AMES logo
Focused certification exam prep
Start practice

What Is AMES Certification?

TL;DR
  • AMES means Airplane - Multiengine Sea: an FAA class rating, not a standalone multiple-choice certification exam.
  • You earn it through an oral and flight practical test with an FAA evaluator, commonly a designated pilot examiner.
  • Which tasks you must demonstrate depends on your certificate level and ratings already held, such as AMEL, ASEL or ASES.
  • FAA-H-8083-23 is the core preparation source; its Multiengine Seaplanes subsection on p. 5-4 covers asymmetrical thrust.

What the AMES Rating Actually Is

AMES is the FAA's abbreviation for Airplane - Multiengine Sea. It is a class rating added to a pilot certificate, authorizing the holder to act as pilot in command of multiengine airplanes operated on water. If you searched for "AMES certification" expecting a vendor credential with a registration portal and a score report, the first thing to understand is that this is a federal aviation rating issued by the Federal Aviation Administration (FAA).

The rating sits at the intersection of two skill sets that most pilots develop separately: handling an airplane with more than one engine, and operating from water instead of pavement. Multiengine seaplanes are a narrow corner of general aviation, which is part of why training for this rating is typically offered at specialized seaplane bases and a limited number of flight schools rather than at every local airport.

If you want a plain-language companion to this article, the site also covers the basics in What Is AMES?, What Does AMES Stand For? and AMES Certification. This guide goes further into how the rating is earned and assessed.

Identity check: Other credentials in other industries share the acronym "AMES." On this site, AMES refers only to the FAA Multi-engine Seaplane Rating. Nothing here describes any other certification, and fees, dates or pass figures from unrelated credentials do not apply.

Why It Is a Checkride, Not a Written Test

This is the single most common point of confusion. Many certification pages are built around a seat-time appointment at a testing center, a fixed number of questions, a timer and a percentage cut score. AMES does not work that way.

The assessment is a practical test: an oral/ground portion and a flight portion, conducted by an authorized FAA evaluator, commonly a designated pilot examiner. There is no distinct AMES knowledge-test appointment with a computer-testing vendor. The reviewed FAA sources do not publish a fixed AMES question count, a scored/unscored split, a universal time limit, a percentage pass mark or an AMES-specific pass rate, so any site quoting those numbers for this rating is guessing.

FeatureTypical standardized examAMES practical test
FormatMultiple-choice at a testing centerOral/ground evaluation plus flight evaluation
ExaminerComputer-scoredAuthorized FAA evaluator, commonly a designated pilot examiner
ScoringPercentage or scaled scoreSatisfactory performance of the applicable tasks
FailingRetake after waiting periodFailing an area fails the practical test under 14 CFR 61.43
Reference standardPublished exam blueprintAirman Certification Standards (ACS) by certificate level

Passing means performing the applicable tasks to the standard, demonstrating aircraft mastery and proficiency, and showing sound judgment. That is why the questions "how hard is it" and "what is the passing score" do not have tidy numeric answers. For a frank take on difficulty, see How Hard Is the AMES Exam? and AMES Passing Score; for why no pass-rate figure should be trusted, see AMES Pass Rate.

Who Pursues It and What You Need First

AMES is an additional class rating. You add it to a pilot certificate you already hold. Under 14 CFR 61.63(c), adding a class rating below the ATP level requires an instructor's endorsement of your knowledge and proficiency, followed by a practical test. Notably, the regulation does not prescribe a fixed minimum number of additional training hours for adding this airplane class, so how much instruction you need is driven by your proficiency and your instructor's judgment.

The certificate level matters because the FAA publishes separate standards:

  • Private pilot level: Airplane Category ACS, FAA-S-ACS-6C.
  • Commercial pilot level: Airplane Category ACS, FAA-S-ACS-7B.
  • ATP level: governed separately by FAA-S-ACS-11A and 14 CFR 61.165. Do not assume private or commercial task credit carries over to ATP.

Schools sometimes publish their own entry requirements, and these vary. One provider's checklist, for example, has been seen to say private-or-higher while its FAQ points toward commercial. Treat school statements as school policy, not FAA law, and confirm with the specific operator. For a fuller walkthrough of prerequisites, see AMES Requirements.

Knowledge-test waiver caveat: The waiver of the additional knowledge test is conditional on already holding a listed aircraft rating at the relevant certificate level. It is not a blanket rule for every initial pilot-certificate or ATP applicant, so confirm your own situation with your instructor or examiner.

The Seven-Part Preparation Index

Because no single level-independent AMES blueprint exists, this site organizes preparation around a seven-part index drawn from the FAA's seaplane handbook, FAA-H-8083-23, Seaplane, Skiplane, and Float/Ski Equipped Helicopter Operations Handbook (2004 edition, still linked by the FAA). To be clear: this is an unweighted preparation index, not seven official exam domains, and not an exhaustive checkride syllabus. No percentage weights are published. It uses handbook chapters 1-6 and 8; chapter 7 (skiplanes) and chapter 9 (helicopters) are deliberately left out.

Domain 1: Rules, Regulations, and Aids for Navigation

Water has its own right-of-way and navigation conventions, and a seaplane pilot is expected to know them cold.

  • Water right-of-way and maritime rules of the road
  • Marine navigation aids such as buoys and markers
  • How seaplane operations interact with other vessels

Domain 2: Principles of Seaplanes

Floats change how an airplane behaves in the air and on the water.

  • Float configuration and hydrodynamics
  • Idling/plowing/step attitudes and why they matter
  • High thrust lines and their effect on handling

Domain 3: Water Characteristics and Seaplane Base Operations

The runway is alive. Wind, waves and current shape every decision.

  • Waves, currents and water-base operations
  • Anchoring, mooring, docking, beaching and ramping
  • Salt-water care for the airframe and floats

Domain 4: Seaplane Operations - Preflight and Takeoffs

Preparation begins before the engines start.

  • Float preflight, including checking compartments for water
  • Engine start, taxiing and sailing
  • Porpoising and skipping, and how to correct them
  • Normal, crosswind, glassy-water, rough-water and confined-area takeoffs

Domain 5: Performance

Water takeoffs consume performance differently than hard-surface runs.

  • Takeoff, climb, cruise and landing performance
  • The Multiengine Seaplanes subsection (p. 5-4), addressing engine failure and asymmetrical thrust
  • Always working from the aircraft flight manual and its limitations

Domain 6: Seaplane Operations - Landings

Landing on water starts with reading the surface.

  • Landing-area reconnaissance and go-arounds
  • Normal, crosswind, downwind, glassy-water, rough-water and confined-area landings
  • Post-landing procedures

Domain 7: Emergency Open Sea Operations

Low-probability, high-consequence topics that examiners expect you to discuss thoughtfully.

  • Open-sea swell evaluation
  • Night and emergency landing considerations
  • Submerged-aircraft escape

For a deeper tour of how these areas fit together, see AMES Exam Domains: Complete Guide to All 7 Content Areas.

Key Takeaway

Do not substitute AMEL-only or single-engine-seaplane material for the real thing. The multiengine-on-water combination, especially engine failure with asymmetrical thrust over a water surface, is the point of this rating. Read the Multiengine Seaplanes subsection directly and discuss it with your instructor.

What the Practical Test Actually Evaluates

The private and commercial airplane ACS documents each contain an AMES additional-rating task table (printed on p. 73 of each). The AMES-tagged objectives include:

  • Water and Seaplane Characteristics, Seaplane Bases, Maritime Rules, and Aids to Marine Navigation
  • Taxiing and Sailing
  • Confined Area Takeoff and Maximum Performance Climb
  • Confined Area Approach and Landing
  • Glassy Water Takeoff and Climb
  • Glassy Water Approach and Landing
  • Rough Water Takeoff and Climb
  • Rough Water Approach and Landing
  • Seaplane Post-Landing Procedures

Depending on which table applies to you, additional required work can include performance and limitations, systems, preflight, normal takeoff and landing, steep turns, slow flight and stalls, simulated engine failures, one-engine-inoperative maneuvering and a VMC demonstration. Notice how the water-surface tasks (glassy, rough, confined) mirror the preparation index above. If you can talk through why a glassy-water landing demands a stabilized, power-on descent at a controlled attitude and sink rate, you are already thinking the way the oral portion expects.

Why the oral matters: The oral/ground portion is where an evaluator confirms you understand why procedures work: how floats behave at different speeds, how to evaluate a landing area, and what happens to controllability when an engine quits on a multiengine seaplane. Memorized phrases without understanding tend to show.

How Existing Ratings Change Your Task List

This is where generalized advice falls apart. The ACS tables make required tasks conditional on the ratings you already hold. An existing AMEL (Airplane Multiengine Land) rating receives different task credit than an ASEL (single-engine land) or ASES (single-engine sea) rating, because each one already demonstrates different parts of the skill set.

If you already holdWhat it generally means for AMES preparation
AMELMultiengine skills are already demonstrated; the emphasis shifts toward water operations. Check the ACS table for exact credit.
ASESWater skills are already demonstrated; multiengine tasks such as engine-out work carry more weight in your test.
ASELNeither the multiengine nor the water component is already covered, so expect a broader task list.

Two specific provisions are worth knowing for private and commercial applicants. If you already hold AMEL without a center-thrust limitation, you need not supply a seaplane with propeller-feathering capability. And the instrument-only Tasks X.C and X.D do not apply if you have no instrument rating or have not previously demonstrated multiengine instrument proficiency. Always have your instructor map your exact certificate and ratings to the correct ACS table before you book the checkride.

What Training Packages Cost

There is no nationwide FAA fee schedule for AMES training or checkride packages, and no member/non-member tariff, because the cost is set by individual schools and examiners. What exists are local provider packages, and the two below are examples rather than national averages or FAA minimums:

Provider exampleDisplayed pricing
Sebring AviationUSD 3,300 for five flight hours plus ground training, excluding the checkride; approximately USD 5,000 total including it, plus applicable taxes; USD 495 per additional dual hour
WaterWingsUSD 5,000 including instruction, fuel and checkride

Treat those hour counts as a package structure, not a regulatory timer. Your own proficiency, the weather and aircraft availability can add hours, and the per-hour rate is where overruns accumulate. Compare what each package includes (fuel, examiner fee, ground instruction, taxes) before comparing headline prices. For a fuller breakdown of cost components, read AMES Certification Cost.

Keeping the Privileges After You Earn Them

Unlike credentials that require continuing-education credits and periodic renewal, pilot certificates normally have no expiration date under 14 CFR 61.19, subject to suspension, revocation, surrender and any applicable limitations. AMES is not a biennial renewal credential.

What does lapse is your ability to exercise privileges legally:

  • Flight review: generally every 24 calendar months under 14 CFR 61.56, with practical-test credit possible.
  • Passenger-carrying currency: generally three takeoffs and landings within 90 days in the same category and class (and type, where applicable) under 14 CFR 61.57, with additional night conditions and exceptions.
  • Medical qualification: as applicable to your operation.

In practice, the class-specific currency requirement matters here. If you want to carry passengers in a multiengine seaplane, your recent experience must be in that category and class, so time in a land airplane does not keep you current on floats. Aircraft flight-manual limitations and checklists always govern the actual operation.

Jobs, Pay, and the Honest Value Question

No AMES-specific salary premium has been verified. The Bureau of Labor Statistics publishes occupational data for airline and commercial pilots generally, but that data describes the occupation, not earnings caused by this rating, so it would be misleading to attach a dollar figure to AMES. If you see one, ask where it came from.

The honest framing is that AMES is a capability that unlocks specific kinds of flying rather than a guaranteed income bump. Seaplane operations tend to be concentrated in water-rich regions and seasonal tourism and utility flying, which means opportunities are geographically and seasonally uneven. For some pilots the value is career access to a niche employer; for others it is the sheer capability of flying a twin from a lake. For perspective on both sides, see AMES Jobs, AMES Salary Guide and Is the AMES Certification Worth It?.

Sequencing Your Preparation

You do not need an elaborate system, but the order of topics matters because the later domains build on the earlier ones. The plan below is a suggestion, not a requirement. Adjust it to your schedule and your instructor's syllabus.

Week 1

Rules and Principles (Domains 1 and 2)

  • Learn marine right-of-way and navigation aids first; they are pure memory-plus-judgment content.
  • Study float hydrodynamics and step attitudes so the flying lessons make sense.
Week 2

Water and Base Operations (Domain 3)

  • Study wind, wave and current effects, then docking, mooring and beaching procedures.
Week 3

Takeoffs, Performance and Landings (Domains 4, 5 and 6)

  • Pair each ground topic with a flight lesson: glassy, rough and confined-area work.
  • Spend extra time on engine failure and asymmetrical thrust (handbook p. 5-4).
Week 4

Emergencies and Checkride Rehearsal (Domain 7)

  • Rehearse open-sea swell evaluation and submerged-aircraft escape aloud, as you would for the oral.
  • Run a full mock oral against your applicable ACS task table.

For a more structured study approach, see the AMES Study Guide, and keep the AMES Cheat Sheet handy for last-minute review. If you want to test your recall of seaplane concepts, the AMES practice test can help you identify weak spots before your oral. Scheduling the checkride itself depends on examiner availability rather than fixed testing windows; AMES Exam Dates explains how to approach it.

Frequently Asked Questions

Is AMES a written exam?

No. AMES is an FAA class rating assessed through an oral/ground and flight practical test with an authorized evaluator, commonly a designated pilot examiner. There is no distinct AMES knowledge-test appointment and no verified fixed question count or percentage pass mark.

What does AMES stand for?

In FAA Airman Certification Standards usage, AMES means Airplane - Multiengine Sea. It identifies the multiengine seaplane class rating. See What Does AMES Stand For? for more.

How many training hours do I need?

The regulation for adding a class rating below ATP (14 CFR 61.63(c)) requires an instructor endorsement and a practical test but does not prescribe a fixed additional hour minimum for this class. Schools advertise packages with a set number of hours, but those are local package structures, not FAA minimums.

Does the rating expire?

The pilot certificate itself normally has no expiration date under 14 CFR 61.19. Your privileges depend on staying current: flight review generally every 24 calendar months, recent-experience rules for carrying passengers, and an appropriate medical where required.

Can I use my private or commercial task credit toward an ATP-level AMES?

No, do not assume that. ATP-level AMES is governed separately by FAA-S-ACS-11A and 14 CFR 61.165. Confirm the applicable standard with your instructor or examiner before planning your training.

Ready to pass your AMES exam?

Put this into practice with free AMES questions across every exam domain.