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Rear Admiral Sir Francis Beaufort's Original Scale
(1805)
- Truncated for Kiters -

Small wind gauges or pocket anemometers are exceedingly useful for ground level wind measurements

Wind Speed Conversion Table
Beaufort MPHM/SKnotsKm/T
Force 11 - 30.3 - 1.61 - 31 - 5
Force 24 - 71.7 - 3.24 - 66 - 11
Force 38 - 123.3 - 5.47 - 1012 - 19
Force 413 - 185.5 - 7.911 - 1620 - 28
Force 519 - 248.0 - 10.717 - 2129 - 38
Force 625 - 3110.8 - 13.722 - 2739 - 49
Sir Francis Beaufort's Original Scale from 1805 (truncated for kite flying):
Force 0 Calm
"Calm: smoke rises vertically"
Force 1 Light air
"Direction of wind shown by smoke drift but not by wind vanes"
force 2 Light breeze
"Wind felt on face; leaves rustle; ordinary vane moved by wind"
Force 3 Gentle breeze
"Leaves and small twigs in constant motion; wind extends light flag"
Force 4 Moderate breeze
"Raises dust and loose paper; small branches are moved"
Force 5 Fresh breeze
"Small trees in leaf begin to sway; crested wavelets form on inland waters"
Force 6 Strong breeze
"Large branches in motion; whistling heard in telegraph wires; umbrellas used with difficulty"

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