Hydroplaning on landing

젖은 활주로에서 타이어가 물 위를 미끄러지는 하이드로플레이닝입니다. 제동·조향이 잘 안 들으니 러더로 방향 유지 + 역추력 + 무리한 제동 금지가 핵심. 그리고 다음 항공기를 위해 제동 상태를 보고합니다. 문법은 정도를 말하는 too … to 예요.

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1. Scenario

I was the First Officer of HL123 and the Pilot Flying, landing on a runway covered with standing water after heavy rain.

After touchdown, the aircraft started to hydroplane. The tires were skimming on the water, so the braking and the nosewheel steering were much less effective. The runway was too wet to brake normally.

I kept the aircraft straight with rudder, used reverse thrust, and let the anti-skid system do the braking instead of pressing the brakes hard. We used most of the runway, but we stayed on the centreline and slowed down safely.

Before we landed, we had asked the tower for the latest wind and runway condition; they reported the runway wet, with braking action medium from the previous aircraft, so we planned for a long rollout and relied on the anti-skid. After we vacated, we reported the braking action as poor — worse than the medium we'd been given — so ATC could pass the more cautious condition to the following aircraft.

We taxied carefully to the gate, and the runway was checked before the next landing.

2. At a Glance

English — Landing on a runway with standing water, the aircraft hydroplaned — the tires skimmed on the water, so braking and steering were poor. The runway was too wet to brake normally. The response is to keep straight with rudder, use reverse thrust, and let the anti-skid work rather than braking hard. Afterwards, we report the braking action (poor / medium / good) so the next aircraft knows the runway condition.

한국어 — 물이 고인 활주로에 착륙하니 하이드로플레이닝이 발생 — 타이어가 물 위를 미끄러져 제동·조향이 나빴습니다. 활주로가 너무 젖어 정상 제동이 안 됐어요. 대응은 러더로 방향 유지 + 역추력 + 무리한 제동 대신 안티스키드 활용. 이후 다음 항공기를 위해 제동 상태(poor/medium/good)를 보고합니다.

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3. Key Verbs

hydroplane

뜻: (물 위를) 미끄러지다

• After touchdown, the aircraft started to hydroplane.
• The tires hydroplaned on the standing water.

skim

뜻: 스치듯 미끄러지다

• The tires were skimming on the water.
• The wheels skimmed over the surface instead of gripping.

maintain

뜻: 유지하다

• I maintained directional control with rudder.
• We maintained the centreline as we slowed.

apply / use

뜻: (역추력을) 쓰다

• I used reverse thrust to slow down.
• We applied reverse thrust early.

report

뜻: 보고하다

• We reported the braking action as poor.
• We reported the runway condition to ATC.

slow

뜻: 감속하다

• We slowed down safely on the centreline.
• We slowed using reverse and the anti-skid.

vacate

뜻: (활주로를) 벗어나다

• We vacated the runway carefully.
• After we vacated, we reported the braking action.

monitor

뜻: 계속 확인하다

• We monitored the deceleration.
• We monitored our position on the runway.

lose

뜻: (효과를) 잃다

• We temporarily lost normal braking on the water.
• We did not lose directional control.

check

뜻: 점검하다

• The runway was checked before the next landing.
• We asked them to check the surface condition.

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4. Key Expressions & Collocations

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5. Vocabulary

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6. Sentence Frames

빈칸만 갈아끼우면 다른 착륙·제어 상황에도 그대로 씁니다.

• After touchdown, the aircraft started to ____. → After touchdown, the aircraft started to hydroplane.
• The runway was too ____ to ____. → The runway was too wet to brake normally.
• I kept the aircraft straight with ____ and used ____. → … with rudder and used reverse thrust.
• We let the anti-skid do the braking instead of ____. → … instead of pressing the brakes hard.
• We reported the braking action as ____ to ATC. → We reported the braking action as poor to ATC.

오늘의 표현 포인트 — "The runway was too wet to brake normally." "너무 ~해서 ~할 수 없다"를 too … to로 간결하게. 정도와 결과를 한 번에 말합니다.

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7. Common Mistakes → Better Phrasing

한국인이 자주 쓰는 틀리거나 약한 표현을, 시험에서 통하는 표현으로 바꿔 익히세요.

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8. Grammar Point — Degree (too … to)

"너무 ~해서 ~할 수 없다"는 too + 형용사 + to + 동사원형으로 말합니다.

• The runway was too wet to brake normally.
• The water was too deep to keep good steering.
• It was too late to go around once we had touched down.

핵심: too + 형용사 + to + 동사원형 = "~하기엔 너무 ~하다(그래서 못 한다)". 부정의 뉘앙스가 담겨 있습니다.

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9. Model Answer — Q1

"What happened to your aircraft? Explain the nature of the incident."

틀은 자유 — 무슨 일 → 어떻게 대처 → 결과 흐름이면 됩니다.

I was landing on a runway covered with standing water after heavy rain. After touchdown, the aircraft started to hydroplane. The tires were skimming on the water, so the braking and the nosewheel steering were much less effective — the runway was too wet to brake normally.

I kept the aircraft straight with rudder and used reverse thrust. Instead of pressing the brakes hard, I let the anti-skid system do the braking, so the wheels would not lock. We used most of the runway, but we stayed on the centreline and slowed down safely.

Before we landed, we had asked the tower for the latest wind and runway condition; they reported the runway wet, with braking action medium from the previous aircraft, so we planned for a long rollout and relied on the anti-skid. After we vacated, we reported the braking action as poor — worse than the medium we'd been given — so ATC could pass the more cautious condition to the following aircraft.

We taxied carefully to the gate, and the runway was checked before the next landing. The key was keeping directional control and not braking too hard on the water.

10. Model Answer — Q2

"How do you think ATC handled the situation? Could it have been handled differently?"

Q2 = ATC 평가로 의견 표현을 익히는 자리. 아래는 한 예시 — 외워서 그대로 쓰지 말고, 시작·마무리 표현은 자유롭게 바꿔 보세요.

For the most part, ATC stayed ahead of the situation. Before landing they gave us the latest wind and the previous aircraft's braking report, and afterwards they accepted our poorer braking-action report straight away and passed it to the following traffic — exactly what helps on a wet runway. They also gave us time to vacate carefully instead of rushing us off.

If I could change one thing, after that much heavy rain I would have liked the tower to get a fresh runway check, rather than pass on an older report. Even so, once we landed and reported, they acted on it quickly.

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11. Follow-up Q&A

1. Why not brake hard when hydroplaning? → Hard braking can lock the wheels on the water, so we let the anti-skid work and use reverse thrust instead.
2. How do you keep control when hydroplaning? → Mainly with rudder for directional control, staying on the centreline until the wheels grip again.
3. Why report the braking action? → So ATC and the following aircraft know the runway is poor and can plan for a longer landing or even divert.
4. What are the braking-action terms? → Good, medium, and poor — a simple way to tell ATC how the runway is behaving.

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12. Shadowing Sentences

각 문장을 3~5번 소리 내어 따라 하세요.

1. After touchdown, the aircraft started to hydroplane.
2. The tires were skimming on the standing water.
3. The runway was too wet to brake normally.
4. I kept the aircraft straight with rudder.
5. I used reverse thrust to slow down.
6. I let the anti-skid do the braking instead of braking hard.
7. We stayed on the centreline and slowed down safely.
8. After we vacated, we reported the braking action as poor.
9. We passed the runway condition to ATC for the following traffic.
10. The runway was checked before the next landing.

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