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The yellow Spray One flying low over a soybean field at sunrise while spraying

From Paraguay to the world

Spray
One

A 300-liter crop sprayer with no pilot on board. The first in South America.

Invest in the projectMeet the S1

A crop-spraying aircraft. Nobody on board.

A large UAV (unmanned aerial vehicle): an ultralight turned into an autonomous sprayer. It takes off, sprays and returns on its own, guided by an AI flight computer.

Developed with the support of the Aeronautical Engineering program at the Polytechnic School of the National University of Asunción.

Spray One head-on in the hangar, wings spread and the spray boom running tip to tip
of product per load
300 L
application rate
90 ha/h
per working day
~1,000 ha

More than a drone. For far less.

A drone falls short for thousands of hectares. The S1 runs on gasoline and keeps working.

Load per flight
Spray One300 L
Large farm drone70 to 100 L
Flight on one load
Spray OneUp to 3 h
Large farm drone~15 min per battery

In the field

View the comparison

With a farm drone

Energy

Batteries worth thousands of dollars.

What you have to bring

Batteries, a generator and a charger.

Size

About 3 meters.

With the Spray One

Energy

97-octane gasoline, from any station.

What you have to bring

A can of gasoline.

Size

A 12-meter wing.

Reference drone: the largest farm models on the market.

Specifications

S1 · 12 m × 6 m

Aircraft
Autonomous UAV
Payload
300 L
Power
60 HP
Endurance
3 h of flight
Spraying
Wind-driven pump
Dimensions
12 m × 6 m
Fuel
97-octane gasoline
Application
Up to 90 ha/h
Stall speed
60 km/h

One mission, four steps.

FieldPassesStrip
  1. 01

    Planning

    The field is marked and the system works out the passes.

  2. 02

    Autonomous take-off

    It takes off on its own from a grass or dirt strip: 150 m is enough.

  3. 03

    Spraying

    It flies low, pass after pass, only over the crop.

  4. 04

    Return and report

    It lands and logs the job: hectares, liters and flight path.

Spraying as a service.

No aircraft to buy: the S1 comes to your farm with all its equipment, sprays and moves on.

Spray One parked on a grass strip next to a soybean field at sunrise, with the pickup truck that brought it
  1. Pickup and trailerIt travels by road.
  2. Ground stationPlans the field and tracks the flight.
  3. Spray OneSprays on its own, nobody on board.

Size your field

Set the hectares and the dose to see how long the S1 takes.

300 ha
Dose (L/ha)
Spraying time
3 h 20 min
Tank loads
10
Working days
Less than 1

An estimate, without transit or refills.

Gerardo Monzón Manzoni holds up the signed agreement in the workshop, next to the prototype's frame
We are showing that in Paraguay, with engineers and students from our university, cutting-edge technology can be built for agriculture.
Gerardo Monzón Manzoni, Eng.CEO of AgroAI · Project lead

Built by Paraguayan engineers and students.

In partnership with the Polytechnic School of UNA.

  1. 01The agreement

    Gerardo Monzón signs the agreement in the Aeronautical Engineering office at FP-UNA

  2. 02The team

    The team gathered in a university classroom

  3. 03Engine and frame

    Students working on the prototype's engine and frame
    The workshop from above: students lift the engine and propeller into place

  4. 04The tank

    Part of the team next to the prototype in the workshop

  5. 05First showing

    AgroAI and UNA stand at a fair, with part of the team

  6. 06The S1 takes shape

    The prototype with its yellow tank and the AgroAI and Spray One logos, next to the project poster
    The team working around the prototype, seen from above
    The team in project shirts next to the prototype and the poster

  7. 07AgroAI joins the UIP

    Gerardo Monzón shows the Paraguayan Industrial Union certificate welcoming AgroAI

Roadmap

Where the S1 is today and what's left.

Stage 1 of 6Prototype under construction

  1. Now · 2026

    Prototype under construction

  2. Next stage

    Ground testing

  3. Next stage

    First autonomous flight

  4. Before launch

    Certification

  5. 2027

    Service in Paraguay

  6. Then

    South America

In the press

What's been published about the project.

Already backing the project.

Add your company
Soybean field at dusk, with a blue sky and the last glow on the horizon

Let's get the first S1 flying.

Paraguayan technology for South American farms. Invest, partner with us or reserve hectares: let's talk in person.

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