# Anduril static-fires a solid rocket motor built with RTX for air-to-air weapons

Canonical page: https://technooptimist.io/stories/anduril-static-fires-a-solid-rocket-motor-built-with-rtx-for-air-to-air-7ab30eb0
Date: 7 Oct 2025
About: [Anduril Industries](https://technooptimist.io/companies/anduril.md) · [Solid rocket motors (McHenry, Mississippi)](https://technooptimist.io/manufacturing/solid-rocket-motors.md)
Original source: https://www.tectonicdefense.com/anduril-tests-solid-rocket-motor-for-air-to-air-weapons-with-rtx/

Anduril static-fired a solid rocket motor it developed and built with Raytheon's Advanced Technology business for air-to-air weapons, with the Air Force Research Laboratory taking part. The motor uses a highly loaded grain, which packs significantly more propellant into the casing.

## Key facts

- The grain design draws on technology from Naval Air Weapons Station China Lake.
- The Mississippi plant is to reach 6,000 motors a year by end-2026.
- Separately, the Army chose Anduril in March 2025 for a 4.75-inch motor.

---

The Techno Optimist tracks every frontier of technology, program by program: https://technooptimist.io/ (a Markdown version of any page: add .md to its URL; site map for agents: https://technooptimist.io/llms.txt).
Data API (JSON, realtime stream): https://technooptimist.io/developers. People read 5 pages free, then Reader $10/month; these Markdown pages are open to agents.