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Power-Off 180 Accuracy Approach and Landing

The engine quits abeam your touchdown point and the runway is right there off the wingtip. The whole maneuver is whether you can spend the altitude you have precisely enough to land on a spot you picked in advance.

Takeoffs, Landings and Go-Arounds — FI.VII.O

Why you fly it

An engine failure in the traffic pattern gives you the best odds and the least time. You are low, you are close, the field is already in sight, and the next forty seconds are all decision and no deliberation. The power-off 180 is where you rehearse those forty seconds with pavement underneath you and an instructor in the right seat.

The maneuver itself is short. Throttle to idle abeam the touchdown point, a gliding approach flown with the power at idle the rest of the way, and a touchdown at or within 200 feet beyond a spot you named before you started, aligned with the centerline and with no side drift. The standard is not you made the runway, it is you made the runway where you said you would.

The habit outlasts the checkride. If your downwind is so wide that a power-off glide cannot reach the pavement, you have quietly accepted that an engine failure there ends off-airport. After a few of these, you stop flying that pattern.

Energy is altitude plus airspeed

Once the throttle is closed you have a fixed amount of energy and no way to add any. Altitude and airspeed are the two forms it comes in, and best glide speed is the setting that converts one into the most distance. Faster than best glide, parasite drag eats the difference; slower, induced drag does. Either way you are carrying more drag than you need and giving away glide distance you cannot get back. Get the number from your POH; it is published at maximum weight, and a lighter airplane glides farthest a little slower.

From there, altitude only goes one direction; what you control is the rate. Clean and on speed descends slowest, flaps steepen it, and a slip steepens it a lot. That asymmetry is the whole plan: arrive with a little too much and give it away deliberately, because if you arrive with too little there is nothing to buy it back with.

How you use the flaps is a matter of technique and airplane. Some instructors add a notch at a time and never take any away. Others put in more, earlier, and treat retracting a notch as the correction for being low — a technique that buys you one correction at the cost of a margin, since the airplane settles as the lift goes away, and one that plenty of instructors will not teach at all. Fly whichever your instructor teaches you and do not invent the other one on the day. What both agree on is the order: partial flaps early if airspeed permits, landing flaps only once the runway is clearly made.

The PAPI is not your glidepath here. It shows a roughly three-degree path flown with power, and a power-off glide is steeper than that, so a full red indication partway down does not mean anything is wrong. It still tells you what it always tells you — that the approach path is clear of obstacles — and it becomes your reference again the moment you add power or go around. For the accuracy landing itself, fly the spot, and watch it in the windscreen: a spot that creeps up the glareshield is one you will land short of, a spot that sinks is one you will overshoot, and a spot that sits still is a spot you will hit.

Flying it

At a towered field, ask for the short approach first — this is not a normal pattern, and the controller is spacing you as though it were. Then:

1. Abeam the touchdown point, throttle to idle and pitch immediately for best glide. Pitch first, everything else after.
2. Configure in stages, not all at once. Partial flaps as airspeed permits; landing flaps only when the runway is clearly made. In a retractable, the gear goes down when you are certain of the field — and set yourself a hard gate, a position or an altitude, where it goes down regardless, so that it is never simply forgotten.
3. Keep the spot in sight. Turn base when the picture says to, not where the pattern says to.
4. Fly the turn to final smoothly and at a moderate bank. Many pilots fly the whole thing as one continuous, medium-banked turn from abeam to final; a conventional base leg and final flown power-off meets the standard just as well, and neither the ACS nor the Airplane Flying Handbook prefers one over the other. Whichever you fly, keep the bank moderate — steep bank costs you vertical lift and raises your stall speed where you can least afford either.
5. Correct early and in small amounts. High is the easy case: slip, or take the next notch of flaps. Low is the case to respect. If your technique is to retract a notch to stretch the glide, do it early, do it gently, and expect the airplane to settle as the lift goes away — retracting flaps low and slow is the most consequential item on this list, and some instructors teach that you simply do not do it. Never trade airspeed for distance.
6. Round out and trade the remaining airspeed for the last of the descent, so the wheels arrive at the spot rather than short of it or long.
7. Hold the centerline and keep flying until it stops.

The crosswind correction is the one you already use: crab or wing low, no side drift at touchdown. Knowing the component before you pull the power makes the base turn less of a surprise.

Reading the wind and the air

Wind moves the whole geometry. Landing into a headwind your glide covers less ground on final, and that same wind pushes you along downwind, so it is easy to sail past the abeam point before you notice. Both effects say the same thing: keep it tight and turn base earlier than feels normal. A tailwind on final flattens the ground track instead. Take the number off the ATIS or the METAR before you taxi, so you are confirming a plan in the pattern rather than forming one.

Air that is moving on its own moves you too: a thermal or a patch of sink changes your descent rate without your having done anything, one more reason to trust the spot in the windscreen. At high density altitude the same indicated glide speed is a higher true airspeed, so everything happens faster and you float farther in the flare.

What goes wrong

Most of it is decided before the throttle ever comes back. A downwind flown too far out, or overextended because a tailwind carried you past the abeam point, sets up an approach no amount of skill on final recovers. Uncorrected drift on base does the same thing in a smaller way.

The second family is trying to stretch. Raising the nose below best glide steepens the descent instead of flattening it, and walks you toward a stall at the worst possible altitude. Its close relative is the skidding turn — bottom rudder to hurry the airplane around to final — the standard recipe for a base-to-final spin. If the geometry is wrong, fix the geometry.

The third is configuring on hope: landing flaps in, or the gear down, before you know the field is made, and then finding out it is not. The staged order in step 2 exists to prevent exactly this. Its mirror image is the retractable flown so absorbed in the glide that the gear never goes down at all, which is why the gate matters as much as the sequence.

Then there is cheating. The throttle is for clearing the engine, not for extending the glide. Forcing the airplane onto the runway to avoid overshooting the spot is the same instinct pointed at the ground: you trade a missed target for a bounce or a side-loaded gear leg. If the approach is unstable, go around. Missing the standard costs you a task; the alternatives cost more.

Where you meet it next

This is a takeoffs, landings and go-arounds task on the single-engine airplane commercial practical test, and on the flight instructor ride you teach it as well as fly it. It is not a task on the multiengine commercial test. It is not the only landing with a spot attached either — the short-field approach and landing asks for a touchdown at or within 100 feet beyond a specified point, which is the tighter tolerance of the two. What makes the power-off 180 different is the idle throttle from the abeam point onward: it is the only accuracy landing you fly with no engine to fall back on.

That is also why it travels. It shares its skill set with the emergency approach and landing — the same problem without a runway underneath it — so an examiner reads your power-off 180 as evidence about how that one would go. The short-field approach and landing and the slip to a landing are its nearest neighbors in the ground school, and worth flying in the same lesson. Then you meet it again on every ordinary landing you fly afterward, because the habit it installs is a small one: pick a spot, then watch whether it moves.