Aerospace & Defence

Advanced Navigation to support Gilmour Space blast-offs

3rd February 2025
Caitlin Gittins
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Advanced Navigation has received grant funding from the Australian government through the Australian Space Agency. The Moon to Mars Initiative Grant will accelerate the development of a space-graded high-shock Inertial Navigation System (INS) to withstand the extreme conditions of a rocket launch.

The final system will support Australian launch services company Gilmour Space Technologies in the development and launch of their Eris Rockets and Elara Satellite platforms to Low Earth Orbit (LEO).

“In the vast emptiness of space, without external guides, rockets rely on a sophisticated suite of navigation, guidance, and control (GNC) systems. The onboard navigation system must withstand dynamic conditions, gravitational forces, and the intricate physics of orbital mechanics, while providing a reliable flight path. Put simply, the system must be indestructible,” said Chris Shaw, CEO and Co-Founder, Advanced Navigation. “Our engineers are excited to continue their innovations in developing sensors for high-stakes environments. We look forward to supporting Gilmour Space in advancing Australian-made launch vehicles to help lower the cost of accessing space.”

From lift-off to payload deployment, each stage of the rocket's journey demands precision engineering and coordination. Therefore, electronic and fibre-optic hardware must be capable of withstanding massive shock, vibration, shifting gravity, payload impact and extreme temperature change.

They must be integrated into the whole system, as a slight misalignment or miscommunication at any stage could be hazardous and result in a mission failure.

The onboard INS consists of an abundance of high-end sensors, including accelerometers and gyroscopes, sensitive enough to detect the smallest change in noise and vibration. To ensure accurate and reliable performance, these delicate components must be shielded from the extreme forces experienced during launch.

One solution is the integration of a high-shock enclosure—a protective barrier encircling the INS housing. This enclosure acts as a cushion between the system and the surrounding structure, absorbing and redistributing intense g-forces from engine ignitions and launch vibrations. By dampening these shocks, the enclosure prevents disruptive forces from reaching the sensors, preserving their precision in the harshest conditions.

“This partnership brings together two companies committed to growing Australia’s sovereign aerospace capabilities. We look forward to working with Advanced Navigation on future missions to enhance our launch and satellite systems for our global customers,” commented Kody Cook, Deputy Chief Engineer, Gilmour Space.

Qualification of the INS will be aligned with Gilmour Space's Eris orbital vehicle. Simulating a rocket launch, the navigation system will run through a series of stringent tests to gauge its failure point, including:

  • Shock: sudden high-impact forces to simulate stage separations and engine ignitions
  • Vibration: continuous high-frequency vibrations to replicate the conditions during lift-off and ascent
  • Temperature: extreme heat and cold cycles to ensure functionality across the rocket's operating range
  • Pressure and Vacuum: rapid pressure changes and vacuum environments to simulate ascent through the atmosphere and operation in space

The simulations create the perfect storm for system failure, which the INS must survive being repeatedly shaken, frozen, heated, smashed, crushed, and pulled, before it is ready for blast-off.

“Projects like this one demonstrate the ingenuity that Australia has to offer our international partners in space," said Enrico Palermo, Head of Australian Space Agency. “Through this investment we are helping Australian companies gain crucial space heritage and grow strong customer bases—which will generate more opportunities for Australia to collaborate on the global stage.”

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