The low-flying aircraft sign shows an airplane graphic inside a red warning triangle.
It is located near airfields or flight paths to warn drivers of low aircraft altitude and potential sudden noise hazards.
What this sign means
This sign alerts road users that aircraft fly at low altitudes directly over or adjacent to the carriageway.
- Red warning triangle
- Black airplane silhouette graphic
- Warns of sudden overhead engine noise and visual distraction
What to do when you see it
Keep your concentration fully on the road. Do not let low-flying aircraft distract you or cause you to brake suddenly.
- Maintain normal vehicle control and speed
- Expect sudden engine noise near airfield boundaries
- Do not look up or divert your attention from driving
How this sign is tested
DVSA theory tests evaluate driver distraction management, hazard awareness, and composure under sudden loud conditions.
Common mistakes
Distracted driving caused by looking up at aircraft rather than focusing on traffic and the road ahead.
Test yourself on this one
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Practise road sign questionsFrequently asked questions
Why is a warning sign necessary for low aircraft?
Sudden overhead aircraft noise can startle unprepared drivers and cause unexpected reactions.
Are there similar signs for helicopters?
Yes, a similar warning triangle displaying a helicopter silhouette exists for helipads.
Should I slow down when seeing a low-flying aircraft sign?
Maintain normal, safe driving speeds without sudden changes unless required by actual traffic conditions.