TEMAC Site Survey

Started by GuyOReilly, March 20, 2025, 02:03:41 PM

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GuyOReilly

March 20, 2025, 02:03:41 PM
Here is the explanation for the 56-day frequency of update.

https://www.icao.int/airnavigation/information-management/Pages/AIRAC.aspx

The ICAO agreed that such a frequency would be appropriate and internationally agreed. The obscure reason on why exactly 56-day cycle was agreed to in 1960.
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