Pass your FAA Private Pilot written test.

An adaptive course with a grounded AI ground instructor, unlimited practice exams, and progress that measures real mastery — not just videos watched.

Start the free course →Try 10 test questions — no signup →

No card required — free forever, not a trial. Meet the AI instructor →

Flight instructor or flight school? Share one link with your students and see who's ready before the next lesson — free. Set up your instructor portal →

A student pilot standing beside a Cessna trainer on the ramp after a milestone flight

22
Modules: 899
Practice questions: 226
Tracked objectives: FAA
Source-cited curriculum

Why I built this: “I retired after 30 years as a Bay Area engineer, learned to fly, and built the free ground school I wished I’d had, first for my wife and our 17-year-old son.” — OB Bedier, founder Read the story →

Adaptive, not linear

Mastery over minutes watched

A Bayesian mastery model tracks what you actually know per objective, decays it over time, and schedules review — so completion means readiness.

Grounded AI instructor

Cited answers, safe refusals

The AI tutor answers only from approved study material with citations. It refuses real-time operational and medical questions instead of guessing.

Honest by design

Source-controlled curriculum

Lessons cite FAA source material. The private pilot curriculum, practice questions and answer choices were reviewed by a panel of three certificated flight instructors (CFIs), alongside our AI review system (AI_CFI). Certificates are cryptographically verifiable.

Getting ready for the knowledge test

Take a free practice test →

Ten knowledge-test style questions on a topic you pick, graded with explanations. No signup.

How the written test works →

Format, passing score, what it covers and how to prepare without paying for a course.

For flight instructors →

Assign the free ground school and see each student’s readiness by objective, with their consent.

The facts, straight

Is the complete course free?	Yes — every lesson, unlimited practice, and mock exams.
Credit card required?	No. Not at signup, not ever for the course.
Is it a limited trial?	No — free is the standing model, not a promotion.
Which FAA test?	Private Pilot — Airplane knowledge (written) test.
Curriculum	22 modules · 226 tracked objectives
Practice questions	899 (302 original with public explanations)
Mock exams	Unlimited — real format: 60 questions, 2 h 30 min, graded server-side.
FAA endorsement included?	No. PPL Free does not provide the knowledge-test endorsement; an authorized instructor (usually your CFI) gives it. We explain how.
Primary sources	PHAK, AFH, AIM, 14 CFR, the Private Pilot ACS, and the official FAA test figures.
What costs money?	Two optional one-time add-ons: $99 certificate · $99 unlimited AI instructor (3 free).

More: what's included · the endorsement, explained · FAQ

See a sample lesson

From Airspace and Operating Requirements — one of 22 modules you can start right now. Browse the full curriculum →

6 min

The Airspace System at a Glance

Controlled airspace is Classes A–E; uncontrolled airspace is Class G. VFR private pilots mostly operate in E and G and transit B/C/D near busy airports.

7 min

Busy Airports: Class B, C and D

D = be heard; C = be heard and seen (transponder + ADS-B); B = be heard, seen, and explicitly cleared.

6 min

VFR Weather Minimums

Class B: 3 SM, clear of clouds. Class C/D/E <10,000: 3 SM + 500/1,000/2,000. Class G day low: 1 SM, clear of clouds. Special VFR (by ATC clearance) allows clear-of-clouds and 1 SM in a controlled surface area; at night it requires an instrument-rated pilot and instrument-equipped aircraft.

Why student pilots start here

No spin — just what the course actually gives you.

Genuinely free

Every lesson, unlimited practice, and full-length mock exams — no credit card, not a trial.

Straight from the sources

Written from PHAK, AFH, AIM, 14 CFR and the Private Pilot ACS — 226 tracked objectives, each traceable to its source.

Adapts to you

Your topic mastery is tracked as you answer, so practice steers toward the areas that need it.