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Ground school

The Student Pilot Desk

ACS practice quizzes, a nav log that does the wind math, and the small calculators you reach for during cross-country planning. Study aids, built for the kitchen table.

For study only. This page is not a substitute for training from an authorized flight instructor (CFI) or for official FAA sources, and nothing here is for real navigation or flight planning. Regulations change; check the current eCFR, AIM and your aircraft's POH, and get an official weather briefing before every flight.

Calculators

The flight bag helpers.

Crosswind & headwind

Wind components

Enter a runway number (11, 29L) or an exact heading (113). Tower and ATIS winds are magnetic like runway numbers; METAR winds are true, so correct them for variation first. Compare with your POH's maximum demonstrated crosswind and your personal limits.

Density altitude

Pressure & density altitude

Pressure altitude ≈ elevation + (29.92 − altimeter) × 1,000. Density altitude ≈ pressure altitude + 120 × (OAT − ISA temperature in °C), where ISA ≈ 15°C − 2°C per 1,000 ft. A rule-of-thumb estimate (PHAK ch. 11); use your POH performance charts for takeoff and climb numbers.

Practice

Private Pilot ACS quizzes.

85 original questions grouped by Area of Operation in the Private Pilot Airplane ACS (FAA-S-ACS-6C). The ACS replaced the old Practical Test Standards (PTS) for this certificate. Open an area to start.

Area I · Tasks A–BPilot Qualifications & Airworthiness13 questions
    Area I · Task CWeather Information12 questions
      Area I · Tasks D–ECross-Country Planning & Airspace12 questions
        Area I · Tasks F–HPerformance, Systems & Human Factors12 questions
          Areas II–IIIPreflight Procedures & Airport Operations12 questions
            Area VINavigation12 questions
              Areas IX & XIEmergency & Night Operations12 questions
                All areasMixed 20, random20 questions
                  Milestones

                  Solo to checkride checklist.

                  A high-level map of the endorsements and experience in 14 CFR 61.87, 61.93 and 61.103–61.109 for an airplane single-engine private certificate. Your instructor decides when you're ready; AC 61-65 has the sample endorsement wording. Ticks are saved in this browser only.

                  Before your first solo

                  Solo cross-country

                  Private pilot checkride (airplane single-engine)

                  Free from the FAA

                  Official resources.

                  The primary sources behind every answer on this page. All free.

                  Signed off for your first solo? Mark it with something from the CrosswindBay shop.