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In the context of flight training, the discussion around simulator time that can be logged versus not logged is an important one. There is a general argument that if the FARs do not allow the time to be logged, then why spend more time in a simulator?

Firstly, it is important to understand that there is a difference between “logging” and “being able to apply” those hours for credit towards the PPL. The FAA does not impose any maximums in terms of simulator (BATD, AATD, FTD) time that can be logged. However it does place maximums of how many of those hours can be used as credit towards the PPL certificate.

Home simulator

You can’t log this time, but does that make it worthless?

The regulations indeed place certain limits on the amount of simulator time that can be counted towards flight training minimums. For example, the minimum hours needed to achieve the PPL is 40 hours. Of the 40 hours, the FAA allows for 2.5 hours to be used as credit towards the PPL using a qualifying simulator (FAR 61.109).

Similarly, the FAA allows for 20 hours of the 40 hours of instrument time required towards the instrument rating to be achieved on a simulator (FAR 61.65). If it’s a Part 141 school, the allowances go up to 15% of minimum time required (40 hours) which is 6 hours (Part 141, Appendix B (c)(3)) for Private Pilot. In a Part 141 school for the Instrument Rating, the credit goes up to 25% if using a BATD, or 40% if using an AATD or FTD.

While these are maximums that current regulations impose, it is a flaw to limit the use of the simulator to these numbers. Let’s examine why.

Simulators provide a whole lot of value when it comes to flight training. The value earned is typically in terms of either reduced time to complete training or reduced cost of completing training.

Such value is better understood when it is broken down into direct value and indirect value. The direct value is in reduced cost that one pays for the simulator hours as compared to real-aircraft hours. The indirect value is even more important. Every hour spent on a simulator brings about learning in some form and eventually reduces the amount of real-aircraft time needed to complete training. Research has shown this over the years. Every iteration of training performed on the simulator leads to reduced iterations of practice that would be required in real-world aircraft. This reduction in iterations leads to compressing training time while also reducing training costs.

The US national average to achieve a PPL is around 70-75 hours. It has been proven that blending simulator time into the training drops that number down to 55-60 hours. This is despite the fact that only 2.5 of those simulator hours can be used as credit towards the PPL (if Part 61, or 6 hours for Part 141 schools). Even if we blended in 20 hours of simulator time and total training hours equalled 70 or 75, the cost of those 20 hours in a simulator is far lower than in a real-world aircraft. Given a simulator’s ability to pause, re-position, and restart scenarios at the press of a button, the number of practice iterations that can be conducted in a 90-minute slot is much higher than in a real-world aircraft.

As with anything, there is always another perspective. Ask an experienced CFI—and I did ask Sean, a CFII and a corporate pilot—and the response was, “…personally I think PPL students need time in the airplane to learn to ‘feel’ the airplane.”

That said, there are a lot of areas in flight training that don’t require running a real-world aircraft to achieve that training. To name a few: understanding the workings of the GPS onboard an aircraft, practicing procedures under instrument failures, pattern entry, runway or taxiway markings, airspace entry and avoidance, engine-out scenarios, getting visual feedback of the rectangular pattern, descent procedures, VOR workings, DG or HSI use, and autopilot use.

Once again, most experienced CFIs would argue that a simulator can certainly introduce an instrument failure to a student on the sim, but it’s a totally different feeling when you’re in an airplane and you lose an attitude indicator in the clouds. The CFI view on this is that simulators miss the emotion where “suddenly the body is fighting what the eyes are telling the brain, leading you to put the airplane into a position you didn’t intend to… it’s very hard to simulate that sensory illusion.” Sean went on to add about engine failures, “there’s a much different feeling you get in your gut when you’re running out of airspeed, you’re getting low and you suddenly realize you didn’t plan your approach well to the field or runway in a real airplane… a sim will teach you the procedure, sure, but the airplane combines feel, procedure, skill, and fear all at once.”

RedBird FMX

A simulator can’t teach you stick and rudder flying, but it can teach you many other skills.

There is no taking away that there is a lot of teaching and learning that comes out of  experiencing the imperfections of the machine.

On the other hand, the ability to experience a solo cross country flight before it is undertaken in the real-world aircraft, in certain weather conditions, and across uneven terrain gets the flying brain engaged. Building muscle memory around checklist use and proper sequence of actions in the cockpit can all be accomplished better in a simulator and help get prepared for a checkride at much lower cost.

CFIs agree that simulators have come a long way over the years. What this means is that the industry needs to adopt a balance. It also means that there is not a “one size fit all” approach. For the PPL, real-world stick time is essential to some extent. For any of the follow-on certifications, a simulator is absolutely viable and essential.

The idea until now has been that a PPL student gets 2.5 hours of value (or 6 hours as the case may be) from the simulator and the rest has to happen within a real-world aircraft. Simulators have advanced significantly over the decades. The time has come for this idea to be flipped, within limits of course, as indicated above. It may be completely possible for flight training curriculums to aim to perform the FAA-prescribed minimum time (40 minus the 2.5) in a real-world aircraft and perform the rest of the training on a simulator. Going by the national average, this would amount to 35 hours of real-world aircraft time being substituted by a simulator. A savings that quickly adds up to $3500-4000!

Hence, the next time you have access to a simulator, make the most of it. If you do not have access to a simulator, make sure to find a location that has one. When in a simulator, use it to practice those aspects of flight training, such as the use of the GPS, that you won’t have the time or attention to work on while in a real-world training aircraft.

Simulators are time and cost compressors. Make the most of them when they are available. Do not limit your use of the simulator to maximums prescribed by the FARs. Remember, the time may not all qualify for the credit, but every hour spent on the simulator reduces your real-world aircraft time and your costs.

CP Jois
5 replies
  1. JT
    JT says:

    AATD are certainly underutilized in GA training, for several reasons. One, the average CFI is trying to build flight hours and sim time does not count. Two, students typically prefer to fly in the “real aircraft.” Third, many flight schools’ have an approved syllabus written before excellent AATD became available.

    • CP Jois
      CP Jois says:

      Thanks for your comment. Your points are valid and indeed there will always be a preference for the real thing. If money was no factor, then indeed flying real aircraft would be something every aviator would aspire for. However, there is something to be said about the opportunity that a simulator provides to practice scenarios that you can perhaps rarely do in a real aircraft.

  2. Charles Lloyd
    Charles Lloyd says:

    Seems to me the 20 hours simulator for cross country is mixed up with the 20 hours time ATD instrument instruction credit toward 40 hours instruction toward instrument rating. Wish we could credit ATD cross country toward requirements for instrument rating prerequisites.

  3. Steve Devereux
    Steve Devereux says:

    I’m planning to regain my MEP after an absence of some years. I splashed some cash to set up a simulator, force feedback controls with twin throttle quadrant and Xplane. Then I started to think about engine failures at very low height agl; something we never practice for real. The standard advice is to cut throttles and land straight ahead. I tried this repeatedly in the simulator and crashed most of the time. I’ve now done over 100 takeoffs with low engine failure and have refined a technique to consistently have a survivable landing. I put together a short (>10 mins) video and uploaded to Youtube. If interested take a look and let me know what you think. https://youtu.be/6WVs-IjNKB8 – using a simulator in this way could save my life. and my passengers one day. It also gives realistic training on asymetric flight and lets me shoot approaches. Comments very welcome. Regards, Steve Devereux.


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