long time.

All drone parts are replaceable and modular. If you do need to replace parts it can be done easily and affordably. Below are details about a couple of parts that might need replaced over time.

• According to the manufacturer, the batteries for the T30 will last for 1,000 charge cycles.
• All the drone motors are brushless. Industry-standard service life for brushless motors is 10,000+ hours.
• We have seen electronic speed controllers (ESC) which control the motors go out after 150 hours, but most will last over 300 hours.
• Props may need replaced when chipped or cracked but should last for multiple seasons.
• Spraying system parts (tips, hoses, and pump diaphragms) may need replaced after a couple of seasons.

We have a full-time drone technician on staff to repair drones and get our customers parts. If you need parts or your drone needs serviced, email support@agrispraydrones.com.

Most fixes are easy to make yourself. These drones are modular, so you can simply pull the part off and put the new part on. Typically, no diagnostics or calibrations are needed. If there is something more complicated, our technician can help you through the process of fixing the issue yourself.

All our sprayer drones feature incredibly intuitive software and controls for both manual operation and fully autonomous operation. That’s right! Our drones will not only fly but spray/spread completely by themselves. You simply input a field boundary and its parameters. Boundaries can be imported from shapefiles or manually created on the remote.

Each of our drone models feature industry leading obstacle avoidance utilizing Digital Beam Forming (DBF) radars. These radars can sense obstacles as small as 1 cm in diameter, causing the drone to either stop and alert the operator or automatically fly around the obstacle.

• T20: Senses obstacles 360, laterally around the drone
• T10 and T30: Incorporates an upwards facing radar designed to sense obstacles in all directions

In general, for a whole field operation, there are six steps:

1. Make sure you have a good including generator, premixed tank with pump on site.
2. Map your field boundaries. This can be done ahead of time creating shape files, on the remote using aerial imagery, or on-site with the drone or remote.
3. Set your parameters for that operation (flight height, direction, speed, and application rate).
4. Tell the drone how much to spray and set it for takeoff.
5. The drone will fly and return to home autonomously or can be landed manually.
6. Refill the tank as needed and replace the batteries and recharge them on-site.

The drone can be flown in manual or manual + modes for spot application.

About three miles. This may decrease substantially when operating close to the ground or with interference from trees. However, you will never operate this far away. The furthest most pilots will operate will be one mile. Range extenders are available for the remote controllers to increase signal when operating close to obstructions. 

Within inches. The standard GPS on the drones is unique in pulling signal from about 18 to 26 satellites using three sources, GNSS, GLONASS and Galileo, simultaneously.

Most people find the standard GPS more than enough. However, if you want more precision, the drone is set up for real-time kinematic (RTK), which limits inaccuracy to centimeters. You can purchase a DJI RTK base station from Agri Spray Drones or use a third-party cellular RTK service.

Under the 107 license, the Federal Aviation Administration (FAA) limits one pilot to operating one drone at a time. There are exemptions, though. If those are met, a pilot can legally operate up to three drones. The T10 and T30 allow one remote to control up to three drones autonomously in the field, though multiple remotes could be used.

Note that it would be difficult to operate three drones at once by yourself. You will want someone with you to help refill charged batteries, mix chemical, etc.