Your first flight in moving air feels busy. The wing nods forward, tugs back, and one side goes soft for a moment. The instinct is to grab the brakes and hold them down. Don’t.
Feel the wing through the brakes
In moving air, keep a light, constant contact on both brakes: about the weight of your arms in one manual, about 20 cm7.9 in of brake in another2. On that second wing, 20 cm7.9 in is already its minimum-sink setting3; in smooth air, hands up, just feeling the lines, is enough. Hands fully up with slack lines feel little; hands held deep feel everything as heavy. The
| You feel | What to do |
|---|---|
| Pressure goes light; the wing moves ahead | It is pitching forward: brake briefly4 |
| Pressure rises; you swing forward under it | It is dropping back: let the brakes up4 |
| One side goes soft | Apply that brake promptly; release as pressure returns2 |
| Heavy brakes, fading wind noise | Close to the stall: ease up5 |
| Heavy, then suddenly light | The wing has stalled: hands straight up at once5 |
You feel the air through the harness too: one side of the seat lifts or drops, or you go light, then heavy. Brake pressure and what comes before a stall have more.
Pitch: keep the wing overhead
If the wing
Timing matters more than strength. Brake as the wing starts forward, and release as it comes back overhead; held longer, the brake pushes it behind you and starts the next swing. Timing the damping input explains the pendulum.
Figure: The same bumps flown twice. Dashed, hands quiet: the wing swings well ahead and behind. Solid, flying actively: let it fly as it drops back, brake as it comes forward, release as it returns overhead.
Figure: A surge damped in one small swing. Watch the brake trace against the wing’s position.
Roll: stay centred, steer with your body
The pendulum also swings sideways, in
If the air pushes the wing into a turn, hold your heading with weight shift away from the turn and a little brake on the side away from it6. A wider
Anticipating collapses
Expect rough air at the edges of thermals, in
The warnings are a wing surging ahead and pressure going soft. Catch them early: brake promptly on the soft side, then release as soon as normal pressure returns2. Once a side has actually collapsed, the job changes. The wing turns towards the collapsed side, so you stop the turn with weight shift away from it and brake on the open side11.
Active flying makes collapses rarer; it does not stop them all. Every wing collapses eventually12. Asymmetric collapse covers the full response.
Safety-critical Fly the wing first
If part of the wing collapses or it turns unexpectedly, stop the turn, look where you are going and fly away from the ground and other pilots. Only then deal with the cause. Pilots who fixate on the problem miss the wing turning back towards the hill6. Do not over-brake the open side: a part-collapsed wing stalls more easily11.
How much, how little
Too little, too late, and a surge runs far ahead of you. A wing far in front meets the air at a low
Too much is just as bad. Holding deep brake in rough air takes you towards the stall zone5. Late, oversized inputs feed the swing instead of damping it, a
On a school wing most small movements need nothing from you. Class A wings are built for maximum passive safety and very forgiving behaviour15. Many instructors sum it up as “as little as possible, as much as necessary”.
Flying actively through a bump
Keep a light contact on both brakes.
Cue About the weight of your arms.
Why You feel pressure changes early2.
As the wing drops back and the pressure rises, let the brakes up.
Cue You swing forward under the wing.
Why It needs speed to come back overhead4.
As it starts forward and the pressure goes light, brake smoothly and briefly.
Cue The surge stops not far in front of you.
Why A well-timed input stops the swing early4.
Release as it comes back overhead.
Cue Normal pressure; the wing settles above you.
Why Holding on pushes it behind you again.
If one side goes soft, brake it promptly, then let it up.
Cue The pressure returns.
Why You restore that side before it collapses2.
Then quiet hands again.
Cue The wing stays put; nothing to do.
Common mistake Pumping the swing
- Symptom
- Each surge is bigger than the last.
- Cause
- Inputs half a swing late, braking as the wing falls back and releasing as it comes forward.
- Fix
- Stop, go back to a light contact and let the wing settle, then try smaller, earlier inputs4.
Common mistake The death grip
- Symptom
- The wing feels slow and mushy, the brakes heavy, and it surges hard when you finally let go.
- Cause
- Holding brake on through the bumps, out of nervousness.
- Fix
- Release as soon as the wing is back overhead, and keep normal flying in the upper brake range5.
Common mistake Fighting every movement
- Symptom
- Busy hands, a rocking wing and a tiring flight.
- Cause
- Reacting to small movements a school wing would settle by itself.
- Fix
- Keep the contact, and act only on clear surges, soft sides or swings15.
Instructor's note Learn the timing with height
Pitch exercises are flown when your instructor sets them up, with plenty of height4. SafePro suggests basic elements of an
Instructor's note A bumpy final: hands up or a touch of brake?
Manufacturers differ. Nova suggests about 20% of brake travel through a turbulent approach, for feel; Ozone keeps trim speed but flies actively all the way down17. Both say never fly the approach slowly. Follow your instructor’s briefing.
Standards differ When active flying is taught
Common ground: Every system builds pitch and roll control in steps, from the launch onwards.
- USHPA (USA)
- P1 launches need pendulum control18; P2 adds reverse inflations with surge damping19. Stage 3 of SafePro equals P3 plus the Turbulence skill20.
- BHPA (UK)
- Club Pilot training has a phase on instability and emergencies, including active flying21.
- APPI (international)
- Pitch and roll control is part of the Adventure level22.
- FAI/CIVL SafePro (international reference)
- Stage 3 is called Active Flying: damping pitch and roll is a skill, shown on at least 3 successful flights2324.
Summarised from each body’s published material, which changes over time. Check the current official documents and follow your school.
Questions students ask
Do I need to fly actively in smooth air?
Hands up, just feeling the lines; there is little to do. A school wing settles small swings by itself15.
Is doing nothing better than doing the wrong thing?
For small movements, usually yes; over-reacting is a bigger danger2. But do catch clear surges and soft sides.
Will active flying stop every collapse?
No. It makes them rarer, but every wing collapses eventually12. That is why you also learn the first response.
Key points
- Keep a light, constant contact; the brake pressure is your main instrument.
- Wing ahead, pressure light: brake briefly. Wing behind, pressure heavy: let it fly.
- Brake as it starts forward, release as it returns overhead. Timing beats strength.
- Roll: stay relaxed and centred; small inputs, weight shift away from any turn.
- Expect rough air at thermal edges, sink, lee and near the slope; bar off, room to spare.
- If it collapses, fly the wing first. As little input as possible, as much as necessary.