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# SpaceForest qualifies SF-1000 engine for Poland's PERUN rocket
- URL: https://sovereigntymonitor.eu/news/2025-08-04-spaceforest-sf1000-engine-qualification/
- Published: 2025-08-04T12:00:00.000Z
- Updated: 2026-10-16T12:00:13.000Z
- Description: Polish startup SpaceForest completed qualification testing of its SF-1000 hybrid rocket engine and thrust vector control system, a 46 second, 4,000 kilogram thrust firing clearing the way for PERUN's autumn 2025 suborbital launch from Ustka.
- Author: Reidar Balstad
- Tags: Defence and space, #news, #verified, #editor-read

Verified Editor-read [SpaceForest press release, 4 August 2025](https://spaceforest.pl/sf-1000-engine-completes-qualification-test-perun-rocket-gears-up-for-launch-from-ustka/?ref=sovereigntymonitor.eu)

**What it does not test.** It does not confirm PERUN has actually launched, only that its propulsion and steering system passed qualification.

**How this item counts.** This item is dated before the index starts on 1 January 2026, so it does not count in the [European Sovereignty Index](https://sovereigntymonitor.eu/sovereignty-index/).

**How this item was made.** Drafted by an AI system (Claude (Anthropic)) from the source cited above; read and approved by the editor on 2026-10-16\. [How the record is made](https://sovereigntymonitor.eu/method/#how-the-record-is-made)