Case Studies
Agricultural Spray Drone
Flight testing of a large agricultural multirotor. The rotor downwash lifts a sheet of dust off the ground.
What we looked at first
For a large agricultural airframe, the test that matters is not stability. It is downwash. The rotors lift a sheet of dust off the ground, which means spray will be carried and scattered the same way.
So what we tested was the altitude and speed at which the spray pattern stays controllable. That number sets the working rate, and it also decides whether the job is viable on a given plot at all.
The aircraft
A large agricultural multirotor. It is visibly bigger than the ducted airframes we build ourselves — this class carries liquid as its payload, so take-off weight is high and rotor diameter and speed scale with it.
What the video shows
Filmed on grass beside greenhouses. As it lifts, the rotor downwash raises a broad sheet of dust off the ground, clearly visible in frame.
That dust is not just a visual. Downwash is the central variable in spray work: it decides whether the liquid penetrates the canopy to reach the lower plant, and whether it drifts somewhere it should not. The relationship between altitude, speed and downwash strength is the main thing to tune in this kind of operation.
This is a flight test
No spray is released in the footage. This is take-off and hover testing of the aircraft, not a spraying operation.
More detail
Aircraft specifications, area coverage, service regions and whether we offer contract spraying are best discussed through the contact form.