Air Exercise 16F — Rejected (Aborted) Takeoffs & Takeoff Decision Making
Lesson ID: LS-PT-AE-016F-001
Stage: Incubation
Training Level: Judgment / Should be taught Pre Solo
Prerequisites
● Air Exercise 16A — Takeoff Fundamentals
● Air Exercise 16B — Normal Takeoffs
● Air Exercise 16C — Crosswind Takeoffs
● Air Exercise 16D — Short-Field Takeoffs
● Air Exercise 16E — Soft-Field Takeoffs
Next Lesson
Air Exercise xx
Estimated Study Time
50–70 minutes
Estimated Flight Time
0.8–1.0 hour
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Learning Objective
After completing this lesson, the student will be able to recognize abnormal conditions during the takeoff roll, make timely and appropriate continue-or-reject decisions, safely perform a rejected takeoff when required, and understand that every takeoff is a continuous evaluation of aircraft performance, runway remaining, and operational risk.
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Knowledge Objectives
The student will understand:
● What defines a rejected (aborted) takeoff.
● Why every takeoff begins with a decision to continue or reject.
● The shrinking decision window during the takeoff roll.
● Common reasons to reject a takeoff.
● Human factors affecting rejection decisions.
● Generic rejected takeoff sequence.
● Directional control during braking.
● Runway remaining awareness.
● Aircraft-specific POH procedures.
● Post-abort actions.
● Common errors.
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Flight Objectives
The student will demonstrate the ability to:
● Continuously evaluate aircraft performance during the takeoff roll.
● Recognize abnormal situations early.
● Make prompt continue-or-reject decisions.
● Execute a smooth rejected takeoff.
● Maintain directional control.
● Bring the aircraft safely to a stop.
● Apply aircraft-specific procedures after stopping.
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Big Idea
A successful takeoff sometimes ends without leaving the ground.
Professional pilots do not commit to flying when the throttle is advanced.
They commit only after the aircraft continuously proves that everything is operating normally.
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Introduction
Most students think a takeoff begins when the throttle is opened.
Professional pilots think differently.
Every takeoff begins as an evaluation.
As the aircraft accelerates, it must continuously prove:
● the engine is producing expected power,
● acceleration is normal,
● directional control is maintained,
● flight controls feel correct,
● runway remaining is adequate,
● no new hazards have appeared.
Only then does the pilot continue.
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Every Takeoff Begins as a Decision
Before every departure, adopt the mindset:
“The aircraft must earn the right to fly today.”
Do not assume the takeoff will continue.
Allow the aircraft to prove that:
● power is normal,
● acceleration is normal,
● handling is normal,
● conditions remain acceptable.
If not—
Reject the takeoff.
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The Decision Window
One of the most important concepts in this lesson is the Decision Window.
At the start of the runway:
You have many options.
As speed increases:
Your available options decrease.
Near rotation:
Your opportunity to reject safely becomes much smaller.
The safest rejected takeoffs are usually the earliest ones.
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The Continue Gates
Think of every takeoff as passing through three “Continue Gates.”
Gate 1 — Power Applied
Ask:
● Is full power developing?
● Are engine instruments normal?
● Does the aircraft begin accelerating normally?
● Is directional control maintained?
If not—
Reject.
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Gate 2 — Early Takeoff Roll
Ask:
● Is acceleration still normal?
● Does the aircraft feel normal?
● Is runway remaining as expected?
● Has anything changed?
If not—
Reject.
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Gate 3 — Approaching Rotation
Ask:
● Is the correct speed being reached?
● Is sufficient runway remaining?
● Is the aircraft ready to fly?
● Have any new hazards appeared?
If not—
Reject.
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Common Reasons to Reject
Aircraft Performance
● Engine failure
● Partial power loss
● Rough engine
● Low RPM
● Abnormal engine indications
● Excessive vibration
● Fuel or oil warnings
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Aircraft Control
● Flight controls restricted
● Brake malfunction
● Tire failure
● Nosewheel shimmy
● Poor directional control
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Environmental Hazards
● Wildlife
● Birds
● Vehicles
● People
● Debris
● Unexpected crosswind gust
● Standing water
● Ice
● Snow drift
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Cockpit Events
● Door opens
● Seat slides
● Loose objects
● Passenger interference
● Incorrect flap setting
● Incorrect trim
● Checklist interruption
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Operational
● Takeoff clearance cancelled
● Runway conflict
● Wrong runway identified
● Traffic conflict
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Human Factors
Rejected takeoffs are often delayed because of normal human psychology.
Recognize these traps:
Plan Continuation Bias
“I’ve already started.”
Startle Effect
“I wasn’t expecting this.”
Confirmation Bias
“The engine probably sounds okay.”
Get-There-Itis
“I’ll deal with it after takeoff.”
Professional pilots recognize these traps before they occur.
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Generic Rejected Takeoff Flow
Aircraft procedures differ.
Always follow the POH.
As a general framework:
Recognize
Something is abnormal.
↓
Decide
Continue?
Reject?
↓
Act
● Smoothly reduce power.
● Maintain directional control.
● Apply appropriate braking.
● Stop safely.
● Clear the runway if practical.
● Complete aircraft-specific procedures.
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Directional Control
Directional control remains the highest priority.
During heavy braking:
● maintain runway centreline,
● avoid over-controlling,
● use rudder while effective,
● transition to nosewheel steering as speed decreases.
Stopping on the runway is preferable to departing the runway.
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Aircraft-Specific Procedures
Every aircraft has different recommendations.
Consult the POH for:
● rejected takeoff procedures,
● flap configuration,
● braking recommendations,
● electrical actions,
● engine shutdown procedures,
● emergency checklists.
The POH always takes precedence.
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Standardized Rejected Takeoff Briefing
One of the best ways to prepare for every departure is a short rejected takeoff briefing.
A simple template is:
1. – Runway length is xxxx ft, (This determins the driefing distances)
2. – A perfomance criteria (We should have xx kts by this landmark/ distance from a landmark/ a runway marker ect.)
“If anything abnormal occurs before this point we will abort.
3. – A second rejection point if the runway is shorter than we can stop at the expected rotation point
from xx kts to rotation speed xx kts we will only abort for engine failure, loss of control, or major abnormality becuse we might over run the end of the runway— for examplew: “only loss of power, abnormal engine indications, poor acceleration, loss of directional control, or a runway hazard—we reject the takeoff (reduce power, maintain directional control, brake as required, and stop straight ahead). After stopping, follow the aircraft POH and emergency procedures.
4. – Rotating at xx kts if we get an emergency we will … – (this depends on POH, single engine, twin engine, circuit altitude, ect. Come up with a plan…
5. -Departure procedure is (brief your clearance or expected departure procedure, turnout direction, expected altitude, frequancy conciderations, filled track ect.)
This is a training template only.
Pilots should adapt their briefing to the aircraft, runway, any weather cosiderations, and company SOPs.
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The Rabbit
We were accelerating through 55 knots.
Everything looks normal.
Suddenly, a rabbit runs onto the runway.
I hesitated.
“It’s only a rabbit.”
For one second I thaught do I continue accelerating?
While deciding what to do.
Then the rabbit suddenly changes direction.
Now we were travelling much faster.
Much more runway has disappeared.
Our opportunity to reject safely has become much smaller.
The rejected takeoff wasn’t difficult because of the braking.
It became difficult because of the delay.
Every second spent deciding removes another safe option.
Professional pilots need to make decisions early and a good briefing helps this and coordinates the crew expectations.
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Common Errors
Planning Errors
● Beginning the takeoff without considering rejection criteria.
● Failing to identify hazards before departure.
● Not reviewing aircraft-specific procedures.
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Technique Errors
● Reducing power slowly.
● Poor directional control.
● Over-braking or releasing brakes unnecessarily.
● Looking inside the cockpit instead of outside.
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Judgment Errors
● Continuing despite abnormal acceleration.
● Continuing after recognizing engine problems.
● Delaying the reject decision.
● Becoming fixated on diagnosing the problem instead of controlling the aircraft.
● Assuming the aircraft will “fix itself” after lift-off.
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Deliberately Excluded
● Engine failure after takeoff.
● Forced landings.
● Precise aircraft-specific emergency checklists.
● Multi-engine accelerate-stop concepts (V1).
● Commercial SOP rejected takeoff procedures.
These topics are addressed in later lessons.
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Key Takeaways
● Every takeoff begins as a decision—not a commitment.
● The aircraft must continuously prove it is safe to continue.
● The decision window becomes smaller as speed increases.
● Early recognition and prompt decisions produce the safest rejected takeoffs.
● Directional control always has priority over aggressive braking.
● Aircraft-specific rejected takeoff procedures are found in the POH.
● Good judgment prevents emergencies before the aircraft leaves the ground.
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Common Instructor Debrief Questions
● What abnormal event would cause you to reject today’s takeoff?
● At what point did your available options begin to decrease?
● Which human factor is most likely to delay a reject decision?
● Why is maintaining directional control more important than maximum braking?
● How would your decision change on a shorter runway or a contaminated surface?
● What items would you include in your own rejected takeoff briefing?
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Common Errors
Planning Errors
● Beginning the takeoff without considering when you would reject it.
● Failing to conduct a rejected takeoff briefing.
● Not identifying runway hazards for this particular airport or weather before departure.
● Ignoring runway length, surface condition, or weather changes.
● Not reviewing the aircraft’s rejected takeoff procedures in the POH.
● Assuming the takeoff will continue regardless of changing conditions.
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Technique Errors
● Hesitating after recognizing an abnormal condition.
● Continuing to accelerate while deciding whether to reject.
● Reducing power too slowly.
● Applying excessive or uneven braking, causing loss of directional control.
● Looking inside the cockpit instead of maintaining outside visual references.
● Releasing directional control while braking.
● Attempting to diagnose the problem before stopping the aircraft.
● Failing to maintain the runway centreline throughout the reject.
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Judgment Errors
● Continuing despite abnormal engine indications.
● Continuing despite poor acceleration.
● Continuing despite loss of directional control.
● Continuing after a significant wildlife, vehicle, or runway incursion.
● Assuming the problem can be solved after takeoff.
● Allowing plan continuation bias to override good judgment.
● Waiting too long until insufficient runway remains.
● Rejecting for a minor issue after the aircraft has already safely become airborne, when continuing the takeoff may be the safer option (always dependent on the aircraft POH, runway remaining, SOP, and situation).
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Instructor Notes
Emphasize that most rejected takeoff accidents are not caused by poor braking—they are caused by delayed decisions.
The safest rejected takeoffs usually occur because the pilot:
● recognized the problem early,
● made the decision immediately,
● maintained directional control,
● stopped the aircraft while sufficient runway remained.
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ALBATROSS KNOWLEDGE GRAPH METADATA
Version 4.1
ALBATROSS KNOWLEDGE GRAPH METADATA
Version 4.1
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IDENTITY
Content ID:
LS-PT-AE-016F-001
Content Type Code:
LS
Domain Code:
PT
Topic Code:
AE16F
Sequence Number:
001
Knowledge Node ID:
KG-PT-AE16F-REJECTED-TAKEOFF
Knowledge Family:
Rejected (Aborted) Takeoffs & Takeoff Decision Making
Entity Type:
Flight Training Lesson
Lesson Title / Content Title:
Air Exercise 16F — Rejected (Aborted) Takeoffs & Takeoff Decision Making
Short Title:
Rejected Takeoffs
Canonical Topic:
Rejected (Aborted) Takeoff Decision Making
Alternative Topic Names:
Aborted Takeoff, Rejected Takeoff, Rejecting a Takeoff, Abandoning the Takeoff Roll, Takeoff Decision Making, Stop or Go Decision
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CLASSIFICATION
Domain:
Pilot Training
Subdomain:
Takeoffs and Departures
Category:
Air Exercises
Audience:
Student Pilot, Flight Instructor
Jurisdiction:
Canada / Transport Canada
Training System:
Transport Canada PPL Flight Training
Certification Context:
Private Pilot Licence — Aeroplane
Stage:
Incubation
Phase:
Early PTR
Training Level:
Judgment
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CORE KNOWLEDGE
Primary Concept:
Making timely and appropriate continue-or-reject decisions during the takeoff roll by continuously evaluating aircraft performance, runway remaining, and changing operational conditions.
Plain-Language Definition:
A rejected takeoff is a decision to safely stop the aircraft before becoming airborne because continuing the takeoff is no longer the safest option.
Technical Definition:
A rejected (aborted) takeoff is the intentional discontinuation of the takeoff roll before liftoff due to abnormal aircraft performance, changing environmental conditions, operational hazards, or other safety concerns, followed by aircraft-specific stopping and emergency procedures.
Key Principles:
● Every takeoff begins as an evaluation—not a commitment.
● The aircraft must continuously prove it is safe to continue.
● Earlier decisions generally provide more options.
● Directional control has priority during the reject.
● Follow the aircraft POH for aircraft-specific procedures.
● Good judgment prevents emergencies.
Underlying Theory:
● Aeronautical decision making (ADM)
● Threat and Error Management (TEM)
● Human factors
● Risk management
● Aircraft performance
● Braking performance
● Runway safety
Why It Matters:
Many takeoff accidents occur because pilots continue a takeoff after recognizing an abnormal condition or delay making the decision to reject. Timely decisions often prevent accidents before the aircraft leaves the ground.
Content Role:
Develops judgment and decision-making by teaching when and how to discontinue a takeoff safely before liftoff.
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LEARNING FRAMEWORK
Learning Outcome:
By the end of this lesson, the learner should be able to recognize abnormal conditions during the takeoff roll, continuously evaluate whether the takeoff should continue, perform a safe rejected takeoff when appropriate, and understand the human factors that influence decision making.
Core Competencies:
● Aeronautical decision making
● Risk assessment
● Situational awareness
● Aircraft handling
● Directional control
● Threat and Error Management
● Judgment under pressure
Performance Standard:
The student should demonstrate the ability to:
● Recognize abnormal situations promptly.
● Make timely continue-or-reject decisions.
● Maintain runway directional control.
● Reduce power smoothly.
● Apply appropriate braking.
● Stop the aircraft safely.
● Complete aircraft-specific procedures after stopping.
Prerequisites:
● LS-PT-AE-016A-001 — Takeoff Fundamentals
● LS-PT-AE-016B-001 — Normal Takeoffs
● LS-PT-AE-016C-001 — Crosswind Takeoffs
● LS-PT-AE-016D-001 — Short-Field Takeoffs
● LS-PT-AE-016E-001 — Soft-Field Takeoffs
Required Prior Knowledge:
● Normal takeoff sequence
● Aircraft performance
● Runway awareness
● Basic braking techniques
● Directional control
● Aircraft systems awareness
Common Student Errors:
Planning Errors
● Beginning the takeoff without considering rejection criteria.
● Failing to conduct a rejected takeoff briefing.
● Not identifying runway hazards before departure.
● Ignoring runway condition or available distance.
● Not reviewing POH procedures.
Technique Errors
● Hesitating after recognizing a problem.
● Continuing to accelerate while deciding.
● Reducing power too slowly.
● Losing directional control during braking.
● Becoming fixated on cockpit instruments.
● Diagnosing the problem before stopping.
Judgment Errors
● Continuing despite abnormal engine performance.
● Continuing despite poor acceleration.
● Continuing despite significant runway hazards.
● Delaying the reject decision.
● Assuming the problem can be solved after takeoff.
● Allowing plan continuation bias to override sound judgment.
Common Misconceptions:
● Rejecting a takeoff is a sign of poor piloting.
● Once the throttle is opened, the takeoff should continue.
● Minor abnormalities can always be managed after liftoff.
● Maximum braking is more important than directional control.
● Every abnormal event requires the same response.
Frequently Asked Questions:
● When should I reject a takeoff?
● What if the engine sounds rough?
● Should I reject for an open door?
● What if wildlife appears on the runway?
● Is directional control more important than braking?
● How do I brief a rejected takeoff?
Instructor Emphasis:
Teach that every takeoff is a continuous evaluation. Emphasize early recognition, prompt decisions, maintaining directional control, and resisting the urge to “press on” when conditions are no longer normal.
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OPERATIONAL CONTEXT
Operational Link:
Rejected takeoffs are a fundamental risk-management skill used in every phase of aviation, from primary training to airline operations.
Real-World Applications:
● Flight training
● Private operations
● Commercial operations
● Charter operations
● Airline operations
● Bush flying
● Emergency decision making
Related Aircraft Systems:
● Engine
● Brakes
● Flight controls
● Nosewheel steering
● Tires
● Landing gear
● Engine instruments
Related Human Factors:
● Plan continuation bias
● Startle effect
● Confirmation bias
● Get-there-itis
● Workload management
● Situational awareness
● Decision making
Related Regulations:
● Canadian Aviation Regulations (CARs)
● Transport Canada AIM
● Aircraft POH/AFM
● Company SOPs (where applicable)
Related Flight Test Standards:
Transport Canada Flight Test Guide — Decision making, aircraft handling, and safe rejected takeoff procedures where applicable.
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KNOWLEDGE RELATIONSHIPS
Previous Lesson:
LS-PT-AE-016E-001 — Soft-Field Takeoffs
Current Lesson:
LS-PT-AE-016F-001 — Rejected (Aborted) Takeoffs & Takeoff Decision Making
Next Lesson:
Air Exercise 17 — The Circuit
Parent Concepts:
● Takeoffs
● Aeronautical Decision Making
● Aircraft Performance
● Risk Management
● Flight Safety
Child Concepts:
● Continue-or-Reject Decision
● Decision Window
● Continue Gates
● Rejected Takeoff Briefing
● Directional Control
● Runway Remaining Awareness
● Human Factors
● Aircraft-Specific Procedures
Sibling Concepts:
● Normal Takeoffs
● Crosswind Takeoffs
● Short-Field Takeoffs
● Soft-Field Takeoffs
Supports:
● Circuit operations
● Emergency procedures
● Commercial operations
● CRM
● TEM
● Operational decision making
Supported By:
● Air Exercise 16A
● Air Exercise 16B
● Air Exercise 16C
● Air Exercise 16D
● Air Exercise 16E
Related Lessons:
● AE07
● AE16A
● AE16B
● AE16C
● AE16D
● AE16E
● AE17
● Emergency Procedures
● Forced Landings
Related Weather Topics:
● Crosswinds
● Wind shear
● Standing water
● Snow
● Ice
● Contaminated runways
Related Navigation Topics:
● Runway awareness
● Airport operations
● Surface movement
Related Human Factors:
● Threat and Error Management
● Aeronautical Decision Making
● Plan Continuation Bias
● Startle Effect
● Confirmation Bias
● Situational Awareness
Related Emergencies:
● Engine failure before takeoff
● Partial power loss
● Brake malfunction
● Tire failure
● Wildlife avoidance
● Runway incursions
● Engine failure after takeoff (relationship only)
Related Articles:
ART-PT-ADM-001
Related Diagrams:
DIA-PT-AE16F-001
Related Illustrations:
ILL-PT-AE16F-001
Related Infographics:
INF-PT-AE16F-001
Related Videos:
VID-PT-AE16F-001
Related Animations:
ANI-PT-AE16F-001
Related Worksheets:
WS-PT-AE16F-001
Related Checklists:
CL-PT-AE16F-001
Related Quizzes:
QZ-PT-AE16F-001
Related Downloads:
DL-PT-AE16F-001
Related Glossary Terms:
● Rejected Takeoff
● Aborted Takeoff
● Decision Window
● Threat and Error Management
● Aeronautical Decision Making
● Plan Continuation Bias
● Startle Effect
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CAUSE & EFFECT
Cause-and-Effect Relationships:
● If engine performance is abnormal, the takeoff may need to be rejected.
● If acceleration is slower than expected, available runway decreases while risk increases.
● If the reject decision is delayed, stopping distance required increases and remaining options decrease.
● If directional control is lost during braking, runway excursion risk increases.
● If abnormal conditions are recognized early, more safe options remain.
● If pilots allow plan continuation bias to influence their judgment, they are more likely to continue an unsafe takeoff.
● If a proper rejected takeoff briefing is completed before departure, recognition and response times are typically improved.
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DISCOVERY
Discovery Keywords:
Rejected takeoff, aborted takeoff, continue or reject, takeoff decision making, engine failure before rotation, takeoff briefing, runway remaining, decision window, continue gates, ADM, TEM
Alternative Search Phrases:
When should I reject a takeoff?
How to perform an aborted takeoff
Engine rough during takeoff
Takeoff decision making
Rejected takeoff briefing
Stopping during takeoff roll
Abbreviations:
ADM
TEM
POH
AFM
PPL
PTR
TC
FTM
AIM
CARs
Common Misspellings:
aborted takeoff / aborted take-off
rejected takeoff / rejected take-off
centreline / centerline
runway incursion / runway incusion
Not To Be Confused With:
Engine Failure After Takeoff
Rejected Landing
Go-Around
Accelerate-Stop Distance (multi-engine/transport category)
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AUTHORITY
Primary References:
Transport Canada Flight Training Manual
Applicable Aircraft POH/AFM
Supporting References:
Transport Canada Flight Instructor Guide
FAA Airplane Flying Handbook (decision-making guidance)
Transport Canada References:
Flight Training Manual
Flight Instructor Guide
Pilot Training Record
Flight Test Guide
Transport Canada AIM
Aircraft References:
Applicable POH/AFM — Normal Procedures, Emergency Procedures, Abnormal Procedures
Regulatory References:
Canadian Aviation Regulations
Transport Canada AIM
Industry References:
Manufacturer operating manuals
Commercial SOPs
Transport Canada safety publications
ICAO Threat and Error Management guidance
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AI CONTEXT
Knowledge Node Summary:
Teaches pilots to continuously evaluate aircraft performance and operational conditions during every takeoff, make timely continue-or-reject decisions, safely perform rejected takeoffs, and recognize the human factors that influence decision making.
Educational Purpose:
Develop sound judgment before the aircraft leaves the ground by teaching that every takeoff is an ongoing safety evaluation rather than an automatic commitment to flight.
Context Window:
Serves as the capstone lesson of the Air Exercise 16 takeoff series by integrating aircraft handling, performance awareness, and aeronautical decision making before progressing to circuit operations.
AI Retrieval Context:
This lesson is part of the Albatross Pilot Pathway Transport Canada–aligned Private Pilot curriculum. It teaches rejected (aborted) takeoff decision making through continuous evaluation of aircraft performance, runway remaining, environmental hazards, and operational risk. Topics include continue gates, decision windows, rejected takeoff briefings, human factors such as plan continuation bias and startle effect, and generic rejected takeoff procedures while emphasizing that aircraft-specific procedures are always governed by the applicable POH.
Related Knowledge Families:
● Takeoffs
● Aeronautical Decision Making
● Threat and Error Management
● Flight Safety
● Emergency Procedures
Retrieval Priority:
Core
AI Confidence Notes:
Aircraft-specific rejected takeoff procedures, braking techniques, and emergency actions vary by aircraft type and manufacturer. This lesson teaches decision-making principles and generic procedures; the applicable POH/AFM always takes precedence.
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TEACHING FRAMEWORK
Teach As:
“The Airplane Must Earn the Right to Fly.”
Mental Model:
Every takeoff begins as a continuous evaluation. The aircraft earns permission to continue only by demonstrating normal performance, controllability, and acceptable conditions throughout the takeoff roll.
Decision Rule:
If the aircraft, runway, environment, or operational situation no longer supports a safe departure, reject the takeoff promptly while sufficient runway remains and follow the aircraft’s POH procedures.
Memory Aid:
Recognize → Decide → Reject (or Continue) → Control → Stop → Assess
Instructor Notes:
Treat every takeoff as an exercise in judgment, not simply aircraft handling. Introduce the concepts of the Decision Window and Continue Gates early in the lesson, reinforce them throughout practical training, and use scenario-based discussions to demonstrate how delayed decisions often create greater risk than the original abnormality.
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VERSION CONTROL
Version:
1.0
Author:
Albatross Pilot Pathway
Technical Reviewer:
Pending
Educational Reviewer:
Pending
Date Created:
2026-07-18
Last Updated:
2026-07-18
Review Frequency:
Annual
Next Review Date:
2027-07-18
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COPYRIGHT
© 2026 Albatross Pilot Pathway, a division of 10250300 Manitoba Inc. All rights reserved.
COPYRIGHT © 2026 Albatross Pilot Pathway, a division of 10250300 Manitoba Inc. All rights reserved.