Launch Window Set for Flight of Australian Hypersonic Flight Pioneer

Brisbane, QLD, 13 February 2026 – Australian hypersonic flight pioneer Hypersonix Launch Systems is pleased to announce the launch window for a landmark flight test that will move sustained hypersonic flight closer to operational reality.

Founded in 2019, Hypersonix is focused on developing a new class of autonomous hypersonic aircraft that deliver sustained flight at extreme speed, range and altitude. Its proprietary SPARTAN scramjet engine is 3D-printed, reusable and capable of reaching speeds of Mach 5+ with no moving parts. 

The Cassowary Vex mission, launching on “That’s Not A Knife” with Rocket Lab, a global leader in launch services and space systems, is scheduled to launch no earlier than late February from Rocket Lab Launch Complex 2 within the Virginia Spaceport Authority’s Mid-Atlantic Regional Spaceport on Wallops Island, Virginia. The exact date and timing of the launch will be announced within 24 hours of the mission’s launch window opening.

The flight will see Hypersonix deploy DART AE, a 3.5-metre, scramjet-powered hypersonic aircraft designed to validate advanced propulsion, materials, sensors and guidance systems at real hypersonic flight conditions. The mission will be the first flight of DART AE.

Unlike conventional scramjets powered by kerosene, SPARTAN uses hydrogen, producing zero CO₂ emissions and offering are usable, low-maintenance solution for a range of high-speed defence and aerospace missions.

The technology was developed by Dr Michael Smart, co-founder of Hypersonix, former Chair of Hypersonic Propulsion at the University of Queensland and former NASA research scientist.

Dr Smart said the flight is about proving the fundamentals of reusable, hydrogen-powered hypersonic flight at real conditions in the upper atmosphere.

“DART AE allows us to validate propulsion, materials and control systems at speeds and temperatures that simply can’t be replicated on the ground,” he said.

“What we learn from this mission will directly inform the next generation of operational hypersonic vehicles.”

Hypersonix CEO Matt Hill said it’s a major milestone for the company.

“This flight reflects years of engineering work and the confidence of our partners at DIU, NASA and Rocket Lab,” he said.

“It brings us a meaningful step closer to operational hypersonic systems that are reusable, sustainable and strategically relevant for Australia and for our allies.”

Launch details:

·       Mission name: Cassowary Vex

·       Launch name: That’s Not A Knife

·       Launch Window Open: late February

·       Customer: Defense Innovation Unit (DIU) & Hypersonix

·       Launch Site: Launch Complex 2, Virginia

·       More info: Launches | Rocket Lab

Visit Rocket Lab’s website and follow on social media for live launch updates: X, Facebook, LinkedIn, Instagram. The launch broadcast will be aired live on YouTube.

The launch follows Hypersonix’s $46 million Series A funding round, backed by Australia’s National Reconstruction Fund Corporation and Queensland Investment Corporation. The round was led by High Tor Capital, a UK investor in national security and frontier technology, with European defence company Saab and Polish family office RKKVC also supporting the raise.

The funding is accelerating Hypersonix’s flight-test program, supporting advanced manufacturing capability in Queensland, and fast-tracking development of its next reusable hypersonic platform, VISR (Velos Intelligence, Surveillance and Reconnaissance). The company currently employs over 50 people in Brisbane across aerospace engineering, advanced manufacturing, and testing roles.