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100+ Free FAA AFG Knowledge Test — Flight Instructor Glider (Added Rating) Practice Questions

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Key Facts: FAA AFG Knowledge Test — Flight Instructor Glider (Added Rating) Exam

Federal Aviation Administration (FAA)

Exam Board

FAA Airman Testing Standards

AFG

Test Code

FAA Airman Knowledge Testing Matrix 2026

25 Questions

Question Count

Official FAA Test Specification

70%

Passing Score

14 CFR § 61.35

Prepare for the FAA AFG Flight Instructor Glider Added Rating knowledge test with 100 high-quality practice questions covering Part 61/91 rules, polar curves, MacCready speed-to-fly, aero-tow weak link calculations, winch launch safety, and soaring meteorology.

Sample FAA AFG Knowledge Test — Flight Instructor Glider (Added Rating) Practice Questions

Try these sample questions to test your FAA AFG Knowledge Test — Flight Instructor Glider (Added Rating) exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1According to 14 CFR § 61.183(e) and § 61.191, an applicant applying for a Flight Instructor Certificate with a Glider rating who already holds an active Flight Instructor Certificate in another category is:
A.Exempt from taking the Fundamentals of Instructing (FOI) knowledge test
B.Required to retake the Fundamentals of Instructing (FOI) knowledge test within 24 calendar months
C.Exempt from taking both the FOI and the AFG aviation knowledge tests
D.Required to log at least 50 hours of dual flight instruction given in a powered aircraft
Explanation: Under 14 CFR § 61.183(e), an applicant for an additional flight instructor rating who already holds a flight instructor certificate is not required to pass the Fundamentals of Instructing (FOI) knowledge test. However, the applicant must still pass the appropriate aeronautical knowledge test for the category rating sought (AFG).
2Under 14 CFR § 61.189, how long must a certificated flight instructor retain records of student solo flight endorsements and practical test endorsements?
A.At least 3 years
B.At least 2 years
C.At least 5 years
D.Indefinitely
Explanation: 14 CFR § 61.189(b) requires each flight instructor to sign the logbook of each person to whom that instructor has given flight training or ground training and maintain a record in a logbook or separate document for at least 3 years. The record must include the name of each student endorsed for solo flight and the results of practical tests endorsed.
3Pursuant to 14 CFR § 61.195(a), a certificated flight instructor may not conduct more than how many hours of flight training in any 24-consecutive-hour period?
A.8 hours
B.6 hours
C.10 hours
D.12 hours
Explanation: Under 14 CFR § 61.195(a), a flight instructor may not conduct more than 8 hours of flight training in any 24-consecutive-hour period to prevent instructor fatigue and ensure safety.
4Before endorsing a student pilot logbook for solo flight in a glider, 14 CFR § 61.87 requires the flight instructor to administer a presolo knowledge test. The test must cover which of the following?
A.Applicable sections of Part 61 and 91, airspace rules, and flight characteristics/limitations for the specific make and model of glider
B.Commercial pilot privileges, high-altitude wave operations, and multi-engine soaring procedures
C.Instrument flight rules (IFR), holding patterns, and MLS approach procedures
D.Aerobatic pitch maneuvers, spin entries from inverted flight, and jet engine thrust calculations
Explanation: 14 CFR § 61.87(b) mandates that a student pilot must demonstrate satisfactory aeronautical knowledge on a presolo knowledge test covering Part 61/91 rules, airspace regulations, and local operational procedures for the specific make and model glider to be flown. The instructor must review all incorrect answers with the student.
5What is the minimum age required under 14 CFR § 61.83 for a student pilot certificate for the operation of a glider?
A.14 years of age
B.16 years of age
C.15 years of age
D.17 years of age
Explanation: 14 CFR § 61.83(b) sets the student pilot age at 14 for the operation of a glider or balloon, against 16 under § 61.83(a) for everything else. The age is a student pilot certificate eligibility requirement, so it gates solo flight in a glider.
6To act as pilot in command of an aircraft towing a glider, 14 CFR § 61.69 requires a pilot to have logged at least how many hours of pilot-in-command time in the aircraft category, class, and type being used?
A.100 hours PIC time
B.50 hours PIC time
C.20 hours PIC time
D.10 hours PIC time
Explanation: 14 CFR § 61.69(a)(2) requires at least 100 hours of pilot-in-command time in the aircraft category, class, and type (if a type rating is required) that the pilot is using to tow. The same section also requires a private, commercial, or ATP certificate with a powered-aircraft category rating, a training endorsement covering towing techniques, emergency procedures, signals and maximum bank angles, and three tows or simulated tows plus an endorsement for them.
7Under 14 CFR § 91.309(a)(3), if a weak link is installed at the glider end of the towline, it must have a breaking strength of not less than what percentage, and not more than what percentage, of the maximum certificated operating weight of the glider?
A.80% minimum and 200% maximum
B.50% minimum and 150% maximum
C.100% minimum and 250% maximum
D.75% minimum and 125% maximum
Explanation: 14 CFR § 91.309(a)(3) states that a weak link installed at the glider end of the towline must have a breaking strength of at least 80 percent of the maximum certificated operating weight of the glider, but not more than 200 percent.
8CALCULATION: A glider has a maximum certificated operating weight of 1,350 lbs. Under 14 CFR § 91.309, what is the allowable range for the breaking strength of a weak link installed at the glider release mechanism?
A.1,080 lbs to 2,700 lbs
B.900 lbs to 2,250 lbs
C.1,350 lbs to 3,375 lbs
D.675 lbs to 2,025 lbs
Explanation: Calculating 80% and 200% of 1,350 lbs: Minimum breaking strength = 0.80 × 1,350 = 1,080 lbs. Maximum breaking strength = 2.00 × 1,350 = 2,700 lbs. Therefore, the weak link must break between 1,080 lbs and 2,700 lbs.
9Under 14 CFR § 91.309(a)(2), what towline release mechanism operational requirement applies to both the towplane and the glider during aero-tow operations?
A.Both aircraft must be equipped with a quick-release mechanism that functions properly and can be operated by the pilot of each aircraft from the normal pilot station
B.Only the towplane is required to have a pilot-operated quick release mechanism
C.Only the glider is required to have an operational quick release mechanism
D.Release mechanisms are optional if a weak link with a 500-lb breaking strength is used
Explanation: 14 CFR § 91.309(a)(2) requires that both the towing aircraft and the glider be equipped with a release mechanism that has been tested and found free from malfunction, and that can be operated independently by the pilot of each aircraft from their control station.
10According to 14 CFR § 91.113(d)(2), which of the following aircraft has the right-of-way over all other engine-driven aircraft, rotorcraft, and airships?
A.A glider
B.An airship
C.A powered parachute
D.An airplane on a multi-mile instrument final approach
Explanation: 14 CFR § 91.113(d)(2) establishes right-of-way hierarchy: a glider has right-of-way over an airship, powered parachute, weight-shift-control aircraft, airplane, or rotorcraft. (Note: an aircraft towing or refueling another aircraft has right-of-way over all engine-driven aircraft, but gliders inherently yield only to balloons or aircraft in distress).

About the FAA AFG Knowledge Test — Flight Instructor Glider (Added Rating) Exam

The FAA Flight Instructor Glider Added Rating (AFG) knowledge test evaluates certificated flight instructors adding a glider rating under 14 CFR § 61.191. Topics include 14 CFR Part 61/91 regulations, glider flight instruction pedagogy, soaring aerodynamics, polar performance curves, aero-tow and winch launch operations, soaring meteorology, and airspace rules.

Assessment

25 multiple-choice questions administered via computer at PSI Services test centers. 1 hour time limit.

Time Limit

1 hour (60 minutes)

Passing Score

70%

Exam Fee

$175 (Federal Aviation Administration (FAA) / PSI Services)

FAA AFG Knowledge Test — Flight Instructor Glider (Added Rating) Exam Content Outline

30%

14 CFR Part 61 / 91 Glider Flight Instruction & Endorsement Rules

Part 61 subparts C, E, H, instructor privileges, limitations, solo/cross-country endorsements, recordkeeping, right-of-way, oxygen, towing regulations under §91.309.

25%

Glider Flight Instruction Pedagogy & Soaring Aerodynamics

FOI principles, polar curves, best glide, minimum sink, MacCready speed-to-fly, water ballast effects, stall/spin dynamics, adverse yaw.

25%

Launch & Recovery Instruction

Aero-tow signals, tow emergency release, weak link strength calculations, winch launch procedures, cable break recovery, pattern planning, spoilers, side slips, off-field landing.

20%

Soaring Meteorology & Airspace

Thermals, CCL calculations, Thermal Index, ridge lift, mountain wave, lenticular clouds, rotor turbulence, airspace classes A-G, VFR cloud clearances, wave windows.

How to Pass the FAA AFG Knowledge Test — Flight Instructor Glider (Added Rating) Exam

What You Need to Know

  • Passing score: 70%
  • Assessment: 25 multiple-choice questions administered via computer at PSI Services test centers. 1 hour time limit.
  • Time limit: 1 hour (60 minutes)
  • Exam fee: $175

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

FAA AFG Knowledge Test — Flight Instructor Glider (Added Rating) Study Tips from Top Performers

1Memorize 14 CFR § 91.309 tow rope weak link strength ranges (80% to 200% of glider max certificated weight).
2Practice tangent calculations on polar curves for headwind/tailwind speed-to-fly and water ballast speed adjustments.
3Understand winch launch cable break actions based on altitude (below 200 ft vs above 200 ft AGL).
4Master thermal index (TI) interpretation and convective condensation level (CCL) cloud base calculation formulas.
5Review right-of-way rules under 14 CFR § 91.113 where gliders have right-of-way over powered aircraft, airships, and rotorcraft.

Frequently Asked Questions

What is the AFG test code and who takes this exam?

AFG stands for Flight Instructor Glider (Added Rating). It is taken by pilots who already hold a Flight Instructor Certificate in another category (such as Airplane Single-Engine) and are adding a Glider rating to their flight instructor certificate under 14 CFR § 61.191.

Do I need to take the Fundamentals of Instructing (FOI) exam again for AFG?

No. Certificated flight instructors adding a rating are exempt from taking the FOI knowledge test pursuant to 14 CFR § 61.183(e).

How many questions are on the official FAA AFG exam?

The official FAA AFG exam consists of 25 multiple-choice questions with a 1-hour time limit. A score of 70% or higher is required to pass.

What documents are required to endorse a student for solo glider flight?

Under 14 CFR § 61.87, the instructor must endorse the student's logbook and student pilot certificate (or logbook endorsement for solo privileges) for the specific make and model glider, after administering a presolo knowledge test and practical presolo training.

Does the FAA publish topic weightings for the AFG knowledge test?

No. The FAA Airman Knowledge Testing Matrix publishes the test code, question count, minimum age, allotted time and passing score, but no percentage breakdown by subject. The content outline and percentages shown on this page describe how this free practice bank distributes its questions across the knowledge areas drawn from the applicable FAA testing supplement, Airman Certification Standards or Practical Test Standards, and the FAA handbooks for this test.