- ATP is the FAA's Airline Transport Pilot certificate; this site focuses on the Multiengine (ATM) knowledge test.
- The ATM has 130 total questions (125 scored, 5 unscored) with a 3-hour-30-minute limit and 70% passing score.
- PSI administers the test for a $175 fee plus tax, and results stay valid for 60 calendar months.
- Candidates need an ATP-CTP graduation certificate (30+ classroom hours, 10+ sim hours) and must be at least 18.
ATP Basics: The Certificate Behind the Question
When someone asks "what is a ATP," they're usually referring to the Airline Transport Pilot certificate - the highest level of pilot certification issued by the Federal Aviation Administration (FAA). It's the credential required to serve as pilot-in-command for scheduled airline operations, and it sits above the Commercial and Instrument ratings in the FAA's certification hierarchy. If you're looking for a broader definition, our companion pieces What Is ATP? and ATP Meaning cover the term from different angles, while What Does ATP Stand For? breaks down the acronym itself.
This site, however, is built specifically around one piece of that certification path: the Airline Transport Pilot Multiengine Airplane knowledge test, commonly abbreviated ATM. Earning the ATP certificate requires passing this written exam, completing an approved training program, and meeting flight-experience and age requirements set by the FAA. If you want the full eligibility picture before diving into study materials, read ATP Requirements 2026: Eligibility, Prerequisites & How to Qualify.
The ATM Knowledge Test Explained
The ATM exam is not a casual quiz - it's a structured, high-stakes knowledge test with fixed parameters set by the FAA. Here's exactly what candidates face:
| Exam Detail | Specification |
|---|---|
| Administering body | PSI (on behalf of FAA) |
| Total questions | 130 (125 scored + 5 unscored validation) |
| Time limit | 3 hours 30 minutes |
| Passing score | 70% |
| Fee | $175 plus applicable tax |
| Result validity | 60 calendar months |
The 5 unscored validation questions are mixed in with the 125 scored ones, and applicants can't tell which is which - so every question deserves full attention. This structure mirrors many other FAA knowledge tests, but the ATM's content is unique because it's built around airline-level, multiengine-turbine operations rather than single-engine private or commercial flying.
For a deeper breakdown of exactly what "passing" means numerically and how the scoring works, see ATP Passing Score 2026: Exactly What You Need to Pass. If you want data-driven context on how test-takers perform, check ATP Pass Rate 2026: What the Data Shows - the official 2025 figure was notably high, but that number alone doesn't tell you whether the exam will be easy for you personally.
Who Can Sit for the ATM and How to Register
Before you can even schedule the ATM, the FAA requires two gatekeeping items:
- Minimum age of 18 for the knowledge test itself.
- An ATP-CTP graduation certificate from an authorized Airline Transport Pilot Certification Training Program.
The ATP-CTP isn't optional paperwork - it's a substantive academic and simulator program. It includes at least 30 hours of classroom instruction covering aerodynamics, meteorology, automation, and leadership/professional development, plus a minimum of 10 hours in a qualified multiengine-turbine flight simulation training device. This training is specifically designed to prepare you for the transport-category concepts the ATM tests, so the classroom hours and the exam content are tightly linked.
Once you've completed the CTP and hold your graduation certificate, you register through PSI, pay the $175 fee plus tax, and schedule your test date. For a full cost breakdown that includes training, testing, and related expenses, see ATP Certification Cost 2026: Complete Pricing Breakdown.
Key Takeaway
You cannot walk into the ATM cold - the CTP graduation certificate is a hard prerequisite, so plan your classroom and simulator hours before you set a test date.
The Eight Domains You Must Master
The ATM's content isn't randomly assembled. It follows the eight Areas of Operation defined in FAA-S-ACS-11A (effective May 31, 2024), and every scored question maps to an ACS code. When your Airman Knowledge Test Report flags a weak area, it's referencing one of these domains directly.
Domain 1: Preflight Preparation
Covers weight and balance, performance planning, weather interpretation, and airworthiness requirements for multiengine-turbine aircraft.
- Expect scenario-based questions requiring calculation, not just recall.
Domain 2: Preflight Procedures
Focuses on systems checks, powerplant considerations, and crew coordination before departure.
- Know multiengine-specific system redundancies and failure indications.
Domain 3: Takeoffs and Landings
Tests knowledge of V-speeds, crosswind technique, and rejected takeoff decision points unique to turbine twins.
- Study the relationship between runway length, weight, and engine-out performance.
Domain 4: In-flight Maneuvers
Covers steep turns, engine-out procedures, and airplane control at various configurations.
- Focus on asymmetric thrust handling and Vmc awareness.
Domain 5: Stall Prevention
Emphasizes recognition and recovery, aligned with modern upset-prevention training philosophy.
- Understand angle-of-attack indicators rather than airspeed alone.
Domain 6: Instrument Procedures
Tests IFR clearances, approach procedures, and automation management in complex airspace.
- Review approach plate interpretation and holding pattern entries carefully.
Domain 7: Emergency Operations
Covers engine failures, system malfunctions, and abnormal procedure decision-making.
- Memorize the logic behind checklist prioritization, not just steps.
Domain 8: Postflight Procedures
Focuses on shutdown, securing the aircraft, and post-flight documentation requirements.
- Don't overlook this shorter domain - every scored question counts equally.
For a full walkthrough of each domain with weighting context and sample question types, read ATP Exam Domains 2026: Complete Guide to All 8 Content Areas.
What the Questions Actually Look Like
The ATM is a multiple-choice format, but don't mistake that for simplicity. Many questions present a short scenario - a weight figure, a temperature, a runway condition - and ask you to apply a formula or chart to reach the correct answer. Others test regulatory recall directly from 14 CFR Part 121 or Part 91 subparts relevant to transport-category operations. A smaller portion tests systems knowledge specific to multiengine-turbine airplanes, including engine-out performance and automation logic.
Because the exam pulls from all eight domains without warning which question belongs to which area, candidates often underestimate how broad the content really is until they sit a full-length practice exam. If you're wondering whether the difficulty matches its reputation, How Hard Is the ATP Exam? Complete Difficulty Guide 2026 walks through what actually makes it demanding - mostly the sheer breadth of Part 121-level knowledge rather than any single trick topic.
Who Hires ATP Holders
The ATP certificate exists because regional and major airlines are legally required to staff their flight decks with ATP-certificated pilots. Beyond the majors, ATP holders are sought by:
- Regional airlines building first-officer and captain pipelines
- Cargo carriers operating turbine multiengine fleets
- Fractional ownership and charter operators flying under Part 135 with ATP-level requirements
- Corporate flight departments operating larger turbine aircraft
Passing the ATM is one checkpoint in a much longer career trajectory. If you're evaluating whether the time and cost investment pays off, Is the ATP Certification Worth It? Complete ROI Analysis 2026 and ATP Salary Guide 2026: Complete Earnings Analysis lay out the career-side considerations. For a sense of the roles the certificate actually opens up, see ATP Jobs.
Building a Domain-Focused Prep Plan
Generic study advice - flashcards, spaced repetition, timed drills - only helps if it's pointed at the right domains at the right time. Because Domains 1, 3, and 6 (Preflight Preparation, Takeoffs and Landings, and Instrument Procedures) tend to carry the heaviest calculation and procedural load, it makes sense to schedule them earlier in your prep window when your energy for dense material is highest.
Foundational Domains
- Preflight Preparation performance charts and weight/balance math
- Preflight Procedures systems review
Flight Handling Domains
- Takeoffs and Landings V-speed scenarios
- In-flight Maneuvers and Stall Prevention recovery logic
Procedural Domains
- Instrument Procedures approach and holding review
- Emergency Operations checklist prioritization
Consolidation
- Postflight Procedures review
- Full-length timed practice tests across all eight domains
Use your practice-test performance reports to identify which domain codes keep appearing as weak spots, then loop back into that specific material rather than re-studying everything equally. For a more detailed week-by-week methodology, see ATP Study Guide 2026: How to Pass on Your First Attempt, and keep a condensed reference handy with ATP Cheat Sheet 2026: One-Page Review of Must-Know Facts. When you're ready to test your readiness under real exam conditions, run a full simulation on the main practice test platform.
Key Takeaway
Don't study all eight domains with equal time - front-load the calculation-heavy domains and save Postflight Procedures for a quick final review pass.
Scheduling and Result Logistics
Once you've completed your CTP training, you'll want to lock in a test date that gives you enough runway to prepare without letting your training momentum fade. Because your ATM result stays valid for 60 calendar months, there's no need to rush into a test date before you're ready - but you also don't want to wait so long after CTP completion that the material grows stale. Check ATP Exam Dates 2026: Testing Windows, Deadlines & Scheduling for guidance on choosing a date that aligns with your training timeline and any airline hiring deadlines you're targeting.
After you pass, your Airman Knowledge Test Report will list any ACS codes tied to missed questions - even on a passing score. It's worth reviewing these codes against the eight domains above, since they'll resurface in your practical exam preparation later. Many candidates use a practice test platform to simulate this same domain-by-domain feedback loop before sitting the real ATM, which helps surface weak areas while there's still time to fix them.
Frequently Asked Questions
The ATP certificate is the overall FAA credential authorizing airline-level pilot-in-command duties. The ATM is the specific multiengine knowledge test candidates must pass as one requirement toward earning that certificate.
The ATM contains 130 total questions - 125 scored and 5 unscored validation questions - with a time limit of 3 hours and 30 minutes.
You must be at least 18 years old and hold a graduation certificate from an authorized ATP-CTP, which includes at least 30 hours of classroom instruction and 10 hours in a qualified multiengine-turbine simulator.
PSI charges $175 plus applicable tax to administer the ATM knowledge test.
A passing ATM result is valid for 60 calendar months from the date you take the test.