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From flight to work / 04

Does a bigger tank mean better spraying?

Capacity affects replenishment, while application quality depends on delivery to the intended target.

5 minResearch reviewed through 5 November 20269 sources
On this pageCarried material is not deposited materialA different field changes the comparisonManufacturers arrived through different routesScale the aircraft and connect the farmEvaluate the complete working dayFollow the cause and effectSources for this lesson
Sir Airffic Go
Sir Airffic Go

Let us distinguish how much an aircraft carries from how well it delivers material to the target.

From the evidence

Carried material is not deposited material

Spraying delivers liquid droplets to an intended target. Deposition means material reaching and remaining on that target; drift means material moving away from it. The amount leaving a tank is therefore different from the amount delivered where it is needed. Capacity measures only the available load.

A review of agricultural drone spraying describes interactions among wind, crop structure, droplets and aircraft airflow. These interactions help explain why tank size alone cannot establish uniform deposition. The same nominal load can produce different results under different crop and environmental conditions.

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Our interpretation

A different field changes the comparison

Field tests resemble real work, but changing weather makes repeated comparisons difficult. Controlled indoor tests isolate influences more easily, while representing only part of a real field. The review identifies this tradeoff and proposes better integrated testing rather than a universal setting for every crop.

Read each performance statement with its measurement conditions. Finishing an area quickly and demonstrating adequate delivery are different outcomes. Stating the crop, weather and measurement method alongside a performance figure makes its meaning easier to assess.

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Conditions sit between capacity and results
Aircraft and application system
Crop and weather interactions
Deposition and drift
Check the outcome

Equal capacity does not imply equal outcomes. This is a conceptual comparison, not operating settings.

From the evidence

Manufacturers arrived through different routes

DJI’s 2015 Agras MG-1 announcement marked its entry into agricultural spraying. Washability and resuming work after replenishment addressed needs beyond aerial photography. The strategic change was turning flight technology into a tool for a specific recurring agricultural process.

Yamaha brought experience from unmanned spraying helicopters to its YMR-08 announcement in 2018, addressing demand including smaller plots. Its 2022 YMR-II announcement emphasized automated flight and easier handling. These different histories help explain why companies compete on practical work features as well as payload.

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Read these measures separately
MeasureWhat it describesWhat else to check
Tank capacityLiquid carriedTransport and replenishment fit
Area per hourThroughput under stated conditionsWhether preparation and refill are included
Deposition and variationDelivery to the targetCrop, weather and measurement method
Our interpretation

Scale the aircraft and connect the farm

DJI’s 2025 Agras launch included both larger-task aircraft and a compact model aimed at solo work. XAG also presents different sizes. This suggests segmentation by work scale: a larger aircraft creates options, but its size alone does not prove it fits every farmer’s transport and field needs.

XAG extends its lineup into rovers and water-and-nutrient management, and partners with CNH in Brazil. Its Vietnam launch also emphasized training and local support. These announcements show how adoption depends on fitting existing farm practices and support networks, alongside the aircraft’s physical capabilities.

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Our interpretation

Evaluate the complete working day

A working day includes transport, setup, replenishment, charging and cleaning. If one of these stages becomes the main delay, faster flight may add little to the day’s completed work. A useful comparison identifies where time is actually spent instead of extending a peak specification across the whole day.

Keeping records of the work and its outcome supports later review. The useful aircraft is the one that fits the task and enables its results to be checked. This is a framework for comparing systems, not a claim that one manufacturer or size is best for all farms.

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The idea to keep

Payload capacity, whole-job productivity and target deposition are different measures.

Try the idea yourself

If replenishment is the main delay, what does faster flight actually change?

Sources for this lesson