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ATP Single-Engine practice test and AI study plan
Prepare for the FAA Airline Transport Pilot Single-Engine Airplane (ATS) knowledge test. Track every topic on the test, master each one with an AI tutor that cites the FAA handbooks, and take timed mock exams weighted like the real thing.
- Questions
- 90
- Time allowed
- 3 hours
- Passing score
- 70%
- ACS topics
- 596
How it works
What’s on the ATS test
Questions come from the knowledge and risk management elements of the Airline Transport Pilot and Type Rating for Airplane Category ACS. Our mock exams spread the 90 questions across its areas in proportion to how many topics each has; the FAA does not publish its exact weighting.
| Area of operation | Topics | Mock exam questions |
|---|---|---|
| I. Preflight Preparation | 157 | 23 |
| II. Preflight Procedures | 75 | 11 |
| III. Takeoffs and Landings | 114 | 17 |
| IV. In-flight Maneuvers | 26 | 4 |
| V. Stall Prevention | 41 | 7 |
| VI. Instrument Procedures | 95 | 14 |
| VII. Emergency Operations | 74 | 11 |
| VIII. Postflight Procedures | 14 | 3 |
Taking the ATS knowledge test
What you need before, during, and after the FAA Airline Transport Pilot Single-Engine Airplane test. Requirements change, so confirm with the sources below before you schedule.
Recent changes
- Starting October 26, 2026, some questions include their images on screen instead of in the testing supplement.
Before the test
- Minimum age
- You must be at least 21 to take the ATS test.
- Authorization
- No endorsement or training certificate is needed to take this test.
- Registration
- Get an FAA Tracking Number (FTN) by creating a profile in IACRA, then schedule with PSI, the FAA's testing vendor, online or by phone at 844-704-1487. Cancel or reschedule at least 24 hours ahead, and arrive about 15 minutes early.
- Cost
- PSI charges $175 per knowledge test, plus tax where it applies.
On test day
- Format
- 90 multiple-choice questions in 3 hours (180 minutes). You need 70% to pass.
- Bring
- A current government-issued photo ID that shows your date of birth, signature, and physical residential address (a P.O. box doesn't count). Applicants under 18 without an acceptable ID need a parent or guardian to attest to their identity.
- Provided
- The test center provides the testing supplement, scratch paper, and a pen, and the test software has a built-in calculator. You may bring an E6B, plotter, or a basic or aviation calculator if you clear its memory in front of the proctor, though the center can refuse any personal calculator.
After the test
- Results
- You get your printed Airman Knowledge Test Report (AKTR) at the test center as soon as you finish. It shows your score and a code for each knowledge area you missed.
- Validity
- A passing result is valid for 24 calendar months for the practical test.
- If you fail
- You need additional training and a written endorsement from the authorized instructor who gave it, then present the failed test report at the retest. There is no required waiting period.
- Higher score
- You can retake a passed test to improve your score after 30 days; the most recent score is the one that counts.
- Next step
- Pass the ATP practical test for the single-engine class rating.
Sources: 14 CFR 61.39 · 14 CFR 61.49 · 14 CFR 61.153 · FAA Airman Knowledge Testing Matrix · FAA airman testing · PSI FAA testing programs · FAA Order 8080.6H. Checked October 2026.
Online ground school courses for the ATS test
A course teaches the material; KTR Helper helps you master it and track what’s left. Here are the options we know of. Listings marked Sponsored are paid placements and appear first; the rest are shown in a rotating random order.
- FAA Test Prep Online: Airline Transport Pilot Gleim Aviationtest prep
1,650+ multiple-choice questions with explanations, study outlines, and unlimited exam-style practice tests.
- Online Ground School: Airline Transport Pilot Gleim Aviationvideo course + test prep
Self-directed course of about 35 hours with exam-style practice tests.
- Prepware Online ASAtest prep
Cloud-based question bank with study sessions and practice tests for one chosen FAA knowledge test, with 24 months of access.
- GroundSchool - Airline Transport Pilot Dauntless Aviationtest prep app, works offline
FAA-style questions with explanations for the ATP tests, available offline with free updates.
- ATP Study Courses Sheppard Airtest prep app, works offline
Question-based study software for the ATP tests that works offline.
Frequently asked questions
How many questions are on the ATP Single-Engine knowledge test?
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The FAA Airline Transport Pilot Single-Engine Airplane (ATS) knowledge test has 90 multiple-choice questions, 3 hours (180 minutes) to answer them, and a passing score of 70%.
What does the ATP Single-Engine test cover?
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Questions come from the knowledge and risk management elements of the Airline Transport Pilot and Type Rating for Airplane Category Airman Certification Standards: Preflight Preparation; Preflight Procedures; Takeoffs and Landings; In-flight Maneuvers; Stall Prevention; Instrument Procedures; Emergency Operations; Postflight Procedures.
How old do you have to be to take the ATP Single-Engine test?
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You must be at least 21 to take the ATS test.
Do I need an endorsement to take the ATS test?
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No endorsement or training certificate is needed to take this test.
How much does the ATP Single-Engine knowledge test cost?
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PSI charges $175 per knowledge test, plus tax where it applies. You schedule through PSI after getting an FAA Tracking Number (FTN) in IACRA.
How long are ATS test results valid?
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A passing result is valid for 24 calendar months for the practical test.
What happens if I fail the ATS test?
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You need additional training and a written endorsement from the authorized instructor who gave it, then present the failed test report at the retest. There is no required waiting period.
How should I study for the ATP Single-Engine test?
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Take a ground school course to learn the material, then use KTR Helper to track all 596 ACS topics, master each one with the AI tutor and practice questions, and take timed mock exams. After the test, add your knowledge test report and the codes you missed move to the top of your plan for the checkride.
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