Delta Velos

This fully reusable hypersonic flight system will enable scramjet-powered access to space, from any launch site. Engineered for rapid mission deployment, time to launch will be measured in days, not months.

The vision; enabling multi-mission hypersonic space operations

Repeatable hypersonic flight

Engineered for high-cadence flight, this aircraft can be refuelled and ready to fly in a short timeframe, proving capable of multi-mission payload delivery.

Multi-satellite deployment

Designed to be scaled so different payloads can reach different orbits, this aircraft can take off and change direction in low Earth orbit (LEO) to deploy a range of satellites.

Scalable development

Manufactured using efficient additive engineering processes and commercial CMC materials, Delta Velos is purpose-built for a short cost-effective production cycle.

Controlled manoeuvrability

Delta Velos will be capable of following a guided flight trajectory and have the ability to fly like a plane, providing more controlled access to low earth orbit.

Specifications

12m
Length
3.5m
Wingspan
1m
Diameter
Mach 12
Speed
50kg
Payload to LEO

Faster, efficient hypersonic satellite launch

The demand for high-speed space operations is growing, however developing the necessary propulsion systems and thermal-resistant materials required for hypersonic flight presents major technical and financial challenges.

Enter Delta Velos – engineered with a cost-effective production and fast iteration cycle that accelerates mission deployment and enables repeatable flight. This system is designed to revolutionise hypersonic satellite launch and payload delivery to space.

Rapid, responsive access to space

Delta Velos will fly like an aircraft, rather than a traditional rocket, enabling launches from more locations with less reliance on fixed infrastructure. This system will deliver controlled, non-ballistic mission capabilities for space operations like satellite deployment and constellation replenishment.

Designed for responsive payload deployment, Delta Velos is capable of efficient and repeated hypersonic access to space.

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Delivering sustained mach 5+ flight

Our most recent DART AE mission marked a critical step in validating flight system performance in true hypersonic conditions. Achieving speeds beyond Mach 5 within a real-world hypersonic environment, the program generated high-value flight data across propulsion, materials, and guidance systems.

In partnership with NASA and Rocket Lab, this milestone marked the world’s first hydrogen-powered scramjet hypersonic flight – demonstrating our capability to develop next-generation, scalable, and commercially viable flight platforms.

Power source

Powered by SPARTAN

Delta Velos is powered by four SPARTAN scramjet engines – Hypersonix’s fifth-generation propulsion system. The flight-proven, hydrogen-powered SPARTAN delivers enhanced mission reliability, designed for high-cadence flight.

SPARTAN scramhet
Why use H2 as fuel?

Hydrogen is fuel for a low carbon future

Hydrogen can be produced from just water, using renewable energy. Burning it in an engine produces only water vapour. There is a global movement towards low-carbon fuels and Australia is set to become a key player in the hydrogen industry, with government and private investment into local green hydrogen production facilities.
Hypersonix has partnered with BOC Australia, who has announced its intention to build a green hydrogen production facility using seawater as the main ingredient, in Queensland.

The clean hydrogen industry is growing quickly Australia-wide, with over $1.6 billion invested in the private sector and $1.27 billion in the public sector. The price of clean hydrogen is projected to decrease to between $2 and $4 per kilogram by 2030.

Hydrogen is an excellent aerospace fuel

The space industry has historically utilised hydrogen as rocket fuel, including in the space shuttle program.

Hydrogen is non-toxic and its low density means any leaks and fires are directed upwards — unlike hydrocarbon fuels, which could pool under the aircraft. Hypersonix’s vehicles are also unmanned, reducing the risks to humans. Hydrogen has approximately 2.5 times the energy density of hydrocarbon fuels, such as kerosene, making it the perfect fuel in an industry where every gram counts.

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Discover more about our next-generation, reusable hypersonic technology and flight systems

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