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Questions and Answers
A wind blowing from the southeast would be reported as which of these, rounded to the nearest 10°?
A wind blowing from the southeast would be reported as which of these, rounded to the nearest 10°?
- 180°
- 140° (correct)
- 90°
- 130°
What is the international standard unit for measuring wind speed?
What is the international standard unit for measuring wind speed?
- Kilometers per hour
- Knots (correct)
- Meters per second
- Miles per hour
In aviation reports, if the wind direction is changing rapidly, what term is used?
In aviation reports, if the wind direction is changing rapidly, what term is used?
- Fluctuating
- Shifting
- Variable (correct)
- Erratic
What word precedes wind speed and direction information if the measuring devices are not operational?
What word precedes wind speed and direction information if the measuring devices are not operational?
What does the term 'gusts' indicate in a wind report?
What does the term 'gusts' indicate in a wind report?
A wind from the west would be reported as what direction?
A wind from the west would be reported as what direction?
If a wind is reported as "wind 2 7 0 at 1 5 gusts 2 5" what does the reading '2 7 0' represent?
If a wind is reported as "wind 2 7 0 at 1 5 gusts 2 5" what does the reading '2 7 0' represent?
Considering magnetic north as the reference point, what direction is a 90° wind coming from?
Considering magnetic north as the reference point, what direction is a 90° wind coming from?
If a wind report mentions 'variable,' what does this refer to?
If a wind report mentions 'variable,' what does this refer to?
Approximately how many miles per hour is one knot?
Approximately how many miles per hour is one knot?
Flashcards
Wind Direction
Wind Direction
The direction from which the wind is blowing, measured in degrees relative to magnetic north, rounded to the nearest 10 degrees.
Wind Direction - North to South
Wind Direction - North to South
A wind blowing from north to south is a 360° wind.
Wind Direction - East to West
Wind Direction - East to West
A wind blowing from east to west is a 90° wind.
Wind Velocity
Wind Velocity
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Knots
Knots
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Estimated Wind
Estimated Wind
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Variable Wind
Variable Wind
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Gusty Wind
Gusty Wind
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Wind Reporting Format
Wind Reporting Format
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Pronouncing Wind Speed
Pronouncing Wind Speed
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Study Notes
Wind Direction and Velocity
- Airports measure wind direction relative to magnetic north, rounded to the nearest 10°
- Wind direction is measured in a 360° system
- Wind speed is measured in knots (approximately 1.15 miles per hour)
- Wind information is always preceded by "wind"
- Each digit of the wind direction and velocity is enunciated individually
- If instruments are faulty, "estimated" is used
- If wind direction is fluctuating, "variable" is used
- If wind speed changes rapidly, "gusts" and the peak speed are mentioned
Examples
- North wind, 15 knots: "Wind three six zero at one five"
- East wind, 10 knots with gusts to 25 knots: "Wind zero niner zero at one zero gusts to two five"
- Variable southeast wind, 12 knots with gusts to 35 knots: "Wind one five zero variable at one two gusts to three five"
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