
Open RePL theory guide
Remote Pilot Licence Study Guide
A searchable web edition for current Australian RPAS training, aligned to the Part 101 MOS and built as indexed lesson pages.
10
Study units mapped
33
Indexed lesson pages
33
Published source-aligned lessons
About this edition
This web guide is designed to be easier to find, easier to update and easier to study than a PDF-only theory manual. Each lesson is indexable, linked to source references and supported with diagrams where a picture makes the concept easier to understand.
This first public edition focuses on the study material, source mapping and publication notes, with source checks recorded lesson by lesson.
Dedicated to Bob Tait
Dedicated to my good mate Bob, who helped me get my start in aviation.
Ben Harris, Co-founder, National Drones
Study pathway
Rebuilt around the current MOS units
Each unit page is indexable, cross-linked and mapped back to the MOS references used for this first release.

Basic Aviation Knowledge
Map position, direction, time, units, energy, lift, drag, weight and balance, propellers, controls and remote pilot station principles.
Open unit
Airspace and Charts
Airspace classes, chart reading, AIP, ERSA, NOTAMs, approvals, restricted areas and electronic flight bags.
Open unit
Meteorology
Weather phenomena, observations, forecasts, wind, visibility, turbulence, heat, cold, rain, humidity and convection.
Open unitElectrical Systems
Electrical terms, RPA components, batteries, charging, GPS, electromagnetic radiation, EMI and signal reliability.
Open unit
Human Performance
Airmanship, decision-making, vision, stress, health, threat and error management, crew coordination and workload.
Open unit
Operations
General operations, risk assessments, logs, airworthiness, role equipment, incidents, abnormal operations, aerodromes and tethered operations.
Open unit
Air Law
Aviation legislation, information currency, guidance material, RePL conditions and certified RPA operator obligations.
Open unitAutomation
Automated flight management use, limitations, fault detection, emergency behaviour, programming precautions and degraded modes.
Open unitMultirotor
Multirotor components, weight and balance, rotor aerodynamics, hovering, controls, abnormal operations, launch, climb, turns and recovery.
Open unitAeronautical Radio
Radio responsibilities, frequencies, VHF line of sight, phraseology, readability, emergency calls and radio discipline.
Open unitNext step after study
Complete your Remote Pilot Licence training
The free study guide is a strong theory foundation. To actually be issued with a RePL, students still complete approved training, practical flying and assessment with a certified provider.
Source baseline
Regulatory baseline
20 source checks recorded for this edition
Current MOS baseline
Part 101 (Unmanned Aircraft and Rockets) Manual of Standards 2019, F2024C00404 C10Checked 2026-05-18
CASA guidance
AC 101-01 v6.1 - Remotely piloted aircraft systems - licensing and operationsChecked 2026-05-18
Aeronautical information
Airservices Australia Aeronautical Information Package, including ERSA and chart productsChecked 2026-05-18
CASA RPA approvals
Flight approvals and permissions, including controlled and restricted airspace guidanceChecked 2026-05-18
CASA operating categories
Drone weight categories and requirements, including excluded category RPAChecked 2026-05-19
CASA AROC guidance
Radio operators and Aeronautical Radio Operator Certificate requirementsChecked 2026-05-19
CASA model aircraft guidance
AC 101-03 v2.0 - Flying a model aircraft or drone for recreation or educationChecked 2026-05-19
Bureau aviation weather
Bureau of Meteorology aviation forecasts, observations and knowledge centreChecked 2026-05-20
Bureau thunderstorm guidance
Bureau of Meteorology severe weather knowledge centre: thunderstormsChecked 2026-05-20
Airservices flight briefing
Airservices Australia flight briefing and NAIPS pilot toolsChecked 2026-05-20
CASA human factors
CASA pilot safety hub, including human factors and safety behavioursChecked 2026-05-20
ATSB human factors
Australian Transport Safety Bureau aviation human factors safety materialChecked 2026-05-20
ATSB occurrence reporting
ATSB aviation accident, serious incident and incident notification guidanceChecked 2026-05-21
Rewrite source
Original RePL Study Guide V1.2 source material
Checked 2026-05-18
Coverage matrix
Lesson source and MOS mapping
| Unit | Lesson | MOS refs | Source pages | Status |
|---|---|---|---|---|
| RBAK | Map Position, Latitude/Longitude and Runway Orientation | 1, 1-3 | RePL Study Guide pp. 11-29; Part 101 MOS C10 pp. 92-95. | Current source aligned |
| RBAK | Direction, Heading and Wind | 1 | RePL Study Guide pp. 11-35; Part 101 MOS C10 pp. 92-93. | Current source aligned |
| RBAK | Time, UTC and Date-Time Groups | 2 | RePL Study Guide pp. 32-34; Part 101 MOS C10 p. 92. | Current source aligned |
| RBAK | Height, Altitude, Elevation and Aviation Units | 3 | RePL Study Guide pp. 29-35; Part 101 MOS C10 p. 92. | Current source aligned |
| RBAK | Aircraft Energy, Inertia and Speed | 4 | RePL Study Guide pp. 199-200; Part 101 MOS C10 p. 92. | Current source aligned |
| RBAK | Aerodynamics, Weight and Balance | 5 | RePL Study Guide pp. 199-206; Part 101 MOS C10 pp. 92-93. | Current source aligned |
| RBAK | Lift, Drag and Angle of Attack | 6 | RePL Study Guide pp. 200-213; Part 101 MOS C10 p. 93. | Current source aligned |
| RBAK | Propellers, Rotors, Thrust and Torque | 7 | RePL Study Guide pp. 166-172; Part 101 MOS C10 p. 93. | Current source aligned |
| RBAK | Flight Controls, Axes and Climb | 8 | RePL Study Guide pp. 188-198 and 220-224; Part 101 MOS C10 p. 93. | Current source aligned |
| RBAK | Remote Pilot Station and Control Link | 9 | RePL Study Guide pp. 175-183; Part 101 MOS C10 p. 93. | Current source aligned |
| RBAK | Performance, Wind Shear, Turns and Ground Effect | 1-8, 6-10 | RePL Study Guide pp. 215-236; Part 101 MOS C10 pp. 92-95; CASA AC 101-01 v6.1 and AC 101-03 v2.0 checked 2026-05-19. | Current source aligned |
| RACP | Airspace, Charts and Approvals | 1, 2-3, 4-5 | RePL Study Guide pp. 40-99; Part 101 MOS C10 pp. 94-95. | Current source aligned |
| RACP | Airspace Classes, Controlled Aerodromes and CTAF | 1, 2, Guidance | RePL Study Guide pp. 66-82 and 92-98; Part 101 MOS C10 pp. 94-95; CASA flight approvals and permissions guidance checked 2026-05-18. | Current source aligned |
| RACP | ERSA, NOTAMs, PRD Areas and Publication Checks | 2, 3, 4-5 | RePL Study Guide pp. 83-98; Part 101 MOS C10 pp. 94-95; Airservices AIP/ERSA/NOTAM sources checked 2026-05-18. | Current source aligned |
| RACP | Circuit Patterns, Aerodrome Traffic and CTAF Awareness | 1, 2, 3, Guidance | RePL Study Guide pp. 92-98 and 278-313; Part 101 MOS C10 Schedule 4 Unit 2. | Current source aligned |
| RBMO | Weather Risk for Drone Operations | 1, 2-3 | RePL Study Guide pp. 107-140; Part 101 MOS C10 p. 96. | Current source aligned |
| RBMO | Forecasts, Observations and Weather Hazard Decisions | 1, 2, 3 | RePL Study Guide pp. 107-140; Part 101 MOS C10 Schedule 4 Unit 3. | Current source aligned |
| REES | Batteries, Electronics and Signal Reliability | 1, 2-3, 4-6, 7-9 | RePL Study Guide pp. 142-183; Part 101 MOS C10 pp. 97-99. | Current source aligned |
| REES | Battery Management, Charging and Power Margins | 4-6, 1-4 | RePL Study Guide pp. 161-165; Part 101 MOS C10 pp. 97-99; CASA Pack Right lithium battery guidance and AC 101-03 v2.0 Appendix C checked 2026-05-19. | Current source aligned |
| RHPF | Human Performance and Threat and Error Management | 1, 2, 3, 4, 5, 6 | RePL Study Guide pp. 241-275; Part 101 MOS C10 pp. 100-102. | Current source aligned |
| RHPF | Decision-Making, Risk Matrix and Operational Worksheets | 1, 4, 5, 6, 2 | RePL Study Guide pp. 241-275; Part 101 MOS C10 Schedule 4 Unit 5. | Current source aligned |
| RKOP | Operational Risk, Logs and Emergencies | 1, 2-3, 4-5, 6-10 | RePL Study Guide pp. 44-65 and 267-270; Part 101 MOS C10 pp. 103-105. | Current source aligned |
| RKOP | Incident Reporting, Fitness and Post-Event Actions | 1, 2-3, 5, 6, 2,4 | RePL Study Guide pp. 99-102 and 267-270; Part 101 MOS C10 Schedule 4 Unit 6. | Current source aligned |
| RORA | Rules, Licences and Current Sources | 1, 2 | RePL Study Guide pp. 40-55; Part 101 MOS C10 p. 106. | Current source aligned |
| RORA | RePL, ReOC and Operating Categories | 1, 2 | RePL Study Guide pp. 44-55; Part 101 MOS C10 p. 106; CASA RePL/ReOC and drone weight category guidance checked 2026-05-19. | Current source aligned |
| RORA | Operating Limits, VLOS, Populous Areas and Approvals | 1, 1 | RePL Study Guide pp. 55-65 and 99-102; Part 101 MOS C10 p. 106; CASA drone safety rules and flight approvals guidance checked 2026-05-19. | Current source aligned |
| RAFM | Automation Limits and Failure Modes | 1 | RePL Study Guide pp. 151-183; Part 101 MOS C10 p. 107. | Current source aligned |
| RAFM | GNSS, Compass and Sensor Reliability | 1, 7-9 | RePL Study Guide pp. 151-160; Part 101 MOS C10 pp. 97-99 and 107; CASA AC 101-01 v6.1 and AC 101-03 v2.0 checked 2026-05-19. | Current source aligned |
| RBKM | Multirotor Components and Vortex Ring Awareness | 1-5, 6-10 | RePL Study Guide pp. 142-183; Part 101 MOS C10 pp. 111-113. | Current source aligned |
| RBKM | Propulsion, Telemetry and Failsafe Checks | 1-6, 2-3, 7-9 | RePL Study Guide pp. 166-183; Part 101 MOS C10 pp. 111-113; CASA AC 101-03 v2.0 Appendix C checked 2026-05-19. | Current source aligned |
| AROC | Radio Calls, Readability and Emergencies | Guidance, 1(c) | RePL Study Guide pp. 278-316; CASA AC 101-01 v6.1. | Current source aligned |
| AROC | Radio Fundamentals, Responsibilities and Phraseology | Guidance, 1(c) | RePL Study Guide pp. 278-306; CASA radio operators guidance checked 2026-05-19; CASA AC 101-01 v6.1. | Current source aligned |
| AROC | Sample Calls, Emergencies and Lost Communications | Guidance, 5-6 | RePL Study Guide pp. 292-316; CASA radio operators guidance checked 2026-05-19; CASA AC 101-01 v6.1. | Current source aligned |