Hot fire of rocket motor featuring Highly Loaded Grain technology. Photo: Ursa Major
By Cal Biesecker |
@calvinb21
2 hours ago |
05/08/2025

Ursa Major on Wednesday said it conducted multiple static fires of a 5-inch solid rocket motor (SRM) packed with propellant in a configuration that enables longer ranges and different thrust profiles, internally validating the startup’s proprietary manufacturing…

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