The Engine-Out Glide, Best Glide Speed, and the ABCDE Flow You Run in the First Sixty Seconds After the Prop Goes Quiet

When your engine quits, the failure itself isn’t the emergency - what you do in the next few seconds is. The most reliable way to survive an engine-out is to run a memorized flow in the right order: Airspeed, Best field, Checklist, Declare, Execute (ABCDE). Pitch and trim for best glide speed first, pick the best reachable field second, and never let troubleshooting or the radio steal the altitude and attention you owe to flying the airplane.

The difference between a hangar story and a headline is rarely raw stick-and-rudder skill. It’s whether you had a flow and ran it promptly, without wasting altitude figuring out what to do. Here’s how to build that flow and run it in the first sixty seconds after the prop goes quiet.

What Should You Do the Instant the Engine Quits?

The moment the engine goes silent, your airplane starts trading energy - either altitude or airspeed. Your job is to choose, and you choose airspeed by pitching for best glide.

Best glide speed is the airspeed that gives you the most forward distance for every foot of altitude you lose. In a Cessna 172, it’s approximately 68 knots. Your airplane’s number will be different, and you should know it as automatically as your own phone number - look it up in your POH and say it out loud.

When the engine quits, the nose will drop and the airplane will feel like it’s falling. Every instinct says pull back hard. Instead, set the pitch attitude for your best glide number and trim for it, so you’re not fighting the yoke while your brain does the harder work. A trimmed airplane at best glide will fly itself down while you think.

Faster is not safer here. Let the speed build past best glide and you’ll descend more steeply and reach less far. Too slow and you sink like a stone toward a stall you can’t afford. Best glide is the sweet spot: pitch, trim, hold it.

How Do You Pick the Best Emergency Landing Field?

Once you’re gliding, decide where you’re going. This is the step pilots rush, and it’s the one that matters most - a beautifully flown glide into a bad field still hurts.

Look down and slightly behind you first, not just out front. Most pilots stare at the horizon and grab the first flat thing far ahead, and that field is often already too far to reach. The closest good option is frequently off your wing or a little behind you, where you can still turn to it.

Evaluate fields in this order: length first, then surface, then slope, then obstacles, then wind. Long and into the wind is ideal, but don’t get greedy - a slightly-into-the-wind field you can actually reach beats a perfect one you can’t. Good candidates include cornfields, plowed fields, pasture, or a wide road with no wires and no traffic.

Wires are the killer. You often can’t see the wires themselves, so look for the poles and plan to land well beyond them or well short of them - never right at them.

If you’re near an airport, that changes everything. When cruising cross-country, keep a running answer to one question: If it quit right now, where would I go? Ask that every few minutes and you’re never starting from zero. Then pick your field, commit, and fly to it.

How Do You Try to Restart a Failed Engine?

Only after you have a speed and a spot do you troubleshoot the cause - because you may be able to restart it. Use a memory flow, since you may not have time to find the printed checklist. An engine needs three things to run: fuel, air, and spark.

• Fuel: Is the fuel selector on a tank with fuel in it? Switch tanks. Fuel starvation - running one tank dry with fuel still in the other - is one of the most common causes of engine failure, and switching tanks has saved more airplanes than any heroic flying. Push the mixture in. Turn the fuel pump on if your airplane has one.
• Air: Pull carburetor heat. If carb ice choked the engine, this is your fix, and it may take a few seconds to clear - give it a moment.
• Spark: Cycle the magnetos. Try both, then try each one; sometimes one mag is dead and the other will run.

Fuel, air, spark - that’s the whole cause check in three words. If the engine catches, you’ve had a scare and a story. If it doesn’t, you stop troubleshooting. You have limited altitude, and you will not keep fiddling with knobs while your good field slides underneath you. You’ve made your best effort - now fly the airplane down.

When and How Should You Declare an Emergency?

Once you’ve made your best restart effort, get on the radio. Squawk 7700 on your transponder - the code that flags you as an emergency on every controller’s screen. Call on the frequency you’re already using, or go to 121.5, the emergency frequency someone is always monitoring.

The call is simple: “Mayday, mayday, mayday,” then who you are, where you are, what’s wrong, and what you’re doing. Engine failure, gliding down, and roughly your position. That’s it.

Here’s the honest part, and why Declare comes fourth and not first: if you’re low, busy, and out of time, the radio is the thing you let go of. Nobody on the ground can fly your airplane. Aviate, navigate, communicate - in that order, always. The call brings help to the scene and points rescuers at you; it will not land the airplane. Make it if you can, skip it if you must, and never let the microphone steal the attention you owe the flying.

How Do You Set Up the Airplane for the Landing?

Once you’re committed to the field, configure the airplane to protect the people inside it.

Before touchdown, secure the airplane to cut the fire risk: fuel selector off, mixture to idle cutoff, magnetos off, and master switch off - though leave it on long enough to get the flaps you want. You’re removing fuel and spark from the picture so that if you hit hard, you’re not sitting in something that wants to burn.

Then, crack the doors before touchdown. On impact a fuselage can flex just enough to jam a door shut - unlatch it first so it can’t trap you.

Finally, fly it all the way into the crash if it comes to that. Keep flying until the airplane stops moving. Aim between obstacles, touch down as slow as you safely can, wings level and in control. A controlled arrival into a fence at the slowest possible speed is survivable. A stall-spin from 200 feet, trying to stretch a glide to a better field, very often is not.

What Does the ABCDE Flow Look Like in the Cockpit?

Picture a Saturday afternoon at 3,500 feet, cruising home. The engine doesn’t quit dramatically - it sags. The sound changes, and your stomach knows before your brain does.

• A – Airspeed: Your hand pushes, you set the glide attitude and roll in trim. The airplane settles at 68 knots, stops falling, and starts gliding.
• B – Best field: You look down and to your left, and there it is - a big harvested field about a mile off, running roughly into the wind. You bank gently toward it and keep it in the windscreen.
• C – Checklist: Fuel selector to both or the other tank. Mixture rich. Carb heat out. Fuel pump on. Mags - both, cycle them. Nothing. You stop.
• D – Declare: “Mayday, mayday, mayday, 172, engine out, ten miles south of the field, gliding down.” Squawk 7700. Done.
• E – Execute: You’ve got the field made - maybe even a little high, which is exactly where you want to be, because high is fixable and low is not. Fuel off, mixture cutoff, mags off. Crack the door. Flaps as needed. You fly it all the way down, wings level, slow, straight ahead, into the stubble. And you walk away.

That’s the flow doing its job - not luck. A flow, run in order, without panic eating your altitude.

How Should You Practice Engine-Out Procedures?

Two pieces of homework will make you measurably safer.

First, memorize your best glide number and your engine failure flow today, before you fly again. The FAA Airman Certification Standards for both the private pilot and commercial certificates list emergency operations as an area of operation, and examiners look for exactly this: that you can identify a suitable landing area and fly a flow promptly and correctly without burying your head in a book.

Second, practice it at altitude. Next time you go up - with an instructor or solo at a safe altitude - pull the power at cruise, pitch and trim for best glide, and pick a field. Actually pick one and say it out loud. You’ll be surprised how the closest good field is almost never the one your eyes grabbed first. Running that “what-if” is the cheapest insurance in aviation.

The procedures here line up with your aircraft’s Pilot’s Operating Handbook (POH) and the FAA’s Airplane Flying Handbook. Read the emergency section of your own POH, because your numbers are yours, not anyone else’s.

Key Takeaways

• Run the ABCDE flow in order: Airspeed, Best field, Checklist, Declare, Execute. The failure is a fact; your response is the emergency.
• Pitch and trim for best glide immediately - about 68 knots in a Cessna 172. Know your own airplane’s number cold.
• Pick the closest reachable good field, checking down and behind you, and prioritize length, surface, slope, obstacles, and wind - watch for wires by spotting the poles.
• Attempt a restart with a fuel-air-spark memory flow, but stop troubleshooting once you’ve made your best effort - altitude is finite.
• Aviate, navigate, communicate - declare on 121.5 and squawk 7700 if you have time, then secure the airplane, crack the doors, and fly it all the way down.