Rocket Lab Accelerates Hypersonic Innovation with Scramjet-Powered Aircraft Test Flight

Rocket Lab Corporation (Nasdaq: RKLB), a leading provider of launch services and space systems, is preparing to execute another cutting-edge test mission that underscores its critical role in restoring the United States’ hypersonic capabilities. On February 12, 2026, the company announced its next dedicated flight—designated “Cassowary Vex”—scheduled for late February from Wallops Island, Virginia. This mission marks the fourth advanced hypersonic test deployment Rocket Lab has conducted in under six months, reflecting the company’s commitment to accelerating the nation’s defense innovation through commercially viable solutions.

HASTE Platform Deploys Scramjet-Powered Aircraft

The upcoming launch will carry DART AE, a scramjet-powered aircraft developed by Australian aerospace engineering firm Hypersonix, into flight on Rocket Lab’s HASTE vehicle. HASTE—a specialized hypersonic test platform—enables developers to conduct experiments at velocities reaching Mach 20, providing unprecedented precision over flight profiles and environmental conditions. The scramjet technology powering the DART AE represents a significant leap in hypersonic propulsion, offering sustained combustion capabilities at extreme speeds that traditional jet engines cannot achieve. This scramjet-based approach transforms how engineers test advanced aircraft systems and validates next-generation defense technologies.

The mission, officially dubbed “That’s Not A Knife,” is a collaborative effort between the Department of War’s Defense Innovation Unit (DIU) and Hypersonix. By integrating the scramjet-powered platform with HASTE’s commercial launch infrastructure, the partnership demonstrates how private-sector innovation can address critical defense requirements while reducing operational costs and accelerating the testing timeline.

Strategic Significance for U.S. Defense Capabilities

This fourth hypersonic mission in six months illustrates Rocket Lab’s impact on America’s strategic defense landscape. The commercial speed, reliability, and technical sophistication of the HASTE platform have enabled unprecedented testing frequency—a capability no other provider currently matches globally. Each successive scramjet test flight strengthens the nation’s competitive advantage in hypersonic technology development, a field where sustained innovation directly correlates with military readiness and space superiority.

The DIU’s selection of Rocket Lab underscores confidence in the company’s execution. By lowering financial barriers and expanding testing cadence, HASTE removes critical bottlenecks that previously constrained hypersonic research. This commercial model allows the U.S. and its allies to conduct more missions, gather more data, and iterate faster—essential advantages in the hypersonic arms race.

Commercial Edge in Advanced Propulsion Testing

The scramjet-powered DART AE represents more than an incremental technology upgrade; it signals a shift in how defense innovation operates in the commercial space era. Hypersonix’s scramjet design, combined with Rocket Lab’s launch precision, creates a testing environment unmatched by competitors. The ability to conduct multiple hypersonic missions rapidly—each carrying different scramjet configurations or payload variants—accelerates the development cycle for next-generation defense systems.

Launch Details and Next Steps

Mission: Cassowary Vex
Launch Vehicle: HASTE (“That’s Not A Knife”)
Payload: DART AE scramjet-powered aircraft (Hypersonix)
Launch Window: February 2026
Launch Site: Launch Complex 2, Virginia Spaceport Authority’s Mid-Atlantic Regional Spaceport, Wallops Island
Customers: Defense Innovation Unit (DIU) & Hypersonix

Rocket Lab’s focus on maintaining this rapid test cadence demonstrates how commercial space operators are reshaping defense innovation. With the scramjet-powered DART AE positioned for deployment, this mission reinforces Rocket Lab’s leadership in hypersonic capabilities and affirms the company’s role as a critical enabler of U.S. defense superiority.