Theses are not for real world reference - flight sim only!

Beaufort Wind Force Scale

One of the first scales to estimate wind speeds and the effects was created by Britain's Admiral Sir Francis Beaufort (1774-1857). He developed the scale in 1805 to help sailors estimate the winds via visual observations.The scale starts with 0 and goes to a force of 12. The Beaufort scale is still used today to estimate wind strengths.

Beaufort Wind Force Scale
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