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Federal Aviation Administration (FAA)

FAA Commercial Pilot Helicopter (CRH) knowledge test — also preparing for Commercial Pilot Helicopter Canadian Conversion (CCH)

The written test for your commercial helicopter certificate — commercial rules, rotor aerodynamics, performance and loading, emergencies and weather, at the depth a working helicopter pilot needs.

QuestionsCRH: 100 multiple-choice questions; CCH: 40
TimeCRH: 2 hours 30 minutes — about 1 minute 30 seconds per question; CCH: 2 hours
Passing70% (70 of 100 on CRH) — your score report lists the ACS codes of any topics you missed
FormatThree answer choices (A, B, C), one best answer; performance, loading, weather and chart figures from the FAA-CT-8080-1E testing supplement and embedded images
WhereOn computer at an FAA-authorized PSI test center — about $175 at PSI (confirm when you book); remote testing isn't offered
EligibilityMinimum age 16 (18 for CCH); FTN from IACRA and photo ID; CRH needs an instructor endorsement or pilot school graduation certificate — CCH needs none
Validity24 calendar months — take your commercial helicopter practical test within that window

About the exam

A commercial pilot certificate with a rotorcraft category, helicopter class rating lets you fly helicopters for compensation or hire — tours, utility work, flight instruction once you add a CFI, and the path to Part 135 and air ambulance jobs. The Commercial Pilot Helicopter (CRH) knowledge test is the written test you pass before the commercial helicopter checkride; the same bank also prepares you for the Commercial Pilot Helicopter Canadian Conversion test (CCH) for Transport Canada licence holders. QuizMe does not yet cover the sport-pilot helicopter tests (SHF and IHF).

CRH has 100 multiple-choice questions in 2 hours 30 minutes; CCH has 40 questions in 2 hours. Every question has three answer choices, and you need 70% to pass. You test on computer at a PSI test center with a photo ID and an FAA Tracking Number (FTN) from IACRA; minimum testing age is 16 for CRH and 18 for CCH (the commercial certificate itself requires age 18). CRH needs an endorsement from an authorized instructor or a pilot school graduation certificate; CCH needs no endorsement. Performance charts, loading tables, weather products and chart excerpts come from the FAA commercial testing supplement (FAA-CT-8080-1E) or embedded images. A passing result is valid for 24 calendar months. If you already hold a commercial certificate with an airplane or other category rating, adding a helicopter rating needs no additional knowledge test (61.63(b)).

Our practice covers every area with original questions mapped to the Commercial Helicopter ACS, with step-by-step worked solutions for every calculation — density altitude, hover performance in and out of ground effect, longitudinal and lateral CG, weight shift, wind triangle, fuel and time. Add flashcards for commercial regulations, helicopter limits and weather codes, worked case walkthroughs of performance planning and emergency decisions, illustrated guides to rotor systems and the height-velocity diagram, and timed practice tests at the real length — 100 questions in 2 hours 30 minutes — with a score.

How we track your progress

Every blueprint domain moves through five levels as you study:

  1. Not startedNo questions answered in this domain yet.
  2. Getting startedFirst questions answered — not enough yet to judge.
  3. DevelopingAt least 5 answered and 50% or better on your recent questions.
  4. ProficientAt least 15 answered and 70% or better on your recent questions.
  5. Exam readyAt least 25 answered, 80% or better recently, and holding up on hard questions.

The exam blueprint

FAA-S-ACS-16, Commercial Pilot for Rotorcraft Category Helicopter Rating ACS (November 2023; effective May 31, 2024) — Commercial privileges and regulations, helicopter aerodynamics, systems, performance and weight & balance, emergencies, helicopter operations, weather, cross-country planning and airspace, and human factors — one bank for CRH and CCH. Domain weights are QuizMe estimates — the FAA does not publish them. Tap a domain to see its topics.

1 Commercial Privileges and Regulations about 15% (est.) of the exam
Commercial helicopter privileges and limitations (61.133)Commercial aeronautical experience (61.129(c))Holding out, Part 119 exceptions and Part 91 commercial operationsHelicopter-specific Part 91 rules: altitudes, SVFR and fuelInspections and maintenance for aircraft operated for hirePart 133 external load and Part 136 air tour basicsMedical classes for commercial flyingNTSB 830 reporting and recordkeeping

50 practice questions in this domain so far

2 Helicopter Aerodynamics about 15% (est.) of the exam
Lift, rotor disk and the total aerodynamic forceTranslating tendency, ground effect and translational liftGyroscopic precession, dissymmetry of lift and blade flappingConing, Coriolis effect and blade lead-lagTorque, antitorque systems and loss of tail rotor effectivenessRetreating blade stall and high-speed limitsAutorotation aerodynamics: driven, driving and stall regionsLoad factor, turns and low-G

60 practice questions in this domain so far

3 Helicopter Systems and Instruments about 10% (est.) of the exam
Main rotor systems: fully articulated, semirigid and rigidEngines: reciprocating and turboshaft, governors and correlatorsTransmission, freewheeling unit and clutchFuel, electrical and hydraulic systemsFlight controls: collective, cyclic, pedals and trimInstruments: dual tachometer, manifold pressure and torqueCarburetor icing and induction systemsStability augmentation and autopilot systems

50 practice questions in this domain so far

4 Performance, Limitations and Weight & Balance about 16% (est.) of the exam
Density altitude and its effects on helicopter performanceHover performance charts: IGE and OGEHeight-velocity diagramWeight and balance: longitudinal and lateral CGWeight shift and adding or removing loadTakeoff, climb and cruise performance chartsWind, temperature and performance planningPower required versus power available and VY

60 practice questions in this domain so far

5 Emergencies and Hazards about 10% (est.) of the exam
Engine failure and autorotation proceduresDynamic rolloverSettling with power (vortex ring state)Ground resonanceLow rotor RPM and blade stallMast bumping and low-G situationsTail rotor failures and LTE recoveryFires, chip lights and system malfunctions

50 practice questions in this domain so far

6 Helicopter Operations about 8% (est.) of the exam
Hovering, hover taxi, air taxi and surface taxiNormal, maximum-performance and running takeoffsApproaches: normal, steep, shallow and running landingsConfined area, pinnacle and slope operationsHeliport markings, lighting and helicopter traffic patternsRotor downwash, wake turbulence and operating near othersNight operations and inadvertent IMCWire strikes, obstacles and reconnaissance

60 practice questions in this domain so far

7 Weather Information about 14% (est.) of the exam
METARs, TAFs and PIREPsAIRMETs, SIGMETs and convective SIGMETsWinds and temperatures aloft, prog charts and GFAAtmospheric stability, lapse rates and frontsThunderstorms and wind shearStructural icing and frostMountain wave and clear air turbulenceFog, low ceilings and density altitude

51 practice questions in this domain so far

8 Cross-Country Planning and Airspace about 7% (est.) of the exam
Navigation computations with the E6BAirspace entry requirements and VFR weather minimumsSpecial use airspace, TFRs and SFRAsVOR and GPS navigationSectional chart interpretationFuel, time and distance planning

21 practice questions in this domain so far

9 Human Factors about 5% (est.) of the exam
Types of hypoxia and time of useful consciousnessSpatial disorientation and visual illusionsAlcohol, drugs and fitness for flightAeronautical decision-making and hazardous attitudesCrew resource and single-pilot resource managementRisk management and fatigue

17 practice questions in this domain so far

What you get when you access this exam

Free with your QuizMe account.

Questions built on the ACS

Every question is original and tagged to a Commercial Helicopter ACS area — three choices like the real test, with hover and height-velocity charts, loading tables, sectional excerpts and weather reports described in text.

Hints and worked solutions

Reveal the rule, reference or formula behind the question when you're stuck. Every answer has the full rationale, and every calculation is solved step by step.

Adaptive practice

Questions steer toward your weakest areas, weighted like the real test, and get harder as you get stronger.

Timed practice tests

Full-length tests at the real pace — 100 questions in 2 hours 30 minutes — with a pacing indicator, full review and a percent score against the 70% pass mark.

Flashcards, walkthroughs and guides

Flashcards for commercial regulations, helicopter limits, rotor hazards and weather codes, worked case walkthroughs that reason through harder questions step by step, and interactive illustrated guides you explore hotspot by hotspot.

Progress in every area

Each area moves from Not started to Exam ready, so you know exactly what to study next.

Test at home or at a center

CRH and CCH are scheduled and taken through PSI, the FAA's knowledge-testing provider. Get your FAA Tracking Number (FTN) in IACRA and your instructor's endorsement (not needed for CCH), then choose a PSI test center and time. Remote testing is not offered for FAA airman knowledge tests.

At a PSI test center

  • Book through PSI's FAA scheduling site; the fee is paid to PSI, not the FAA — about $175 at PSI (confirm when you book).
  • Bring a current government-issued photo ID that meets FAA identification rules, and your FAA Tracking Number (FTN).
  • The center gives you the FAA-CT-8080-1E commercial testing supplement with the performance, loading, weather and chart figures; some questions show images on screen.
  • You may use an FAA-approved flight computer (E6B) and calculator under the test center's rules; PSI's testing system also includes an on-screen E6B.

Before you book

  • Pick the right test: CRH for a commercial helicopter certificate, CCH if you're converting a Transport Canada commercial licence.
  • The testing matrix accepts an endorsement from an authorized instructor or a graduation certificate from an FAA-certificated pilot school as the authorization for a first attempt. CCH needs no endorsement.
  • Already a commercial pilot with an airplane or other category rating? Adding a helicopter rating needs no additional knowledge test (61.63(b)) — confirm with your instructor.
  • If you retake after a failure, bring the failed test report and an endorsement from an authorized instructor who gave you the additional training.

Exam-day game plan

How to walk in ready — and how to pace 100 questions in 2 hours 30 minutes.

Pacing checkpoints

Our timed test uses the real length and time — 100 questions in 2 hours 30 minutes, the CRH length — as one block of single-answer, three-choice questions; CCH is shorter. Figures that the real test shows from the FAA-CT-8080-1E testing supplement or as embedded images are reproduced as described text, tables or simple diagrams — not the official FAA charts.

25questions0:38
50questions1:15
75questions1:52
100questions2:30

The week before

  • Take one full-length timed practice test 4–7 days out, then shorter sets and rest.
  • Drill commercial privileges and limits — what counts as holding out, when Part 91 applies and when an operator certificate is needed.
  • Rehearse chart work: hover ceilings IGE and OGE, the height-velocity diagram, and CG after loading changes.
  • Confirm your PSI appointment, your endorsement (or graduation certificate), your FTN, your ID and the flight computer and calculator you'll bring.

During the test

  • Pace yourself at about 1 minute 30 seconds a question — at 100 questions, don't let one chart eat five minutes.
  • Read for helicopter-specific rules — fuel reserves, Class G minimums and minimum altitudes differ from airplanes.
  • For performance and loading questions, write down the inputs and units before you read the chart.
  • Watch for EXCEPT and NOT — they flip what you're looking for.
  • Mark hard questions, answer every one and come back if time allows — there's no penalty for guessing.

Keep your head

  • A few nerves sharpen focus. If you freeze, take three slow breaths and reread the question.
  • With three choices, ruling out one wrong answer leaves you a coin flip at worst.
  • You need 70 of 100 — a few long chart problems won't sink you.

After you test

  • You get your Airman Knowledge Test Report at the test center; it shows your score and the ACS codes of any knowledge areas you missed, and your instructor reviews them with you before the checkride.
  • A passing result is valid for 24 calendar months — complete the commercial helicopter practical test within that window or retake the knowledge test.
  • Next comes the commercial helicopter practical test under FAA-S-ACS-16 — an oral on commercial knowledge plus a flight test held to tighter tolerances, including autorotations, confined-area and pinnacle work and special operations.

Official sources and further reading

Ready to start?

419 questions and scenarios across the blueprint — and growing.

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QuizMe is not affiliated with or endorsed by the FAA or PSI. All questions are original. Details are summarized from FAA sources (ACS, testing matrix, 14 CFR); rules and policies change — always confirm at faa.gov. Estimated scores are rough guides.