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Turns Around a Point

A 360-degree turn that keeps the same distance from one spot on the ground. The airplane flies through the air; you are being graded on where it went over the ground, and the wind will not let those two agree.

Ground Reference Maneuvers — FI.X.C

Why this maneuver exists

Nothing about circling a silo is operationally useful on its own. Every skill in it is borrowed from somewhere you already fly. Holding a ground track against drift is the traffic pattern. Varying bank because groundspeed changed is base to final on a windy day. Dividing attention between a point outside, the altimeter, and the airplane's attitude is what low-altitude flying asks of you constantly. This is the same work, done slowly enough that an instructor can watch you do it.

It is flown between 600 and 1,000 feet AGL, and the Airplane Flying Handbook chooses that band for two reasons at once: low enough that drift is obvious out of the window, high enough that an engine failure still leaves you a field to reach. Neither end of it is spare margin. Low-altitude maneuvering flight is one of the categories that fills accident reports, and it fills them with pilots who were flying deliberately at the time. Give the practice area the same seriousness you give the pattern, because the corrections you are building here are the ones you will make in the pattern, where there is less room still.

What the wind is doing to your circle

Hold one bank angle at one airspeed and the airplane traces a circle through the air. Over the ground it traces nothing so tidy. The wind displaces the track for as long as the turn lasts, and because that displacement keeps accumulating you never come back to where you started. The Airplane Flying Handbook says only that the uncorrected track comes out distorted and pushed downwind, and that is as far as the description should go.

Bank angle at a given airspeed produces a fixed rate of turn — degrees per second. Radius over the ground depends on how fast the ground is going by. So the variable that sets the bank you need is groundspeed, and groundspeed changes continuously all the way around.

Flying directly downwind, with the wind behind you, groundspeed is highest and you need your steepest bank to keep the radius from opening up. Flying directly upwind, into the wind, groundspeed is lowest and the bank is shallowest. Between those two extremes the bank is not held and then changed — it is rolling continuously, shallowing through the upwind half and steepening through the downwind half.

At the two points abeam the wind, where the wind is straight across your flight path, you carry your largest wind correction angle. The nose is visibly not pointed along the track you are flying. That is correct, and learning to accept it is most of the lesson.

Setting it up

Pick a point that is prominent and isolated — a lone tree in a field, a silo, the intersection of two roads. Small enough to be a point rather than an area, distinct enough that you will not lose it against the background halfway around. Put it somewhere you could glide to a landing from if the engine quit, and stay away from livestock and from anyone on the ground with no reason to be circled; the handbook asks that of you as airmanship. The regulation is a separate obligation and it does not relax at maneuvering altitude. Under 14 CFR 91.119(b), over a congested area you need 1,000 feet above the highest obstacle within a 2,000-foot horizontal radius; under 91.119(c), elsewhere you need 500 feet above the surface, and over open water or sparsely populated areas that becomes a 500-foot standoff from any person, vessel, vehicle or structure.

The distance you choose from that point sets the whole maneuver, because it sets how steep the downwind side has to be. The Airplane Flying Handbook puts the limit at roughly 45 degrees of bank at the steepest point, and that is a ceiling rather than a target. Too close and the downwind side becomes a steep turn at low altitude; too far and there is nothing to correct and nothing to see. Airspeed, power and configuration come from your POH — this is not a maneuver with a universal number attached.

1. Clear the area with clearing turns, and look for traffic below and behind.
2. Establish your altitude, airspeed and power, and trim it off.
3. Fly to the point on a downwind heading, abeam it at your chosen distance.
4. Roll in as you arrive abeam — steepest bank first, and let it shallow from there.

Flying it

Eyes are mostly outside, on the point and on your distance from it. You are not watching the bank; you are watching the radius and letting the bank be whatever holds it. Scan inside briefly and often enough to catch altitude and airspeed drifting, then get back out.

Hold altitude with pitch and trim, not with attention. As the bank steepens the vertical component of lift drops and the nose wants to go down; as it shallows you will balloon if you leave the back pressure in. Keep the ball centered the whole way around, through every one of those bank changes. Roll out on the heading you entered on, wings level, still at your altitude.

Where it goes wrong

The dangerous error is the one that looks like helpfulness. You notice the airplane drifting wide of the point, the bank is already as steep as it ought to get, and rather than let the circle come out wrong you press bottom rudder to bring the nose around. That is a skid — and a skidding, banked airplane close to the ground, with the nose being held up, is the exact setup that turns a stall into a spin with no altitude left to recover. This is base to final, rehearsed. The rudder does what coordination asks of it and nothing else, the whole way around.

The answer is not more bank either. Forty-five degrees on the downwind side is the ceiling, and needing more than that is not a control problem to muscle through — it is the maneuver telling you that the radius you picked is too small for the wind you have. Widen out and fly the rest of the circle at a distance the airplane can actually hold, or roll out, fly away from the point, and re-enter downwind farther from it. A circle that came out too big is a debrief item. Neither of the other two ways out of that corner is.

The ordinary errors are more forgivable. Correcting in steps instead of continuously, so the track is a series of arcs rather than a circle. Fixating on the point until the altimeter has quietly given away 150 feet. Over-controlling — grabbing at bank changes that should be a steady, unhurried roll. Entering somewhere other than downwind, which puts you in the wrong part of the correction from the first second.

Most of these come from having no picture of where the wind is before you start. Know the wind direction on the way to the practice area, and the maneuver stops being a surprise you react to.

The standards

Turns around a point is a Private Pilot ACS task, sitting inside Ground Reference Maneuvers with the rectangular course and S-turns, and it comes back on the flight instructor test, where you fly it and teach it in the same breath. It is not a commercial maneuver; eights on pylons takes its place there. The tolerances are altitude ±100 feet and airspeed ±10 knots, with wind drift correction adequate to hold the radius constant, coordinated flight throughout, and attention divided properly between the ground track and airplane control. The examiner is watching your head as much as the airplane.

Where you meet it next

Every traffic pattern you fly afterward is this maneuver cut into straight segments and corners, and the base-to-final turn is the piece of it that kills people. As a CFI applicant you fly it from the right seat while talking through it, which is the real test of whether the corrections have become automatic.

Its siblings ask the same question in different shapes. The rectangular course is this maneuver flown as a traffic pattern with the runway taken away; S-turns across a road split it across a line instead of wrapping it around a point; eights on pylons answers it with altitude instead of bank. Steep turns are where 45 degrees stops being alarming, with room underneath you while you get used to it. Before any of them, know the wind you are working against: it is in the METAR, and the crosswind calculator resolves it for a single heading, where out here you fly against all 360 of them. The rest of the maneuvers are in the lesson index.