Electronic Flight Information Systems (EFIS) Differences Training


Differences Training is a mandatory requirement before undertaking flight in aircraft that include any of the specified "Official Differences" categories. Training must be performed by an instructor who already has that "difference" signed off themselves. Differences Training is recorded in your log book, with an official CAA certificate (sticker) recording the completion of training, signed by the instructor.

EFIS can take many forms, from many different manufacturers. We regularly train people in aircraft equipped with EFIS, ranging from standard General Aviation types (such as Piper, Cessna and Cirrus to name a few) right down to Sports Cruisers. The types of EFIS varies (as a general rule) to the size of the aircraft. For example, standard GA types tend to have Garmin (such as the G1000) or Avidyne with G430 or G530. Smaller aircraft may have the likes of Garmin G3X Touch, or MGL.

You'll be pleased to hear that whatever you have, we're more than happy to train you. In particular we are experts in the Garmin range.

Difference Training for EFIS generally comes with a two-stage sign-off.

Stage one usually comprises flying VFR on the basic presentation, including communications, basic GPS navigation and basic auto-pilot. We know too well the pit-falls that happen with people transferring from "Classic Instruments" to EFIS - so we'll point these out to you! Theoretical Training on the type of EFIS is included to understand system failures, what they look like (we'll give you some for real!), and how to cope with them.

Stage two covers the more advanced features of your system, including configuration of the display, and presentation of conventional navigation aids and their use within EFIS. We also look more closely at flight planning, the Autopilot and Flight Director modes, and (if you're qualified to do so) Instrument Approaches.

Legally, you should obtain differences training for each type of EFIS installation (e.g. one for G1000, and another for Avidyne).

The conversion time is quite variable, depending on your type of EFIS. Although there is no legal minimum training time before sign-off, we will only certify your difference training once we are satisfied of your competence. Some people take more time, and some people take less! It's down to the individual concerned.

See below for further information.


Training Syllabus

Our syllabus not only conforms to the officially required trianing, but we also show you some tips, tricks and best practices to ensure you get the very best out of your time spent with us.

  • System Overview and Components
  • Human Factors
  • Basic Operations
    • Self-Checks and Databases
    • VFR Flying
    • Basic GPS Navigation
    • Auto-Pilot
    • System Failures
  • Advanced Operations
    • Integration of other NAV Aids
    • Flight Planning
    • Auto-Pilot and Flight Director Modes
    • Instrument Approaches
    • Advanced System Failures


Remember that you are being instructed by an instructor with an enviable reputation for delivering results to you. Our personal objective is to make sure you land with a smile on your face. If you don’t – we haven’t done our job properly.

There are three options for our instructional charges; £50 per hour, £150 per half-day, or £250 per full day.

If you want us to come to you, just add our travelling and accommodation (at cost).

The aircraft costs are extra; you can use your own aircraft, hire from a training organisation local to you, or hire from a training organisation local to us.


Where can I do this course?

We are more than happy to come to you wherever you are! However, we normally operate in Essex, with relatively easy access to the airfields in the area. We teach (and examine) regularly (either as part of a club or freelance) at Earls Colne, Andrewsfield, North Weald, Duxford, Crowfield and Cambridge. There are numerous smaller airfields available such as Elmsett, Clacton, Rougham and Great Oakley within easy reach. Southend and Stapleford are also possible.


Which Aircraft can I use?

You can use your own or syndicate aircraft, which in some ways, is better since you'll become really familiar with it as part of the course!

If you belong to a flying club already, most organisations are happy for us to instruct in their aircraft if that's an option you'd like to pursue.

If you need to hire an aircraft locally to us, we have access to a variety of aircraft types and training organisations. Please feel free to contact us for more detailed information.