flight level
as defined in Commission Implementing Regulation (EU) 2017/373 of 1 March 2017 laying down…
a surface of constant atmospheric pressure which is related to a specific pressure datum, 1 013,2 hectopascals (hPa), and is separated from other such surfaces by specific pressure intervals
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Also defined in
- Regulation (EC) No 549/2004 of the European Parliament and of the Council of 10 March 2004 laying down the framework… 32004R0549, Article 2, point (24)
a surface of constant atmospheric pressure which is related to the specific pressure datum of 1013,2 hectopascals and is separated from other such surfaces by specific pressure intervals