ED-289 Change 1 -- Accessible Energy in Battery Systems for eVTOL Applications

What it is

EUROCAE ED-289 Change 1 provides guidance and minimum requirements for state observers and state predictors used to determine accessible energy in battery systems for eVTOL applications.

Why it matters

For electric VTOL aircraft, knowing how much usable energy remains is tied to performance, dispatch, reserve strategy and safe completion of the flight. The standard addresses the equipment functions used to make that estimate.

Primary source: EUROCAE ED-289 Change 1