# Electra.aero and Bristow Group EL9 Launch Agreement revision history

Append-only Arc G field-change log. Forward-only honesty: events accrue from Arc G adoption.

Partnership: [Electra.aero and Bristow Group EL9 Launch Agreement](/partnerships/electra-aero-and-bristow-group-el9-launch-agreement.md)

## Recorded posture

- First recorded event: 2026-07-21
- Last material change: 2026-07-21
- Material event count: 1
- Editorial event count: 0

## Forward-only note

Arc G is forward-only. The event log accrues from the Arc G adoption point. Fields with no events post-baseline equal the current cached value and are not independently verified at any prior date.

_Canonical URL: /partnerships/electra-aero-and-bristow-group-el9-launch-agreement/history. REST: /v1/partnerships/1bd6f26b-045a-47d4-86f1-c5fe2b161989/history. HTML: [/partnerships/electra-aero-and-bristow-group-el9-launch-agreement/history](/partnerships/electra-aero-and-bristow-group-el9-launch-agreement/history)._