UNIT 03 · NDEGE-CLASS · HEAVY-LIFT AGRICULTURAL SPRAY DRONE

NDEGE-12

from Swahili ndege, the bird.

A single heavy-lift hexacopter built for targeted pesticide and fertilizer application across smallholder African farms.

PILOT PRODUCTION
NDEGE-12 heavy-lift agricultural spray drone in flight

AT A GLANCE

AIRCRAFT TYPE

Heavy-lift hexacopter

PAYLOAD

10 L spray tank

COVERAGE

Up to 5 ha / flight

FLIGHT TIME

22 min per battery

SPRAY PATTERN

4-nozzle fan · 2.5 m swath

NAVIGATION

GPS-RTK autonomous

WEATHER

IP54 · 8 m/s wind

GROUND STATION

Solar auto-dispatch

01 / ANATOMY OF THE MACHINE

Every part accounted for.

NDEGE-12 annotated anatomy
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03
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05
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07
08
01

Carbon-Fibre Frame

Six radial arms, lightweight and high-stiffness.

02

Heavy-Lift Rotors

Six brushless DC motors with drift-tuned propellers.

03

Central Avionics Body

GPS, IMU, flight controller, telemetry radio.

04

10L Spray Tank

Modular reservoir for agrochemicals, water or biopesticides.

05

Fan-Pattern Nozzles

Four precision micro-spray nozzles with controlled droplet size.

06

Downward Vision & LiDAR

Terrain following at 2–3 m altitude.

07

Quick-Swap Battery

Hot-swap LiPo for continuous operation cycles.

08

NDEGE-12 Wordmark

Visible from front and side angles.

02 / HOW IT WORKS

Component by component.

01

The Carbon-Fibre Frame

Six radial arms machined from unidirectional carbon. Optimised for stiffness-to-weight under heavy payload. Survives hard landings on uneven African farmland without delamination.

SPECS

  • MaterialUD carbon fibre
  • Arms6
  • Dry weight8.2 kg
  • FoldedYes
02

The Motor + Propeller System

Six brushless DC motors driving 24-inch propellers tuned for low spray drift. Each motor is independently fused, so a single rotor loss does not down the aircraft.

SPECS

  • Motors6 brushless DC
  • Propellers24 in, drift-tuned
  • RedundancySingle-rotor tolerant
  • ESCsIndividually fused
03

The Spray System

A 10L modular tank feeds four fan-pattern micro-nozzles. Droplet size is software-selectable to match the chemical and the crop, minimising drift and protecting non-target plants.

SPECS

  • Tank10 L modular
  • Nozzles4 fan pattern
  • Swath2.5 m
  • DropletSoftware-selectable
04

The Vision + LiDAR Navigation

Downward-facing camera and LiDAR enable terrain following at 2–3m altitude across uneven smallholder plots. Drone holds altitude over terraces, contour lines and gulleys without operator input.

SPECS

  • Altitude2 – 3 m AGL
  • Terrain followYes
  • SensorsCamera + LiDAR
  • Update rate20 Hz
05

The GPS-RTK Flight Planning

Pre-computed flight paths uploaded from the cloud match the registered field boundary. RTK positioning keeps swath overlap tight, eliminating skip and double-spray.

SPECS

  • Accuracy±2 cm RTK
  • Boundary sourceCloud catalogue
  • OverlapAuto-optimised
  • Skip / doubleEliminated
06

The Battery System

Hot-swap LiPo pack delivers 22 minutes of loaded flight. Ground station holds three packs on rotating charge so the drone returns to a fresh pack in under 90 seconds.

SPECS

  • ChemistryLiPo
  • Flight time22 min loaded
  • Swap<90 s
  • Packs / station3 rotating
07

The Ground Station

Solar-charged, weatherproof and auto-dispatching. Reads scheduled missions from WhatsApp, prepares the drone, monitors flight and re-tasks on weather window.

SPECS

  • PowerSolar + grid optional
  • Footprint1.2 × 1.2 m
  • Comms4G + WhatsApp
  • Auto-dispatchWeather-aware
08

The Weather and IP Rating

IP54 sealing protects avionics and motors against rain, dust and chemical mist. Certified for sustained 8 m/s winds with usable accuracy at the swath level.

SPECS

  • IngressIP54
  • Wind8 m/s sustained
  • Operating temp0 – 45 °C
  • Mist toleranceYes
09

The Repair-First Electronics

Every avionics module is socketed and field-replaceable. Spare flight controllers, GPS modules and ESCs ship in a Pelican-style case alongside the drone.

SPECS

  • ModulesSocketed
  • Spare kitIncluded
  • DiagnosticUSB-C
  • FirmwareOTA + manual
10

The Telemetry & WhatsApp Control

Mission status, battery state, wind reading and coverage map all stream back via WhatsApp. The farmer never needs to touch a desktop or a controller.

SPECS

  • TransportWhatsApp + SMS
  • Languages5
  • Live mapYes
  • AlertsWeather + battery

03 / A DAY IN THE FIELD

From command to report.

STEP 01

Schedule

Farmer schedules a spray mission via WhatsApp.

STEP 02

Prepare

Ground station auto-charges and prepares the drone.

STEP 03

Upload

Drone uploads field boundary and flight path from cloud.

STEP 04

Launch

Drone takes off, follows terrain at 2–3 m altitude.

STEP 05

Spray

Fan nozzles deliver precision micro-spray across the target area.

STEP 06

Return

Drone returns to station autonomously for battery swap or shutdown.

STEP 07

Report

WhatsApp report: litres dispensed, hectares covered, map of coverage.

04 / SPARE PARTS CATALOG

Designed to be repaired.

Designed to be repaired with hand tools and locally available parts. Every machine is engineered for repairability.

PropellerND12-SP-001

Propeller

24-inch drift-tuned propeller.

USERIN STOCK
MotorND12-SP-002

Motor

Single brushless DC motor.

USER7 DAYS
ESCND12-SP-003

ESC

Electronic speed controller, fused.

USER7 DAYS
Flight controllerND12-SP-004

Flight controller

Replacement FC board.

WORKSHOP14 DAYS
GPS moduleND12-SP-005

GPS module

RTK-capable GPS unit.

USER14 DAYS
Vision cameraND12-SP-006

Vision camera

Downward navigation camera.

USER14 DAYS
LiDAR moduleND12-SP-007

LiDAR module

Terrain-following LiDAR.

WORKSHOP21 DAYS
Spray nozzleND12-SP-008

Spray nozzle

Fan-pattern micro nozzle.

USERIN STOCK
Spray tankND12-SP-009

Spray tank

10L modular reservoir.

USERIN STOCK
Battery packND12-SP-010

Battery pack

Hot-swap LiPo pack.

USERIN STOCK
Charger unitND12-SP-011

Charger unit

Ground-station fast charger.

WORKSHOP21 DAYS
Fastener kitND12-SP-012

Fastener kit

Standard metric set.

USERIN STOCK

05 / TECHNICAL SPECIFICATIONS

The full sheet.

  • TypeHeavy-lift hexacopter
  • FrameUnidirectional carbon fibre
  • Dry weight8.2 kg
  • FoldedYes, transport case included
  • Motors6 × brushless DC
  • Propellers24 in, drift-tuned
  • RedundancySingle-rotor loss tolerant
  • Tank10 L modular
  • Nozzles4 × fan-pattern
  • Swath2.5 m
  • Droplet sizeSoftware-selectable
  • Coverage / flightUp to 5 ha
  • PositioningGPS-RTK, ±2 cm
  • Terrain followCamera + LiDAR, 2–3 m AGL
  • Update rate20 Hz
  • BatteryHot-swap LiPo
  • Flight time22 min loaded
  • Swap time<90 s
  • Ground stationSolar-charged, 3-pack rotation
  • InterfaceWhatsApp + SMS
  • Languages5
  • Comms4G + telemetry radio
  • IngressIP54
  • Wind tolerance8 m/s sustained
  • Operating temp0 – 45 °C
  • GeofencePlot boundary
  • RTLOn signal loss, low battery, high wind
  • LoggingPer-mission, exportable

06 / ENGINEERING PRINCIPLES

What guided this machine.

  1. 01One rotor lost is not the mission lost.
  2. 02Spray is only useful where it lands. Drift is failure.
  3. 03The pilot is the farmer, the controller is WhatsApp.
  4. 04Every avionics module is socketed and replaceable.
  5. 05Weather decides launch. Software decides everything else.

07 / FAQ

Questions we get asked.