ACS Secrets Revealed: What Experts Don’t Want You to Know About the New Multi-Engine Standards

Meta Description: Master the new Multi-Engine Airman Certification Standards (ACS). Learn how the regulatory shift from PTS to ACS affects your multi-engine rating and how to use the "Blueprint" to ace your checkride with a retired DPE’s insider tips.

Listen, if you’re prepping for your multi-engine rating, you’ve probably heard the rumors. People are talking about "the big switch" from the Practical Test Standards (PTS) to the Airman Certification Standards (ACS). Some guys are acting like the sky is falling, while others think it’s just a name change.

I’ve spent over 30 years in this industry, including time as a retired Designated Pilot Examiner (DPE). I’ve seen thousands of pilots walk into an oral exam. I’ve seen who succeeds and who fumbles when the pressure is on.

Here’s the truth: the transition to the ACS isn't just a formatting update. It’s a total shift in how you’re evaluated. But if you know how to read the "blueprint," the ACS is actually the best tool you’ve ever been given to guarantee a pass.

In this post, I’m going to pull back the curtain on how the FAA’s new standards work and how you can use them to reverse-engineer your checkride success.

The Big Shift: From "Guidance" to "Law"

For decades, the PTS was considered "guidance." It was the rulebook, sure, but it didn't have the teeth of a formal regulation. On May 31, 2024, that changed forever.

The FAA officially incorporated the ACS into the federal regulations (14 CFR Part 61). This means the Airman Certification Standard is now regulatory. For you, the applicant, this is actually a massive advantage.

Why? Because a DPE can no longer "go rogue." Under the old system, you might get an examiner who had a "pet peeve" or a favorite obscure question that wasn't strictly in the book. Now, if it’s not in the ACS, the DPE cannot legally test you on it. It is the absolute boundary of the checkride.

The "Blueprint" Concept: How to Predict the Exam

Think of the ACS as the answer key provided by the teacher before the final exam. Most pilots just skim it, but the pros use it to build their entire study plan.

The ACS is broken down into specific "Tasks." Each task contains three distinct sections:

1. Knowledge: What you need to know (the "head" work).

2. Risk Management: What you need to identify, assess, and mitigate (the "judgment" work).

3. Skills: What you need to do (the "hands" work).

As an examiner, I was required to pick at least one knowledge element, at least one risk management element, and all the skill elements for every task. If you want to ace your multi-engine flight training, you should be able to look at any task: like "Engine Failure During Takeoff Before Vmc": and tell me exactly which risk factors you’re going to discuss before you even touch the throttles.

The Third Pillar: Why Risk Management (RM) is the New King

In the old PTS days, you just had to stay within +/- 100 feet and not crash. Today, "flying the numbers" isn't enough. The ACS has elevated Risk Management to be just as important as your stick-and-rudder skills.

I’ve seen plenty of "hot-shot" pilots who could fly a perfect steep turn but failed their multi-engine rating because they couldn't explain the risks of a crosswind on a single-engine approach.

To ace the RM section, stop thinking about "right answers" and start thinking about "decision-making processes." When the examiner asks about Vmc, don't just recite the definition. Tell them how you’ll mitigate the risk of a loss of control if you’re heavy, at a high density altitude, and lose the critical engine. That is what a "Pro Pilot Authority" sounds like.

Multi-Engine Specifics: Vmc, Vyse, and Asymmetric Thrust

The ACS for the multi engine rating places a heavy emphasis on your understanding of performance and limitations. Specifically, you need to be a master of the "Blue Line."

When we talk about Vyse (Best Rate of Climb Single-Engine) and Vmc (Minimum Controllable Airspeed), the ACS expects more than rote memorization. You need to understand how asymmetric thrust affects the aerodynamics of the airframe.

• Vmc: The ACS requires you to identify the factors that affect Vmc. If you can’t explain why a forward Center of Gravity (CG) lowers your Vmc, you aren't ready for the checkride.

• Vyse: You need to know exactly what your aircraft will (and won’t) do on one engine. In accelerated flight training, we focus on the "Identify, Verify, Feather" flow so it becomes second nature.

The ACS isn't looking for a test-pilot level of engineering knowledge, but it is looking for a "Commercial Pilot" level of operational safety. Can you maintain directional control while identifying a failed engine? That’s the "Skill." Can you explain why the airplane is yawing toward the dead engine? That’s the "Knowledge."

Reverse-Engineering Your Checkride Prep

If I were sitting in the cockpit with you today, here is how I would tell you to prepare using the ACS:

1. Print the ACS: Don't just look at it on your iPad. Highlight it.

2. Audit Your Instructor: During your multi-engine flight training, ask your CFI, "Which ACS Risk Management element are we focusing on in this engine-out drill?"

3. Self-Grade: After every flight, open the ACS. Did you stay within the tolerances for altitude, heading, and airspeed? If not, you haven't "passed" that lesson yet.

4. Use Flashcards: We’ve developed multi-engine checkride flashcards specifically mapped to these standards to take the guesswork out of your studying.

Why Accelerated Training is the "Secret Weapon"

One of the biggest risks pilots face is "learning decay." If you take one flight lesson a week, by the time you get to your checkride, you’ve forgotten half of what you learned in the first week.

This is why we advocate for accelerated flight training. By immersing yourself in the ACS standards over a few intensive days, you keep the knowledge fresh and the skills sharp. It’s the difference between struggling to remember a checklist and having it flow naturally because you’ve done it 50 times in the last 48 hours.

When you show up to a checkride with an "Accelerated" mindset, the Designated Pilot Examiner notices. You look prepared, you act prepared, and you speak the language of the ACS.

Final Thoughts: The ACS is Your Friend

The FAA didn't create the ACS to make your life harder; they created it to make the standards clearer. As a retired DPE, I can tell you that the most relaxing checkrides I ever gave were the ones where the applicant clearly knew the ACS better than I did.

Don't let the technical jargon intimidate you. Use the ACS as your roadmap. If you master the three pillars: Knowledge, Risk Management, and Skill: you won't just pass your checkride; you'll become a safer, more professional multi-engine pilot.

Ready to level up? Whether you’re looking for a multi-engine add-on or aiming for your MEI, we’ve built our programs to mirror the exact standards the FAA expects. Let’s get you in the cockpit and get that rating.

---

Ready to ace your checkride? Check out our Multi-Engine Training Programs and start your journey toward the airlines today.