The Engine Failure in Cruise, Best Glide, and the ABC Flow That Buys You Time When It Gets Quiet

If your engine quits in cruise, the very first action is to push the nose down and establish best glide speed, then trim to hold it hands-off. Only after the airplane is flying itself do you pick a landing field and run your restart checklist. This priority - fly, pick, fix, talk - is captured in the ABC flow: Airspeed, Best field, Checklist and communicate, and drilling it until it beats your fear is what turns a survivable forced landing into a walk-away.

What Actually Happens When the Engine Quits?

The engine failure itself is just a mechanical event. The real emergency is what happens in your head in the four or five seconds after it goes quiet - and that is the part you can train.

A real engine failure rarely sounds like the movies. Sometimes it’s a cough, sometimes a slow creeping roughness, and sometimes it’s sudden silence where the loudest thing becomes the wind over the windshield and your own heartbeat.

In that moment your body does something unhelpful. Your hand wants to freeze, your eyes lock onto the tachometer as if you can fix it by wishing, and the nose starts to drop - or worse, you instinctively pull back to hold altitude and drift toward a stall while you’re distracted.

That’s why you need a flow so simple and so drilled that you execute it before the fear even finishes arriving.

What Is the First Thing to Do in an Engine Failure? (A Is for Airspeed)

The first action is airspeed, and it’s the whole ballgame. The instant the engine quits, you push, lower the nose, and establish best glide speed. Not hold altitude. Not troubleshoot. Fly the airplane first.

Best glide is the speed that gives you the most distance across the ground for every foot of altitude you have in the bank. In a Cessna 172 it’s right around 68 knots, depending on model and weight, and a Piper Cherokee lives in a similar neighborhood. Look up your airplane’s number on the emergency page of the POH and memorize it like your own phone number.

Here’s what students get wrong: best glide does not mean slow. It’s a specific speed, and both sides of it hurt you. Too fast and you burn through altitude carrying speed you don’t need. Too slow and your glide steepens as you creep toward a stall - which in an engine failure is how a forced landing becomes a spin into the trees.

Weight matters too. A lighter airplane glides best at a slightly slower speed, so solo with half tanks your best glide is a touch below the book number for max gross. But if you can’t recall that in the moment, just fly the book number - it’s close enough to save you.

Once the nose is set to the best-glide attitude, trim off the pressure so you’re not fighting the yoke. A trimmed airplane holds best glide by itself while your brain moves to the next two letters. An untrimmed airplane you’re wrestling eats every ounce of attention right when you need it elsewhere.

Where Should I Land? (B Is for Best Field)

Once the airplane is trimmed and gliding, look outside and pick where you’re going to land. Notice the order: you choose your field before you try to fix the engine. The ground is coming up whether you restart or not, and a field chosen early - with time to plan an approach - is a field you can actually make.

What makes a good field?

• Long enough and smooth enough to arrive under control
• Into the wind when you can get it, for slower groundspeed and a gentler stop
• Clear of obstructions on the approach - no wires, no trees, no light poles

Don’t burn precious seconds solving for wind if it costs you a good field. The best field into the wind beats the perfect field you can’t reach. And be honest about roads: sometimes a road is your best bet, but wires, traffic, and light poles line every road in America, so an open field almost always beats a road.

Altitude buys options. From 5,500 feet over farmland, most trainers can glide a good six, seven, or eight miles - a big circle with a lot of choices. That’s why you keep a background awareness of what’s beneath you and off your wing throughout the whole flight. When it gets quiet, you’re not searching; you’re turning toward the field you already noticed.

How Do I Know I’ll Reach the Field?

Use an aim point. Pick a spot on the field and watch how it moves in your windscreen:

• Sliding up toward you → you’re undershooting and will land short
• Sliding down and away → you’re overshooting and will float past
• Staying fixed in the glass → you’re going to hit it

This aim-point sight picture works the same on every approach you’ll ever fly, engine or no engine. When you have energy to spare, fly a normal traffic pattern to the field - a high key/low key spot above it, then downwind, base, and final, just like home. Don’t dive straight at it and arrive too fast, or dribble at it and arrive with nothing. Use the tools you already have.

How Do I Try to Restart the Engine? (C Is for Checklist, Cause, Communicate)

Now that you’re gliding, trimmed, and pointed at a field you can make, you get to play mechanic. Most engine failures - in training and in real life - are fuel or ignition, and they’re fixable if you catch them.

Run these memory items deliberately, touching and confirming each one:

1. Fuel selector – switch tanks; is there fuel in the one you’re on?
2. Fuel pump – on
3. Mixture – rich
4. Carburetor heat – on, if you fly a carbureted engine (carb ice is a quiet killer that presents exactly like this)
5. Magnetos – check both, try each
6. Primer – in and locked

Don’t rush the flow into a blur where your hand touches everything and confirms nothing. If the engine comes back, land at the nearest suitable airport and get it inspected - an engine that quit once will quit again. If it doesn’t come back, you’ve lost nothing, because you did all of this while gliding toward a field you already chose.

When and How Do I Call for Help?

Communicate last. The mantra is aviate, navigate, communicate - talking to a controller has never once kept a wing flying. When the flying is handled, do three things:

• Squawk 7700 on your transponder - the emergency code - so every radar screen that can see you turns your target special
• Say “Mayday, Mayday, Mayday” on the frequency you’re already on, or on 121.5, the emergency frequency guarded everywhere
• Give who, where, what, and your intentions

For example: “Mayday, Mayday, Mayday, Skyhawk one two three four Alpha, engine failure, ten miles south of the field, four thousand feet, forced landing to a field, four souls on board.” Say it slow and clear. If you never say another word, that one call sends help to your last known position.

And declaring an emergency costs you nothing. The regulations give the pilot in command the authority to do whatever is necessary to meet an emergency. The pilots who get in trouble aren’t the ones who declared - they’re the ones who were too proud to say the word and quietly ran out of options.

What About the Last 200 Feet?

The flow gets you to the field, but the final approach is its own skill. As you get close to the ground, several items go from optional to critical:

• Fuel selector – off
• Mixture – idle cutoff
• Magnetos – off
• Master switch – leave on until you need flaps, then off

You want to arrive with no fuel flowing and no spark, so that a rough arrival doesn’t become a fire. The airplane is replaceable; you are not.

The single most important thing in those last seconds: fly it all the way into the crash. Keep flying until the airplane stops moving. Don’t give up at 50 feet, and don’t stall trying to stretch to a slightly better spot. A controlled arrival into trees at the bottom of a good approach is survivable; a stall-spin from 100 feet because you froze or pulled usually is not. Wings level, best glide down to the flare, hold it off, let it settle.

What Does the Examiner Want on the Checkride?

On the practical test, the examiner will pull your power and say, “you just lost your engine.” The Airman Certification Standards (ACS) spell out what they want:

• Establish and hold best glide within a small tolerance
• Pick a suitable landing area and explain why
• Run the flow from memory, then back it up with the printed checklist if time allows
• Fly a pattern to the field that shows you could actually make it

More than anything, they want to see that you fly the airplane first. If you dive for the checklist and let airspeed decay, that’s a bust - even if you recite every item perfectly. Pitch for best glide, trim, then work the problem.

How Should I Practice This?

Practicing up high builds a hidden trap: because you set best glide, pick a field, run the flow, and then add power to climb away at 500 feet, your brain quietly learns that engine failures end with a go-around. The real one doesn’t.

So occasionally, under an instructor’s eye in a safe place, ride it down a little lower so the sight picture of the ground coming up isn’t brand new on the worst day of your life. Chair-fly it at home too: sit down, close your eyes, and run the whole sequence - push, trim, field, flow, radio - until your hands know it in the dark.

Key Takeaways

• Fly first. The instant the engine quits, push to best glide and trim - airspeed before troubleshooting, every time.
• Know your number. Best glide is a specific speed (about 68 knots in a Cessna 172); memorize it from your POH.
• Pick your field early, before running the checklist, and fly to it using a steady aim point in the windscreen.
• Most failures are fuel or ignition; run the restart flow deliberately, then squawk 7700 and call Mayday on your current frequency or 121.5.
• Fly it all the way down. A controlled arrival is survivable; a stall-spin from low altitude usually is not.