Format and Scoring
The private pilot airplane knowledge test — test code PAR — is the written gate between you and the checkride. It is a single sitting at a testing center, and you know whether you passed before you walk out.
Multiple choice, three options each, drawn from the airman knowledge test bank. Some sittings include unscored validation questions being trialled for future tests — they do not count for or against you, and they are not part of the 60. They do, however, come out of your two hours: the FAA states the allotted time includes the time to answer them.
You can miss 18 and still pass. Your score report lists the ACS codes for every question you got wrong, and the examiner will probe those areas on the oral — so a bare pass creates work later.
Two hours is the figure for PAR specifically — Private Pilot Airplane. Other private-category tests differ: glider and balloon are allotted 2.5 hours, and the airplane/recreational transition test is 1.5. Well-prepared applicants routinely finish in under an hour; the figure-supplement questions are what slow people down.
Taken in person at an FAA-approved knowledge testing center, not at home. You bring government photo ID and your instructor’s endorsement, and you get your result before you leave.
The Endorsement and the 24-Month Clock
You cannot simply book the test. 14 CFR 61.35 requires a written statement or logbook endorsement from an authorized instructor certifying that you have completed the required ground training or home-study course and are prepared. Most online ground schools issue this automatically when you finish their course, which is one of the quieter reasons they are worth the money.
Once you pass, the result is good for 24 calendar months — you must take the practical test inside that window or sit the written again. In practice this is generous: almost nobody takes two years from written to checkride. But it is worth knowing if training stalls, because an expired written is a genuinely demoralizing way to lose momentum.
How to Prepare (Without Just Memorizing)
The written has a well-known shortcut: the question bank is finite, and you can pass by drilling it until the answers are familiar. It works, and it is a bad idea — because the same material comes back at you in the oral exam, out loud, from an examiner who will ask why.
Memorizing question-and-answer pairs gets you a pass and a brutal oral exam. The knowledge tested here is the same knowledge the examiner probes in person — airspace, weather, regulations, performance. Study it properly and the written becomes a checkpoint rather than an obstacle.
The supplement questions — sectional excerpts, weight-and-balance graphs, performance charts, the wind triangle — are where most points are lost. They are also the most transferable to actual flying. Do them by hand until the process is automatic.
A practice score of 85% hides which 15% you keep missing. Sort your misses by subject and drive the weakest area to consistency before moving on. That is what turns a 75% into a 95%.
The written is the most common late-stage bottleneck — students at 50 hours who still have not sat it stall out. Taking it early also makes flight lessons make more sense, because the ground knowledge arrives before the maneuvers that depend on it.
When to Take It
Take it early — in the first third of training. The written is the most common late-stage bottleneck in flight training: students arrive at 50 hours, checkride-ready in the airplane, and then lose six weeks to a test they could have sat in month two.
There is a learning argument too. Airspace, weather theory, performance, and regulations are the scaffolding your flight lessons hang on. Studying them before you need them in the cockpit means each lesson lands on prepared ground instead of introducing two new things at once. Your checkride preparation then becomes revision rather than first contact.
Drill the areas you actually miss
FlightKit’s quizzes are organized by ACS area, so you can see which subjects are weak instead of watching a single percentage. Then sit a spoken mock oral with the AI examiner and find out whether you really know it.
Keep learning
Frequently Asked Questions
How many questions is the FAA private pilot written test?
Sixty multiple-choice questions with a 70% passing score and 2 hours allotted. The test code is PAR (Private Pilot Airplane) — worth naming, because the allotted time varies by test within the private category: glider and balloon get 2.5 hours. Some sittings add unscored validation questions, which are not counted in the 60 and do not affect your score, but the allotted time does include answering them. Source: FAA Airman Knowledge Testing Matrix, revised 22 October 2025.
How long is the FAA written test good for?
Your knowledge test result is valid for 24 calendar months. You must take the practical test within that window or retake the written. Because calendar months run to the end of the month, a test passed in March is good through the end of March two years later.
Do I need an endorsement to take the FAA written test?
Yes. Under 14 CFR 61.35 you need a written statement or logbook endorsement from an authorized instructor certifying that you have completed the required ground training or home-study course and are prepared for the test. Many online ground schools issue this endorsement on completion.
Can I take the FAA written test online at home?
No. The airman knowledge test must be taken in person at an FAA-approved knowledge testing center. You bring a government-issued photo ID and your instructor endorsement, and you receive your score report before you leave.
What happens if I fail the FAA written test?
You can retake it, but not immediately on your own — you need additional instruction and a new endorsement from an authorized instructor certifying you are ready to retest (14 CFR 61.49). You also pay the testing fee again. Failing is not a black mark on your certificate, but the retake process is deliberately a speed bump.
What is a good score on the FAA written test?
Seventy percent passes, but aim higher for a practical reason: your score report lists an ACS code for every question you missed, and the examiner is expected to cover those areas during the oral exam. A 95% leaves the examiner three topics to revisit; a 72% hands them a long list.
When should I take the written test during training?
Most instructors recommend the first third of training, well before solo cross-countries. It removes the most common late-stage bottleneck, the knowledge makes your flight lessons more productive, and it leaves the full 24-month validity window comfortably ahead of your checkride.