Garmin GFC 700 Autopilot

The Garmin GFC 700 Autopilot is an amazing machine.  Fully digital and fully integrated with the Garmin G1000 glass panel, it makes a pilot’s workload a lot easier, especially in busy airspace.

I train a lot of pilots in airplanes that have the Garmin GFC 700 autopilot.  The Cirrus SR22, the Columbia 350 & 400, the G36 Bonanza, and the Piper Mirage and M350 to name a few.  The most common problem I see for pilots transitioning into the Garmin GFC 700 equipped aircraft is that it doesn’t act like other autopilots.

STECs and DFC 90 Autopilots function like this:  you push the button for the mode you want on the autopilot controller and that turns the autopilot on.

Not so on the Garmin GFC 700.  If you push the button for the mode on the GFC 700, then the flight director engages, but not the autopilot.  This confuses folks a lot who move up from different autopilots because their autopilot primacy side of their brain is telling them the autopilot is on whenever they push one of the buttons on the GFC 700 controller.

Here’s an example:  A pilot has just departed and is ready to turn on course.  In his old airplane with an STEC 55x autopilot, the pilot pushes the direct to key to go to his first waypoint, then pushes NAV on the autopilot controller and the STEC 55x comes on and starts flying on course.  Then he presses VS and ALT to initiate a climb.

With the same scenario and a Garmin GFC 700 autopilot, the same pilot (who is used to a 55x), pushes the direct to key, then pushes NAV on the autopilot controller and pushes IAS or FLC to initiate the climb.  He lets go of the flight controls thinking the autopilot is engaged.  The airplane starts nosing over and he starts panicking.

Why did this happen?  The pilot in the second scenario never pushed the AP button on the Garmin GFC 700 so the autopilot never engaged.  All he did by pressing the NAV button and IAS button was to turn the flight director on.

How to remedy this?  Get in the habit of checking your scoreboard.  On the top of the G1000 or Garmin Perspective PFD, there is an autopilot annunciation strip (or scoreboard as I like to call it).  In the very middle of the scoreboard is an area to show if the autopilot or flight director is engaged.  AP means the autopilot is on; FD means the flight director is engaged but the autopilot is not.

I teach pilots to be in the habit of checking your scoreboard each time you get done pressing buttons on the autopilot controller to ensure the Garmin GFC 700 is in the proper mode.  This saves some of those panic moments when it is supposed the AP is engaged, but it’s only the FD.

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    First Aid Kit on Steroids

    We have all seen the little first aid kits that a pilot can get to carry in an airplane. It usually has some bandaids, maybe some gauze, and some antibiotic ointment. Very helpful in the even that your paper VFR chart cuts your finger when you are unrolling it.

    What happens if you crash in a harsh environment and you have some actual injuries to take care of?

    Enter the Guardian Seven Trauma G7-Alpha Trauma and Egress Kit. It literally is a First Aid Kit on steroids.

    Guardian Seven Trauma has put together a kit that contains just about anything you need to take care of an injury from an airplane crash. Plus, the kit only weighs less than 2 pounds. It easily mounts in an aircraft and can be opened with only one hand.

    The kit contains:

    • CAT Tourniquet
    • Quick Clot Z Hold Hemostatic Gauze
    • 4″ Emergency Trauma Dressing
    • Nasal Airway
    • ARS Needle
    • HyFin Chest Seal Twin Pack
    • (4) 3″ Gauze Rolls
    • Triangle Bandage
    • Mylar Blanket
    • Leatherman Z Rex Tool (for emergency egress)
    • Trauma Shears
    • Roll of Medical Tape
    • Bear Claw Glove Kit
    • Permanent Marker
    • Multi Purpose Paracord Handle
    • Nylon Straps with Buckles (2)
    • Medical Patch

    Want to upgrade your first aid kit? Visit Guardian Seven’s website to order the G7-Alpha kit.

  • GAMI Gains STC for G100UL, Unleaded Avgas

    For years, there has been clamoring for airplanes to get rid of lead in piston engine Avgas. In the early 2000s, Thielert created a Jet A burning piston engine for Diamond Aircraft that gained some traction, but Thielert had internal issues and ended up declaring bankruptcy. Several other Jet A piston engines have come down the line since then to some success (Diamond is currently using 2 Austro manufactured Jet A piston engines on it’s DA62 and a Continental manufactured Jet piston on the new DA50).

    The problem with a Jet A burning piston engine, though, is that those engines would be very expensive to put on existing airplanes, not to mention the cost of the STC alone.

    Insert GAMI (General Aviation Modifications, Inc.), the famed Ada, Oklahoma company that championed turbo normalization, balanced injectors, and lean of peak operations. For those that have been to GAMI’s engine class, you know that these guys are at the very top of their game in engine knowledge.

    In 2010, GAMI started the process of creating an Unleaded form of Avgas, terming it G100UL (the irony of traditional Avgas, 100LL, is the LL starts for low lead, but the lead levels in 100LL are actually quite high. UL stands for UnLeaded). Just before Osh Kosh in 2021, GAMI revealed that it’s work has come to fruition, gaining an STC for G100UL for Lycoming powered Cessna 172s.

    The amazing thing about GAMI’s product is that it is able to mix with 100LL and not cause any issues. This means fuel trucks, fuel lines, fuel pumps, and aircraft fuel tanks don’t have to have any modifications to them to use G100UL. Plus, pilots will see longer engine life using G100UL because of the simple elimination of the lead. In tests, combustion chambers in cylinders burned cleaner, so theoretically, cylinders and engines will last a lot longer.

    According to the company, GAMI has a few more tests to run and, assuming those go well, G100UL will be available for a whole lot more airplanes. An STC will still be required for the use of G100UL in a specific airplane, but the hope is, eventually, 100LL will be completely replaced by G100UL. The only downside is that G100UL is expected to cost about $1/gallon more than 100LL.

    GAMI has partnered with Avfuel, so expect to see 100UL showing up at all Avfuel FBOs in the next year or two.

    To read more, check out the press release on AOPA’s website.

  • Checking The Stall Warning Horn

    When a pilot first glances at the title of this article, the first thought that probably goes through that pilot’s head is, well that’s easy.

    And it is, if you are flying a high wing Cessna. On other airplanes, there are a few tricks to checking the stall warning horn. If you get them wrong, you’re liable to get a bill from your maintenance shop for an hour of labor for a problem they couldn’t duplicate.

    Cirrus SR22

    Let’s start with the Cirrus. On the pre-FIKI Cirrus aircraft, there was a small little hole in the wing that contained a diaphragm. That diaphragm sensed a change in airflow at a certain angle of attack just below the critical angle of attack and set off the stall warning horn. Unfortunately, the only way to check that is to suck on the hole during pre-flight.

    I don’t. I verify the hole is clear and that’s about it.

    On the FIKI Cirrus aircraft, there is actually a stall warning vane. It looks like a high wing Cessna vane, but if you turn the batteries on and try and get it to come on during your light and pitot heat check, nada.

    Here’s the trick, and the checklist doesn’t do a good job of describing this.

    • Turn on the Avionics Master
    • Turn on the speaker
    • Put the flaps to full
    • Then move the stall warning vane and you’ll hear the horn

    The speaker and the Avionics Master are so you can actually hear the horn (if you had the headset on while you were doing this, the speaker would be unnecessary). The flaps have to be full because the pitch attitude for the critical angle of attack is lower with the flaps down, so the horn goes off when at a different angle. You then don’t have to use as much force to push the vane.

    Piper PA46

    The early -310P Malibus are pretty simple and straight forward. Move the vane, get the horn.

    In the -350P, you can’t get the horn to come on by moving the vane. So, Piper put a stall test button that’s hidden underneath the upper left side of the instrument panel. Push that to test the horn. On the G1000 PA46, it is located directly above the PFD. On the Avidyne, it’s below and to the left of the pilot’s yoke.


    Testing the stall warning horn is a very important part of pre-flight. A pilot needs to know if the aircraft is close to a stall. The advent of Angle of Attack indicators in small, GA aircraft, have added a greater awareness to the angle of attack during all phases of flight to avoid those stall spins.

    If the stall warning horn goes off or the AOA shows yellow, lower that nose immediately.

  • The PIC Isn’t Always the Pilot Who Took Off

    You are at cruising altitude and your flight is going just as planned. All of that can change, sometimes without much warning, and you, the non-pilot, are now in charge. Would you know what to do?

    This was a scary thought for me until I attended a seminar developed for the non-flyer at a Cirrus Owners Pilot Association (COPA) fly-in. Cirrus is the only small plane with a parachute as standard, so I thought all I had to do in an emergency was pull the chute. It’s a little more complicated than that!
    I learned the vast majority of pilot incapacitation happens when the plane is at cruising altitude, so there is time to find a solution.

    anne-pargeter-picture

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    • First attempt to revive the pilot. If he is choking, it is possible to do a Heimlich maneuver from the side. This may dislodge whatever is blocking his airway and solve the problem. If he is experiencing hypoxia, turn off the heat, open all vents, and, if you have on board oxygen, use it. Also, if you can, get instructions on how to descend to a lower altitude. If the pilot is unconscious due to a heart attack or other medical emergency, there are still things you can do from the right seat.
    • Engage the autopilot if it isn’t already on and move the pilot off the controls. *
    • Ensure you are connected to the radio. If you hear ATC or other pilots, you are.
    • Send an electronic trouble message. Set the transponder to 7-7-0-0 to identify your plane to ATC. This will cause your plane to be highlighted on ATC radar screens.
    • ATC will most likely contact you asking what is your emergency. If this does not happen, you will need to transmit a Mayday call. All non-pilot passengers should know how to use the radio to get help, if they know nothing else.
    • With help from ATC, decide where you want to go.
    • Use the autopilot to fly in the direction suggested by ATC. I was taught that ultimately the choice of where to deploy the parachute is up to me because I am now the PIC, pilot in command.
    • Ensure that seat belts are secure and the emergency hammer is between your legs (so you have it to break a window to escape if needed).
    • Pull the parachute handle.
    • On the way down, shut down the engine and brace for impact.
    • After landing, move away from the plane, into the wind. Stay nearby and wait for help.

    The seminar covered specific procedures to accomplish these basic steps, what to do if you don’t get a response from ATC, what to say in a Mayday transmission, how to fly a heading, how to check fuel levels, shut down the engine, etc. After the seminar, I felt much more comfortable about what to do if my pilot suddenly lost consciousness.

    I was also told to practice what I had learned to avoid panicking in an emergency situation. There are so many things the person in the right seat can do under normal circumstances to practice. Learn how to set heading bugs, learn where the plane’s Electronic Locator Transmitter (ELT) is located and how to activate it. This will help rescuers locate the airplane. Learn how to assess your fuel levels. Practice making routine radio transmissions. Observe what your pilot does and ask questions if you don’t understand something.

    Knowing what to do in an emergency situation will give you a sense of control over what will happen to you, your pilot, and any passengers on board your plane. If you have never considered taking a lesson or two for the non-pilot, find yourself an instructor, and learn what you need to know for your plane. Hopefully you will never have to use it, but if you do, you will be ready to be the PIC who lands the plane.

    Anne and her husband Stephen are the proud owners of a Cirrus SR20. They plan to put the airplane to better use once Stephen retires. Anne has a background in desktop publishing and writing.

  • King Schools Updates Check Ride Guidance

    King Schools LogoMost in the aviation industry are familiar with John and Martha King, the faces of the myriad of Kings Schools aviation training courses.  Thousands of pilots have gone through their ground school courses for a variety of certificates or ratings, taking in the videos on original VHS, DVD, or streaming online depending on what the current technology is.

    With the advent of the Airmen Certification Standards (ACS) replacing the Practical Test Standards (PTS) for the private and instrument certificates, King Schools didn’t take long to update their material.

    To help private students prepping for their check ride (and their instructors who aren’t familiar with an ACS check ride yet), John King plays the student pilot in the latest King Schools prep video.  The streaming online video is about 5 hours long, includes the oral portion and the flight portion of the check ride, and runs $139 (you can still get the DVD, too!).

    I have recommended King Schools and their courses to all of my customers.  They have always put out a great product as they reduce the fear felt for a check ride applicant.  If you are prepping for your private pilot check ride, checkout the King Schools video today.

  • The Aunt Betty Directive: PFD Failures

    Glass panel displays, ballistic parachute aircraft recovery systems, portable tablet computers enabling paperless cockpits, and widely available three axis autopilot systems have changed the way we fly, the way we train, and the way we are expected to perform on check rides. Our training and testing paradigms have tried to stay in synch, yet always seem to be catching up to the latest levels of technology.

    This is very apparent when we instructors are preparing a student for an FAA practical test. When training aircraft had no autopilots, no GPS, and certainly no parachutes, the general philosophy was that during training, the student should have the lowest level of technology available. This was also the expectation on the check ride. This theory has changed over the years and now the Practical Test Standards require that an applicant integrate all available technology while demonstrating mastery of his or her aircraft. This raises numerous questions from instructors and students about what technology will be available for each task.

    One example of this dilemma is found when contemplating an instrument airplane practical test in a Cirrus SR20/SR22. The test requires the task “Instrument Approach without Primary Flight Display”, which has taken the place of what was the partial panel approach, accomplished without use of gyroscopic heading and attitude indicators. In the Cirrus, the standby attitude indicator, standby airspeed, and standby altimeter are available, as is the Multi-Function Display. Guidance from the FAA has us shooting a GPS approach using the moving map display on the MFD after disabling the PFD. Those of us who trained and tested in steam gauge aircraft think that this task should be fairly easy. With a fully functional Attitude Indicator and a nice big moving map display showing our course, a reasonably competent instrument pilot should have little trouble adapting to this setup and flying a good approach.

    But, in the Cirrus specifically, and perhaps in other aircraft as well, another question comes up. Can the applicant use the autopilot (which still works just fine after a display failure) during the approach without the PFD? A rather famous DPE who writes for a national magazine says “yes”, opining that not to allow its use would be introducing simultaneous multiple systems failures, which is strictly forbidden in the minds of some. If we follow this logic, we would not test simulated engine failure emergencies in these aircraft either, because to do so would imply failure of not only the engine, but the CAPS parachute system as well. In my former role as a pilot examiner, I always said no, that the approach should be hand flown. Here is my logic.

    I was amazed that flight instructors and examiners would accept the substitution of autopilot technology for the skill required to fly an approach without the PFD. I would argue that the intent and the well described emphasis of the PTS is that the applicant must demonstrate the ability to control the airplane after a loss of the primary flight display, not observe and monitor the autopilot controlling the airplane! This argument was generally unpersuasive, so I approached from a different point of view, that of a concerned family member.

    “Aunt Betty” represents a future passenger flying with the soon to be rated instrument pilot. Here is the question posed to Aunt Betty: “When we train and test pilots for instrument proficiency, we require them to demonstrate the ability to safely and skillfully fly the airplane without their primary instruments. Now, Betty, in this airplane, we can test this task in one of two ways. We would like your input on which way you would prefer, seeing as you will be a frequent passenger with your nephew. We can either have the pilot (might be your son, brother, husband, or nephew) demonstrate that he can fly the airplane by hand without the PFD, which does require a little more skill and a slightly different technique, or, we can require the pilot to perform this task using the autopilot so that the pilot basically monitors the airplane flying itself on the approach.

    “Now, Aunt Betty, a pilot allowed to use the autopilot system on this approach may not have the skill or technique to fly the approach by hand in the clouds should the autopilot shut down due to turbulence or mechanical failure. Should this happen to a pilot without the skill and practice normally required, the odds of a fatal accident occurring would be quite high.

    “So what do you think, Aunt Betty? Would you feel more comfortable flying with this fellow if he has demonstrated mastery of the aircraft (sans PFD) without the autopilot or only with its assistance?”

    This leads us to a larger discussion about the use of other technology, iPad, GPS moving map, and more. If technology is used as a replacement for pilot proficiency during training and testing, we end up with less skillful, less competent and ultimately less safe pilots. But, if we require that our students demonstrate mastery with the lowest available level of automation and technology (which, by the way, implies excellent fundamental aircraft control skills) then, when technology is added into the equation, we have a safer pilot.

    Technology can be a value added safety multiplier, or it can be a crutch needed to make up for lack of fundamental and advanced skills. Crutch or Safety Multiplier, which one will you choose? I know which one Aunt Betty prefers.

    Charles McDougal is a flight instructor, corporate pilot, and former DPE ‎who offers basic and advanced flight instruction in the San Antonio area.  To find out more information about Charles or to contact him, visit his website, www.flighttrainingcoalition.com.

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