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The Spray Drone Applicator Exam in Drawings: Permits, GPA Math and Drift, Always in the Same Order One Topic on Every Page

The permit stack, spray drone parts, effective swath, GPA calibration, droplet sizes, drift and inversions, W-A-L-E-S mixing, the label and your records. Every topic gets its own page: the drawing first, then what you need to remember, and where to check your state's aerial category. 65 illustrated pages.

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Every topic, its own pageEach rule and each calculation drawn, with the explanation beside it
65 illustrated pages8 parts, from the rules stack to the exam review
Up-to-date sourcesFAA Parts 107 and 137, EPA label rules under FIFRA and ASABE S572
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Look Inside the Book

Every page has one big drawing and a box with the numbers and rules you need to know:

Part 107 + FAA exemption + Part 137 + state license, with the label on top
Part 107 + FAA exemption + Part 137 + state license, with the label on top
Hydraulic nozzle: orifice and pressure · Rotary atomizer: RPM and flow
Hydraulic nozzle: orifice and pressure · Rotary atomizer: RPM and flow
Pre-flight survey: power lines, towers, houses, roads, livestock, VO position and an emergency landing spot.
Pre-flight survey: power lines, towers, houses, roads, livestock, VO position and an emergency landing spot.
Swath → speed → flow → GPA: the 4-step order every calculation follows
Swath → speed → flow → GPA: the 4-step order every calculation follows
ASABE S572.3: XF purple to UC black, eight droplet classes in one row
ASABE S572.3: XF purple to UC black, eight droplet classes in one row
W-A-L-E-S: wettables, agitate, liquid flowables, emulsifiables, solutions and surfactants last.
W-A-L-E-S: wettables, agitate, liquid flowables, emulsifiables, solutions and surfactants last.
Label map: brand, EPA Reg. No., signal word, precautions, directions and the aerial section.
Label map: brand, EPA Reg. No., signal word, precautions, directions and the aerial section.
Part 107 + exemption + Part 137 + state license, with the label on top
Part 107 + exemption + Part 137 + state license, with the label on top

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These are real pages from the book. The table of contents is the full one: 8 parts and 61 topics.

The Problem Isn't You. It's How It Was Explained.

You're at the edge of the field setting up the flight plan, and the app asks for swath width. The spec sheet gives you one number. The manual tells you to measure another.

The manual covers effective swath in two dense paragraphs: overlap, deposit, pattern, lane spacing. You read it, you nod, and you still don't know what to type in.

Pre-flight survey: power lines, towers, houses, roads, livestock, VO position and an emergency landing spot.

In the book, effective swath is one page. The drone seen from behind, the spray pattern drawn on the ground, two lanes overlapping into an even deposit. You see why the effective swath is narrower than the max spray width.

Every other topic works the same way: the permit stack, GPA calibration, droplet size classes, temperature inversions, W-A-L-E-S mixing order. Each one has its own page.

So you set the lane spacing, run the GPA math in the same order and load the tank. You get it, and you do it without going back to the manual.

COMPARE FOR YOURSELF

Same Topic, Two Ways to Study It

THIS
  • The manual: line after line of text
  • Tank, pump and flow meter explained only in words
  • You walk into the exam still unsure
A typical agricultural unmanned aircraft system consists of an airframe incorporating multiple rotors and an onboard liquid application system comprising a payload tank, a pump assembly, a flow metering device and a boom or rotary atomizer array through which the spray mixture is discharged. Positioning is generally provided by a GNSS receiver supplemented by real-time kinematic correction, while forward- and downward-facing radar sensors support obstacle avoidance and terrain following. The aircraft must also broadcast identification information in accordance with applicable Remote ID requirements.
FOR THIS
  • The whole spray drone in one labeled drawing
  • The key numbers in a box
  • You see it and you get it
Hydraulic nozzle: orifice and pressure · Rotary atomizer: RPM and flow
CONTENTS

Take a Look at the 8 Parts and 61 Topics

The rules stack, the spray drone, flying the field, calibration and the GPA math, droplets, drift and weather, mixing and safety, the label, workers and records, and the exam review: 65 pages, all illustrated.

IThe Rules Stack · pp. 5-12
  1. The 4-layer permit stack
  2. Who regulates what: FAA, EPA, state
  3. Part 107: the remote pilot certificate
  4. Part 107 basic limits in the field
  5. Part 137: the agricultural operator certificate
  6. The §44807 exemption: when you need it
  7. Registration: Part 47 vs Part 48
  8. State certification: the aerial/UAV category
IIThe Spray Drone · pp. 13-19
  1. Anatomy of a spray drone
  2. Takeoff weight: empty vs loaded
  3. Hydraulic nozzles vs rotary atomizers
  4. Pump, flow meter and the spray system
  5. RTK, GNSS and flight planning
  6. Obstacle sensing and terrain follow
  7. Batteries: charge, heat and storage
IIIFlying the Field · pp. 20-25
  1. Effective swath width
  2. Pattern testing with water-sensitive cards
  3. Speed and its effect on rate
  4. Release height above the canopy
  5. Headlands, turns and field edges
  6. Obstacles, power lines and people
IVCalibration and the GPA Math · pp. 26-34
  1. The calibration method, always in the same order
  2. The GPA formula and the number 495
  3. Worked example: finding GPA
  4. Worked example: finding the flow you need
  5. Metric to US: L/ha, m/s, meters
  6. Checking the flow with a catch test
  7. Acres per tank load
  8. Product per tank: the mix math
  9. Minimum carrier volume on the label
VDroplets, Drift and Weather · pp. 35-43
  1. Droplet size classes (ASABE S572)
  2. Coverage vs drift: the trade-off
  3. Particle drift vs vapor drift
  4. Wind: the go/no-go window
  5. Temperature inversions
  6. Heat and humidity: evaporation
  7. Wind direction and sensitive areas
  8. Buffer zones on the label
  9. Endangered species: Bulletins Live! Two
VIMixing, Loading and Safety · pp. 44-51
  1. Mixing order: W-A-L-E-S
  2. The jar test
  3. Batch mixing in a nurse tank
  4. Mixing and loading site
  5. PPE: read it on the label
  6. Signal words and routes of exposure
  7. Symptoms and first aid on the label
  8. Spills: control, contain, clean up
VIILabel, Workers and Records · pp. 52-59
  1. The label is the law
  2. Is a drone 'aerial application'?
  3. Restricted use pesticides (RUP)
  4. Worker Protection Standard and REI
  5. The application exclusion zone: 100 feet
  6. Pollinators and the bee box
  7. Part 137 records: what to keep
  8. State application records
VIIIExam Review and Common Mistakes · pp. 60-65
  1. The rules stack in one look
  2. The GPA method on one card
  3. Frequent calibration mistakes
  4. Frequent drift and weather mistakes
  5. Frequent paperwork mistakes
  6. Spray day go/no-go checklist

One Page, One Topic, All Clear

Think of it this way:

It's the night before your drone applicator exam, or the morning of a job, and you need the GPA math to come out right the first time.

You open the calibration page and it's drawn out: swath, then speed, then flow, then GPA, four steps in the same order, with 495 in its own box.

ASABE S572.3: XF purple to UC black, eight droplet classes in one row

Same with the permit stack, droplet size classes, temperature inversions, W-A-L-E-S mixing and the sections of the label. Each one has its own page.

Spray Drone Applicator Illustrated is 8 parts and 61 topics, all drawn, with a final review of the rules stack, the GPA method and the most frequent mistakes.

What you see drawn, you don't have to memorize.

What's Inside Spray Drone Applicator Illustrated:

Ipp. 5-12

The Rules Stack

The 4-layer permit stack, who regulates what, Part 107 and its field limits, Part 137, the §44807 exemption, registration and your state's aerial/UAV category.

IIpp. 13-19

The Spray Drone

Spray drone anatomy, empty vs. loaded weight, hydraulic nozzles vs. rotary atomizers, pump and flow meter, RTK and flight planning, obstacle sensing and batteries.

IIIpp. 20-25

Flying the Field

Effective swath, pattern testing with water-sensitive cards, speed and rate, release height, headlands and turns, power lines and people.

IVpp. 26-34

Calibration and the GPA Math

Calibrate in the same 4 steps every time: the GPA formula with 495, worked examples, metric to US, the catch test, acres per tank, the mix math and minimum carrier volume, so the tank comes out right before you fly.

Vpp. 35-43

Droplets, Drift and Weather

ASABE droplet classes, coverage vs. drift, particle and vapor drift, wind, inversions, heat and humidity, sensitive areas, buffer zones and Bulletins Live! Two.

VIpp. 44-51

Mixing, Loading and Safety

W-A-L-E-S mixing order, the jar test, batch mixing in a nurse tank, the loading site, PPE, signal words, first aid on the label and spills.

VIIpp. 52-59

Label, Workers and Records

The label is the law, drones as aerial application, restricted use pesticides, the Worker Protection Standard and REI, the 100-foot AEZ, pollinators, and the records Part 137 and your state expect you to keep when an inspector asks.

VIIIpp. 60-65

Exam Review and Common Mistakes

The rules stack and the GPA method on one card each, frequent calibration, drift and paperwork mistakes, and a spray day go/no-go checklist.

At the end of the book: An exam review part: the rules stack and the GPA method on one card each, the most frequent mistakes and a spray day go/no-go checklist.

SHOW ME WHAT'S INSIDE

Plus: 2 Free Books

Drone Applicator Practice Questions (exam-style, with answers)

BONUS 1: «Drone Applicator Practice Questions (exam-style, with answers)»

Value on its own: US$ 17.90

Test yourself on rules, calibration math, drift and label questions, with every answer explained, so you know where you stand before exam day.

Spray Drone Field Cards: Calibration, Weather and Drift

BONUS 2: «Spray Drone Field Cards: Calibration, Weather and Drift»

Value on its own: US$ 14.90

The GPA formula, the go/no-go weather checks and the drift rules on a few printable cards you can keep in the truck.

Spray Drone Applicator Illustrated with 2 Free Books

  • Spray Drone Applicator Illustrated: 65 illustrated pagesUS$ 63
  • BONUS 1: Drone Applicator Practice Questions (exam-style, with answers)US$ 17.90
  • BONUS 2: Spray Drone Field Cards: Calibration, Weather and DriftUS$ 14.90
  • High-resolution PDF to printIncluded
Total value US$ 95.80
YOUR PRICE:
US$ 27
You save US$ 68.80
YES, I WANT SPRAY DRONE APPLICATOR ILLUSTRATED FOR US$ 27

📄 This is a digital PDF book sent to your email: nothing is printed or shipped.

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PDF by email: We email you Spray Drone Applicator Illustrated as a PDF, together with the two free books. It's a single payment: no installments, no extra charges.

Who This Book Is For

You're adding a spray drone to the farm

You're adding a spray drone to the farm

You see which permit covers what and how to calibrate the drone before your first job on your own acres.

Your state's drone category exam is coming up

Your state's drone category exam is coming up

Rules, GPA math, drift and labels laid out in order, plus practice questions to see where you stand before exam day.

You already spray for customers

You already spray for customers

Your years on a ground rig still count. The book puts the drone-specific rules, math and records on one page each, ready to print for the truck.

Everything You Get Today

US$ 95.80US$ 27
YES, I WANT SPRAY DRONE APPLICATOR ILLUSTRATED FOR US$ 27

📄 This is a digital PDF book sent to your email: nothing is printed or shipped.

30DAYS
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30-Day Guarantee

Try Spray Drone Applicator Illustrated for 30 days, bonus books included.

We refund everything if the file won't open, if the book isn't what you see here, if you were charged twice or if the email doesn't arrive. Just email us.

You pay once. No subscriptions.

Frequently Asked Questions

Is it for me if I already spray with a ground rig and I'm adding a drone?

Yes. It focuses on what changes with a drone: the FAA paperwork, swath and speed, drift from the air and the records. What you already know about pesticides still counts.

Does it work for my state's exam, and where does the content come from?

The federal part is the same in every state: FAA rules (14 CFR Parts 107, 137, 47 and 89, plus §44807 exemptions), EPA label requirements under FIFRA, the Worker Protection Standard and ASABE S572, checked against the current text. Your state adds its own aerial or drone category and its own manual, so each page notes where to confirm your state's rule. FAA rules do change, so the book also shows where to check the current version.

Is this official material?

No. It's an independent study book. It isn't issued or approved by the FAA, the EPA or any state agency, and it doesn't give you a license, a certificate or recertification credits.

Does it replace my state's manual or required training?

No. Your state's applicator manual and any required training come first. The book puts the same topics in order and in drawings so they're easier to study.

Are the practice questions the ones on the exam?

No. They're written for this book, in exam style, to test rules, calibration math, drift and labels. They aren't official questions from any exam.

When and how do I get it?

As a PDF by email: the book and the 2 bonus books, sent to the address you enter at checkout.

Do I have to pay every month?

No. It's a one-time payment, with no subscription.

Can I have it on paper?

Yes. The PDF is laid out for printing, with large type. Print it at home or at a print shop and keep it in the truck.

How do refunds work?

You have 30 days. We refund everything if the file won't open, if the book isn't what you see on this page, if you were charged twice or if the email doesn't arrive: just email us.

Before You Close This Page

No more rereading with nothing sticking.

Effective swath and the GPA math: drawn and done.

You walk into the exam knowing where everything is.

Drawings make studying faster.

The book is right below.

One-time payment: US$ 27 · Guarantee: 30 days · PDF by email

YES, I WANT SPRAY DRONE APPLICATOR ILLUSTRATED FOR US$ 27

📄 This is a digital PDF book sent to your email: nothing is printed or shipped.