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100+ Free FAA FNX Knowledge Test — Flight Navigator Practice Questions

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Key Facts: FAA FNX Knowledge Test — Flight Navigator Exam

FNX

Test Code

FAA Airman Testing Matrix

3 Hours (180 min)

Time Limit

FAA Testing Parameters

70%

Passing Score

14 CFR Part 63

80 Questions

Official Questions

FAA PSI Center Matrix

Prepare for the FAA Flight Navigator (FNX) Knowledge Test with 100 high-quality practice questions featuring detailed explanations and step-by-step mathematical solutions.

Sample FAA FNX Knowledge Test — Flight Navigator Practice Questions

Try these sample questions to test your FAA FNX Knowledge Test — Flight Navigator exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under 14 CFR § 63.51, which of the following is a mandatory general eligibility requirement for an applicant seeking an FAA Flight Navigator Certificate?
A.Must be at least 18 years of age and hold a Commercial Pilot Certificate
B.Must be at least 21 years of age and be able to read, speak, write, and understand English
C.Must hold a valid First-Class Medical Certificate issued within the preceding 6 calendar months
D.Must have completed at least 500 hours of cross-country PIC flight time in multi-engine aircraft
Explanation: 14 CFR § 63.51 specifies that an applicant for a Flight Navigator Certificate must be at least 21 years of age, be able to read, speak, write, and understand the English language, and satisfy the knowledge and practical testing requirements.
2According to 14 CFR § 63.55, how many total hours of flight time in performance of flight navigator duties (or navigator trainee duties under supervision) are required to qualify for the Flight Navigator Certificate?
A.100 hours
B.200 hours
C.300 hours
D.500 hours
Explanation: 14 CFR § 63.55 requires an applicant to have logged at least 200 hours of flight time in the performance of flight navigator duties in aircraft, which may include up to 50 hours of supervised trainee time under a certificated flight navigator.
3An applicant for a flight navigator certificate is not a graduate of an approved flight navigator course. Under 14 CFR § 63.55(a)(1), what celestial position-fixing experience must the documentary evidence show?
A.Satisfactory determination of position in flight at least 25 times by night by celestial observation, and at least 25 times by day by celestial observation in conjunction with other aids
B.At least 50 hours of night flight time spent taking and plotting celestial observations
C.At least 75 hours of night flight time using pressure pattern navigation only
D.At least 100 hours of night flight time using radar and Loran systems
Explanation: 14 CFR § 63.55(a) offers two routes: graduation from an FAA-approved flight navigator course, or documentary evidence. The evidence route is counted in fixes, not hours: at least 25 in-flight position determinations by night by celestial observation, and at least 25 by day by celestial observation in conjunction with other aids, under § 63.55(a)(1). The hours figure lives in § 63.55(a)(2), which requires 200 hours of satisfactory flight navigation including celestial, radio, and dead reckoning.
4What is the recency of experience requirement for a certificated flight navigator serving on an air carrier aircraft operating under 14 CFR Part 121?
A.Must have logged at least 50 hours as a flight navigator within the preceding 12 calendar months, or passed a practical check
B.Must have completed 10 oceanic crossings within the preceding 90 days
C.Must have logged 25 celestial sights within the preceding 60 days
D.Must re-take the FAA FNX knowledge test every 24 calendar months
Explanation: Under 14 CFR Part 121 and Part 63 recency rules, a flight navigator must have served as a flight navigator for at least 50 hours within the preceding 12 calendar months, or satisfactorily completed a navigation competency check administered by an authorized check airman or FAA inspector.
5Pursuant to 14 CFR § 63.3, when must a certificated flight navigator carry their certificate?
A.In the flight navigator's personal possession or readily accessible in the aircraft when performing navigator duties
B.Filed permanently with the air carrier's chief pilot office at the main operations base
C.Only when flying outside the continental limits of the United States
D.Inside the aircraft's primary maintenance logbook binder
Explanation: 14 CFR § 63.3 stipulates that no person may act as a flight navigator unless that person has a valid flight navigator certificate in their personal possession or readily accessible in the aircraft while performing flight navigator duties.
6What is the maximum period of validity for a Temporary Flight Navigator Certificate issued to an applicant who has passed the practical test?
A.60 days
B.90 days
C.120 days
D.180 days
Explanation: Under 14 CFR § 63.17, a temporary certificate issued upon passing the practical test is valid for up to 120 days while the permanent certificate is being processed by the FAA Airman Certification Branch in Oklahoma City.
7If a certificated flight navigator changes their permanent address, within how many days must they notify the FAA Airman Certification Branch in writing?
A.14 days
B.30 days
C.60 days
D.90 days
Explanation: Under 14 CFR § 63.18, the holder of a flight navigator certificate who changes their permanent posting/mailing address must notify the FAA in writing within 30 days of the change to maintain certificate privileges.
8Under 14 CFR § 63.12, what is the consequence of a flight navigator's refusal to submit to a chemical test for alcohol or drugs requested by a law enforcement officer?
A.Mandatory re-examination on celestial navigation within 60 days
B.Grounds for denial of an application for any certificate or rating, or suspension/revocation of any existing certificate
C.A mandatory $5,000 fine paid directly to the FAA Administrator
D.A 30-day suspension of flight privileges without administrative appeal
Explanation: 14 CFR § 63.12 states that refusal to submit to an authorized test for alcohol or drug concentration is grounds for denial of any certificate or rating application, or suspension or revocation of any certificate issued under Part 63.
9What minimum class of FAA medical certificate is required for an airman to exercise the privileges of a Flight Navigator Certificate?
A.Third-Class Medical Certificate
B.Second-Class Medical Certificate
C.First-Class Medical Certificate
D.BasicMed Qualification
Explanation: Under 14 CFR § 63.3(a)(2), a flight navigator must hold at least a valid Second-Class Medical Certificate issued under 14 CFR Part 67 to exercise certificate privileges.
10Unless surrendered, suspended, or revoked, what is the duration of an FAA Flight Navigator Certificate?
A.Valid for 24 calendar months
B.Valid for 5 years from date of issuance
C.Issued without an expiration date (valid indefinitely)
D.Valid only as long as the holder maintains a First-Class Medical Certificate
Explanation: Under 14 CFR § 63.11, an FAA Flight Navigator Certificate is issued without an expiration date and remains valid indefinitely unless it is surrendered, suspended, or revoked.

About the FAA FNX Knowledge Test — Flight Navigator Exam

The FAA Flight Navigator Knowledge Test (FNX) evaluates candidate competency in celestial navigation, pressure pattern dead reckoning, high-altitude meteorology, 14 CFR Part 63 regulations, and advanced avionics systems.

Questions

80 scored questions

Time Limit

3 hours (180 minutes)

Passing Score

70%

Exam Fee

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

FAA FNX Knowledge Test — Flight Navigator Exam Content Outline

25%

14 CFR Part 63 Regulations

Rules governing Flight Navigator certification eligibility, logbook requirements, recency of experience, and operational duties.

30%

Celestial Navigation

Bubble sextant usage, index error, dip, refraction, LHA, GHA Aries/stars/sun/moon, Pub 249 sight reduction, intercept methodology, and Polaris.

25%

Dead Reckoning & Pressure Pattern Navigation

DR wind triangles, Bellamy Single Heading Drift equation, D-value analysis, radius of action (PNR), and equal time point (ETP) calculations.

20%

Electronic Navigation Systems & Meteorology

INS platform alignment and Schuler tuning, Doppler navigation radar, GPS RAIM integrity, jet streams, tropopause variations, and Clear Air Turbulence.

How to Pass the FAA FNX Knowledge Test — Flight Navigator Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 80 questions
  • Time limit: 3 hours (180 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 FNX Knowledge Test — Flight Navigator Study Tips from Top Performers

1Master sight reduction table procedures (Pub 249 / Pub 229) and practice calculating Local Hour Angle (LHA) and Intercept (a = Ho - Hc) rapidly.
2Memorize the Bellamy Single Heading Drift formula (vn = 21.47 * (D2 - D1) / (X * sin Lm)) and understand how D-value changes indicate cross-track drift.
3Review 14 CFR Part 63 requirements including minimum flight hours (200 hours), night celestial sights (50 hours), and certificate display rules.
4Practice radius of action (PNR) and equal time point (ETP) formulas with varying winds and fuel endurance limits.
5Understand INS Schuler tuning (84.4 min period) and GPS Receiver Autonomous Integrity Monitoring (RAIM) satellite requirements.

Frequently Asked Questions

What is the FAA Flight Navigator (FNX) Knowledge Test?

The FNX exam is a computer-based knowledge test required by the FAA under 14 CFR Part 63 for candidates applying for a Flight Navigator Certificate.

How many questions are on the official FNX exam and what is the passing score?

The official FAA FNX exam consists of 80 multiple-choice questions. Candidates must achieve a score of 70% or higher within the 3-hour time limit.

What topics carry the highest weight on the Flight Navigator test?

Celestial navigation (30%), 14 CFR Part 63 regulations (25%), and dead reckoning/pressure pattern navigation (25%) comprise 80% of the exam content.

How long is the test result valid?

An FAA knowledge test report is valid for 24 calendar months from the date of completion.

Does the FAA publish topic weightings for the FNX 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.