ED-271A

ED-271A | Minimum Aviation System Performance Standards For Detect And Avoid Traffic For Remotely Piloted Aircraft Systems In Airspace Classes A-G Under IFR

WG-105 SG-1
IAS
November 2024

This document functions as a MASPS for the Detect & Avoid [Traffic] system (DAA) for Remotely Piloted Aircraft Systems (RPAS) operating in certified category in class A to G airspaces under Instrument Flight Rules (IFR). This standard specifies a proportionate risk based standard for Detect & Avoid against conflicting traffic which will support a performance based regulation for non-segregated RPAS operation.
Revision A supersedes ED-271 ‘MASPS for Detect And Avoid [Traffic] for Remotely Piloted Aircraft Systems in Airspace Classes A-C under IFR’ (May 2022) which has been updated to expand from operations in airspace classes A-C to cover all airspace classes A-G. Main changes are:
– Updated alerting and guidance requirements for RWC,
– Assumed RP behaviour based on RWC alerting and guidance,
– Performance requirements for RWC,
– Harmonization with established ICAO Risk Ratios and Loss of Well Clear ratios.

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Previous Versions

ReferenceDateStatus
November 21, 2024latest
April 15, 2022historical
June 30, 2021historical
ED-103A
November 25, 2017
latest
ED-100
August 1, 2000
historical
ED-239
August 12, 2016
latest
ED-250
December 19, 2017
latest
ED-273
August 23, 2021
latest
ED-263
June 1, 2019
latest