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  • BSI Flex 1903 v1:2023-08 formally released

    This is an interactive version 1 of BSI Flex 1903 v1.0:2023-08. The aim of the standard is to create a lexicon of standard terms and acronyms used in this sector.

    We welcome your engagement and comments on this version to help inform the development of the next version. Comments on clauses or terms in the standard should be made via the BSI Standards Development Portal. We would also welcome general feedback including what terms could be considered for future versions and these can be made through our dedicated feedback page.

distributed operations



  • Definition

    type of operation where the remote pilot in command (RPIC) (3.1.76) is not physically in the same local area as the uncrewed aircraft take-off and landing zone (TOLZ) (3.1.81) and is reliant on input from other flight crew, sensor or instrumentation to assess relevant operating conditions prior to and during flight.


    NOTE: “Local operating conditions” include items such as current local weather or the status of the “take-off and landing zone (TOLZ)(3.1.81) .

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