X-Bow Systems -- a New Mexico-based start-up that claims to bring 21st-century manufacturing technologies and know-how to solid-rocket motor production -- has answered the Pentagon's call for a potential new domestic supplier of boosters needed to power Army and Navy plans to scale production of long-range hypersonic strike weapons. The company, pronounced “Cross-Bow” Systems, recently responded to an October request for information by the Pentagon which is exploring the possibility of qualifying a new solid-rocket motor supplier to increase industrial...