How hard is the CFII checkride compared to the instrument rating?

It's a different animal. The flying is easier in raw skill terms — you've already passed an instrument ride and likely have hundreds of hours of IFR experience by now. But the bar for explanation, regulatory knowledge, and right-seat teaching is dramatically higher. Most applicants underestimate the oral. Expect 2–4 hours of teaching scenarios, system diagrams, and chart briefings before you ever touch the airplane.

Do I need to take the FII written test if I already have my CFI?

Yes, in most cases. The FOI knowledge test is waived if you already hold a flight instructor certificate, but the FII (Flight Instructor Instrument Airplane) knowledge test is still required to add the instrument instructor rating. The exception is if you hold a CFII in another category, such as helicopter, in which case the FAA grants partial credit. Check the current 8900-series for exact rules before scheduling.

How many hours do I need for the CFII?

There's no specific minimum hour requirement unique to adding the CFII rating. You must already meet the underlying requirements for your commercial certificate and instrument rating under FAR 61.65, including 50 hours of cross-country PIC and 40 hours of actual or simulated instrument time. Beyond that, you need enough training and competency to satisfy your endorsing instructor and the DPE.

Can I take the CFII checkride from the right seat if I've never flown there?

Technically yes, but it's a bad idea. The DPE expects you to demonstrate maneuvers and approaches from the instructor's seat. The sight picture, throttle hand, and instrument scan are different. Most successful CFII applicants log at least 5–10 hours of right-seat instrument flying — including partial panel and approaches — before the checkride. Skipping this step is the most common avoidable failure point.

What's the pass rate for the CFII checkride?

FAA data varies by FSDO and DPE, but CFII first-attempt pass rates typically run lower than initial instrument checkrides — often in the 65–75% range. The most common failure points are teaching ability during the oral, partial panel approaches, and weak regulatory knowledge around alternates, currency, and IPC requirements under FAR 61.57. Solid prep with mock orals dramatically improves your odds.

What endorsements do I need for the CFII checkride?

Per FAR 61.183 and 61.187, you need an endorsement from an authorized instructor stating you've received the required ground and flight training on the areas of operation in the Flight Instructor — Instrument ACS, and that you're prepared for the practical test. If you haven't taken the FII written, you'll also need a knowledge test endorsement. Verify your endorsements match current FAA wording — outdated language gets rides postponed.

How long does the CFII checkride take?

Plan for a full day: 5 to 7 hours total. The oral typically runs 2 to 4 hours, depending on the DPE and how cleanly you handle teaching scenarios. The flight portion runs another 1.5 to 2.5 hours, including at least one precision approach, one non-precision, partial panel work, holding, and a missed approach. Add time for paperwork, weather delays, and debrief.

What's the difference between teaching instrument flying and just flying instruments?

Flying instruments is a motor and scan skill. Teaching it requires you to verbalize what your eyes are doing, predict where a student will get behind the airplane, and intervene before the trend becomes a deviation. The DPE wants to hear you narrate the scan, identify common errors before they happen, and explain why a procedure exists — not just execute it. That shift in mindset is the entire CFII rating.

CFII Checkride: Complete Prep Guide

The CFII checkride is not a harder instrument ride. It's an instructor ride that happens to be in the clouds. The DPE wants to see that you can diagnose, demonstrate, and teach instrument flying — including the cognitive traps that get instrument students killed. If you walk in trying to fly a perfect ILS, you'll likely fail the oral before you ever touch the airplane.

This page breaks down exactly what's tested, what's required by regulation, and how to prep efficiently.

CFII eligibility requirements

Under FAR 61.183 and FAR 61.187, to add the instrument-airplane instructor rating you must:

Hold a Commercial Pilot Certificate or ATP with airplane and instrument-airplane ratings
Hold a Flight Instructor Certificate with airplane category (or be adding CFI and CFII concurrently)
Pass the FII (Flight Instructor Instrument) knowledge test — unless you already hold a CFI in another category/class with a current FOI
Receive and log ground and flight training from an authorized instructor on the areas of operation in the Flight Instructor — Instrument ACS
Receive an endorsement from your instructor stating you're prepared for the practical test

There is no specific flight-hour minimum unique to the CFII beyond what's already required for the underlying commercial and instrument ratings under FAR 61.65 (50 hours of cross-country PIC, 40 hours actual or simulated instrument, etc.). What the FAA cares about is competency, not a logbook number.

The two-part exam: oral + flight

Phase	Approx. duration	What's tested
Oral	2–4 hours	Teaching ability, regulations, IFR systems, weather, aeromedical, risk management
Flight	1.5–2.5 hours	Demonstrating and teaching instrument maneuvers, approaches, holds, partial panel

Most CFII checkrides run 5–7 hours total, weather and DPE depending.

Areas of operation in the FII ACS

The Flight Instructor — Instrument ACS organizes the test into these areas. Expect the DPE to pick at least one task from most of them:

Fundamentals of Instructing — usually waived if you already hold a CFI
Technical Subject Areas — IFR regulations, IFR charts, airspace, publications
Preflight Preparation — weather, performance, FAR 91.103, required equipment per FAR 91.205
Preflight Lesson on a Maneuver to be Performed in Flight
Air Traffic Control Clearances and Procedures
Flight by Reference to Instruments — basic attitude instrument flight, scan, partial panel
Navigation Systems — GPS/RNAV, VOR, ILS, LPV, RNP
Instrument Approach Procedures — precision, non-precision, missed, circling, partial panel
Emergency Operations — loss of comms, vacuum/AHRS failure, unusual attitudes
Postflight Procedures

The oral exam: what DPEs actually ask

The oral is where most CFII applicants fail. Not because they don't know instrument flying — because they can't teach it. Common deep-dive topics:

Regulations and currency

FAR 61.57(c) instrument currency: 6 approaches, holding, intercepting and tracking, in 6 calendar months
IPC requirements when currency lapses 6+ months
IFR fuel reserves under FAR 91.167
Alternate requirements: 1-2-3 rule, FAR 91.169
Equipment required for IFR: FAR 91.205(d) — GRABCARD
Pitot-static and transponder checks: FAR 91.411 and FAR 91.413

Systems and instruments

Expect a whiteboard session on the vacuum system, pitot-static system, gyroscopic instruments, electronic flight displays, and GPS/WAAS. You will be asked to teach how a heading indicator precesses, why the altimeter lags, and how to recognize partial panel failures.

Approaches and procedures

Be ready to brief any approach plate from memory: minimums interpretation, MSA, TDZE, DA vs. MDA, LPV vs. LNAV/VNAV, circling categories, missed approach segments, and when you can descend below DA/MDA under FAR 91.175.

Aeromedical and human factors

Spatial disorientation types (somatogravic, somatogyral, Coriolis), the leans, vestibular illusions on the missed approach, hypoxia, and how to teach scan technique to a student stuck on one instrument.

The flight portion: demonstrate and teach

The DPE plays the role of a primary instrument student. You are expected to:

Talk through every maneuver before, during, and after flying it
Demonstrate from the right seat to PTS-equivalent ACS tolerances
Identify common errors a student would make and how you'd correct them
Recover from unusual attitudes and teach the recovery

Maneuvers commonly tested

Basic attitude instrument flying — full and partial panel
Steep turns on instruments
Unusual attitude recoveries
Holding entries — teach all three (direct, parallel, teardrop)
At least one precision approach (ILS or LPV) and one non-precision (LNAV, VOR, LOC)
A partial panel non-precision approach — this is where most rides go sideways
Circling approach to minimums
Missed approach procedures
Intercepting and tracking courses, DME arcs (still fair game)

Right-seat reality check

If you have not flown approaches from the right seat, do it before your checkride. The picture is different, the throttle hand is different, and trying to demo a partial-panel localizer for the first time with a DPE next to you is a great way to find out you're not ready.

Common reasons CFII applicants fail

Teaching like a pilot, not an instructor — flying it well but not narrating, not identifying errors, not building the lesson
Weak on partial panel — especially compass turns and timed approaches
Sloppy chart briefings — missing the MSA, missing notes, missing the missed
Regulatory fuzziness on alternates, currency, and IPC
Can't explain GPS beyond "it knows where I am" — RAIM, WAAS, LPV vs. LNAV+V, RNP

A 4-week prep timeline

Week	Focus
1	FII ACS cover-to-cover. Build lesson plans for every Area of Operation.
2	Right-seat flight time: BAI, partial panel, holds. Drill the oral nightly.
3	Approach plate teaching reps. Mock orals. System diagrams from memory.
4	Two full mock checkrides. Light flying. Sleep.

How GroundScholar helps with CFII prep

GroundScholar's CFII module is an AI examiner trained on the Flight Instructor — Instrument ACS. It runs unscripted oral exams the way a DPE does: it asks a question, listens to your spoken answer, follows up on weak spots, and pushes into scenario-based teaching prompts ("your student just busted the localizer — what do you say?"). Every regulatory citation it gives is verified against the live FAR/AIM, so when it tells you the alternate rule is in 91.169, it's actually in 91.169.

You also get a mock checkride with pass-prediction, adaptive drilling on your weakest ACS tasks, and right-seat scenario sets for approaches, holds, and partial panel teaching. Most users run 3–5 mock orals before checkride day. The point isn't to memorize answers — it's to make the real oral feel like the tenth one you've done.

Day-of-checkride tips

Bring two current sectional/IFR low charts and approach plates for the area
Bring your logbook with all endorsements verified by your CFI
Bring the airplane's maintenance logs, AROW documents, and current databases
Bring an IACRA application completed and signed
Bring lesson plans — DPEs love seeing them, even if not strictly required
Eat. Sleep. Don't cram the morning of.

The CFII rating is the most useful instructor add-on you can earn — it opens up the highest-paying CFI work and forces you to actually understand instrument flying instead of just executing it. Prep like an instructor, not a pilot, and you'll pass.

Ready to stop guessing what the DPE will ask? Start free →