A complete private pilot ground school. Actually free.

What's included — free

• 22 modules, 88 lessons covering the full knowledge-test syllabus: aerodynamics, systems, weight & balance, airspace, regulations, weather, navigation, cross-country planning, human factors, and more — browse the whole curriculum without an account, or see it organized by ACS Area.
• 477 original explained questions plus a 872-item graded practice bank and unlimited practice sessions.
• Unlimited mock exams in the real FAA format — 60 questions, 2h30 timer, graded server-side with per-topic weak-area reports.
• Adaptive mastery tracking: a Bayesian model scores every objective, decays it over time, and schedules review — completion means measured readiness.
• The official FAA source library: PHAK, AFH, AIM, 14 CFR and the testing-supplement figures, deep-linked from every lesson. Free study tools included.

What costs money (optional, one-time)

• A verifiable $99 Certificate of Completion when you finish — a course-completion record, not an FAA pilot certificate, rating, or endorsement.
• $99 for unlimited AI-instructor questions (your first 3 are free) — a retrieval-grounded study tool that cites FAA sources and refuses to guess.

You can complete the entire course without buying either. Why is it free?

What it doesn't do

No online course can endorse you for the FAA test — that signature belongs to a CFI/AGI. We explain exactly how that works (and give you the readiness evidence to bring to your instructor) on the knowledge-test endorsement page. Content is reviewed through an AI instructional-review system (AI_CFI) — an AI review, not a certificated flight instructor — and cites current FAA publications throughout. See safety & accuracy.

Create a free account → (only needed to save progress — reading is open to everyone)