Browse Standards AIR8639
WIP 2024-10-10

Electrified Propulsion Aircraft Ingestion AIR8639

This Aerospace Information Report (AIR) provides guidance to assess an installed subset of electrified propulsion architectures as defined by AIR8678 against the existing aircraft engine and aircraft airworthiness standards for environmental and foreign object ingestion. This release covers aircraft types, and associated engines, for CS 23 and Part 23 level 1&2, CS VTOL, and FAA Powered Lift (21.17b) both ducted and open rotor. This AIR defines the relative ingestion threats, susceptibilities, and possible system impacts that must be assessed for electrified propulsion systems at the aircraft level. Although these electrified aircraft operate in the same operating environments as existing aircraft, the electrified propulsion system susceptibilities and resulting failure consequences may be unique to electrified propulsion. This document defines the similarities and differences between conventional and electrified propulsion architectures.
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