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Amiga Engineering to 3D print Hypersonix’s scramjet engine

Hypersonix has placed an order with Amiga Engineering for the Additive Engineering build of the SPARTAN 5th generation scramjet. SPARTAN is a fixed geometry self-igniting hydrogen powered scramjet capable of accelerating from Mach 5 to Mach 12.

Its fixed geometry means it has no moving parts, so the design lends itself to Additive Manufacturing (3D printing). This reduces both the cost and time to produce the scramjet, whilst potentially adding to reliability and performance. Additive manufacturing allows the creation of highly complex parts with low weight, which is essential for the Space industry.

SPARTAN uses green hydrogen for fuel, says Hypersonix, so creates no CO2 emissions. The hydrogen fuel also allows Hypersonix to utilise regenerative cooling on the combustor, in turn allowing the use of readily available high temperature alloys in place of more expensive and complex high temperature composites.

David Waterhouse, Managing Director and Co-Founder, Hypersonix said: “The use of Additive Engineering to manufacture a scramjet engine will fundamentally disrupt the cost structure of scramjets and an important step in providing more affordable access to  hypersonic flight. We are very proud of Australia’s world leading heritage in hypersonics and the ability of Australian companies to work together to demonstrate of Sovereign capability in this New Space technology.”

Additive Manufacturing/ 3-D Printing techniques is one of the key elements mentioned in the Australian Modern Manufacturing Strategy which includes priorities such as Space, Defence and Clean Energy.

The manufacture of the SPARTAN scramjet is being done under the Federal Government ACA Grant that Hypersonix was awarded in August 2020. Under this grant, Hypersonix is building a flight ready scramjet engine and fuel system. Hypersonix has been able to leverage the growing global hydrogen economy to repurpose off-the-shelf high-pressure composite hydrogen tanks.

Hypersonix completed shock tunnel testing of SPARTAN in March 2021 and has completed the final design and thermal modelling of the scramjet. The project is on budget and in schedule and due for completion in March 2022.

Michael Bourchier, Founder and Managing Director Amiga Engineering adds: “In a demanding industry such as aerospace, additive manufacturing offers the cutting edge in component manufacture capable of creating very complex parts in some of the most exotic materials.”

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