The Airline Transport Pilot knowledge test is the last written you will ever take. Study the real questions you will see on exam day, with sourced explanations, on every device you own — for $75 and a full year of access.
Three separate FAA knowledge tests sit behind the ATP certificate. They are not interchangeable, and each has its own question pool.
| Test | Who takes it | Questions | Time | To pass | Result valid |
|---|---|---|---|---|---|
| ATM | ATP certificate with a multiengine airplane class rating — the airline track, and by far the most commonly taken | 125 | 3.5 hrs | 88 correct | 60 months |
| ATS | ATP certificate, single-engine airplane, under part 135 | 90 | 2.5 hrs | 63 correct | 24 months |
| ATH | ATP certificate, helicopter, under part 135 | 80 | 3.0 hrs | 56 correct | 24 months |
Every ATP knowledge test is multiple choice, taken on a computer at a PSI testing center, and graded against the same 70% passing score. Figures come from the FAA Airman Knowledge Testing Matrix revised 22 October 2025.
For the ATM test, a graduation certificate from an authorized part 121, 135, 141 or 142 Airline Transport Pilot Certification Training Program is the only accepted authorization, under 14 CFR 61.156. An instructor endorsement will not get you seated.
That is an FAA requirement, not something any test prep provider can issue — ours included. Book your CTP first, then study the written alongside it.
Neither the ATS nor the ATH test requires an instructor endorsement or any other written authorization for an initial attempt, under 14 CFR 61.153(f). You can walk in and test as soon as you are ready.
You will need to be 21 for either. The ATM sets its minimum age at 18, which is what makes a restricted-privileges ATP possible.
ATP prep has been sold the same way for a long time: download a program, activate it on one machine, and hope you are near that machine when you have twenty minutes to study. We took a different approach.
Study on your phone at the hotel, your iPad on the jumpseat, and your laptop at home — the same account, progress in sync, no activation limit and nothing to install.
Windows, macOS, iOS, Android, Chromebook. If it has a browser and a connection, it runs the full course — not a cut-down companion app.
The bank is updated continuously from real test-taker reports, so you are never studying a snapshot that shipped last quarter. Nothing to re-download.
ATP questions lean hard on figures. Every relevant chart, table and diagram appears next to the question, so you are not flipping through a supplement while the clock runs.
An electronic E6-B sits alongside the calculation questions, so you can work a problem the way you will on test day without hunting for a second device.
Full-length simulations at the real question count and distribution, with your score withheld until you submit — the same way it happens at the testing center.
Most ATP prep is still sold as downloadable software licensed to a single machine. Here is where that differs from what you get here.
| Feature | Pass the Written | Typical downloadable ATP prep |
|---|---|---|
| Devices per purchase | Unlimited | Commonly licensed to one |
| Platforms | Any browser, incl. Android | Often Windows, macOS and iPad only |
| Installation | None — sign in and study | Download and activate |
| Question bank updates | Several times a month, automatic | Periodic, often a manual update |
| Figures and charts | Inline with each question | Varies |
| Built-in E6-B | Included | Rarely included |
| Access period | One year | Commonly one year |
| Price per ATP course | $75 | Commonly $90 |
We are newer than some of the names in this space, so we would rather you check the specifics above than take our word for it. Everything here is visible before you pay — the platform tour, the pricing, and the support channel are all on this site.
One payment, one full year of access, every device you own. Pick the test you are sitting — the question bank, practice exams, figures and E6-B are included with each.
It depends which ATP knowledge test you take. The Airline Transport Pilot Multiengine Airplane (ATM) test has 125 questions, the Airline Transport Pilot Single Engine Airplane (ATS) test has 90, and the Airline Transport Pilot Helicopter (ATH) test has 80. All three are multiple choice and all three are graded on the same 70% passing score.
70%, the same as every FAA knowledge test. In practice that means 88 of 125 correct on the ATM, 63 of 90 on the ATS, and 56 of 80 on the ATH. Aim well above the minimum — the areas you miss are printed on your Airman Knowledge Test Report and your examiner can revisit them on the oral.
The FAA allots 3.5 hours for the ATM, 2.5 hours for the ATS, and 3.0 hours for the ATH. Every ATP knowledge test is taken on a computer at a PSI testing center.
Yes. For the ATM test, a graduation certificate from an authorized 14 CFR part 121, 135, 141 or 142 Airline Transport Pilot Certification Training Program is the only accepted form of authorization, per 14 CFR 61.156. An instructor endorsement will not get you in the door. The ATS and ATH tests are different — neither requires any endorsement or written authorization for an initial attempt.
A passing ATM result is valid for 60 calendar months — five years, rather than the usual two. ATS and ATH results follow the standard 24 calendar month window. Check your own Airman Knowledge Test Report, since the validity period is what governs when your practical test must be completed.
Most pilots on an airline track take the ATM, the multiengine airplane test — it is the one required for an ATP certificate with a multiengine class rating and by far the most commonly taken. The ATS covers the single-engine airplane ATP under part 135, and the ATH covers the helicopter ATP under part 135.
Yes. Pass the Written runs in a browser on any device — phone, tablet, laptop, or a shared computer at work — and your progress follows you between them. There is no download, no install, and no limit on how many devices you use. Windows, macOS, iOS and Android all work.
Each ATP course — ATM, ATS or ATH — is $75 for a full year of access. That is one payment, not a subscription: there is nothing to renew and nothing to cancel.
Yes. We update the bank several times a month from real test-taker feedback rather than shipping periodic downloads, so what you study is what is being asked now. The date of the most recent update is shown on our homepage.
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