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You are here: Home / News / Orbex secures reusable rocket tech patent and gains ESA Flight Ticket Initiative position

Orbex secures reusable rocket tech patent and gains ESA Flight Ticket Initiative position

April 2, 2024 by editorial

Orbex, the only UK owned orbital launch services and rocket manufacturing company, has successfully patented its REFLIGHT reusable rocket technology following patent approval in several European markets as well as the United States. This protection was based on the patent grant by the European Patent Office.

The technology is uniquely suited to micro-launcher rockets such as Orbex’s Prime rocket as it enables recovery of the launch vehicle by repurposing existing structural features, while adding very little additional weight to the vehicle. It enables reusability with very limited overall performance penalty and no additional rocket propulsion emissions in the upper atmosphere during re-entry. This should be compared to other reusable launch systems using powered descent (rocket engine firings) to slow down the vehicle during re-entry and landing.

Orbex’s Prime rocket will consist of two stages, and the REFLIGHT system repurposes the interstage structure located between the stages. After Stage 1 detaches from Stage 2, the interstage on top of Stage 1 reconfigures into four ‘petals’ which fold out and create drag forces that passively reorients and slows the spent rocket stage’s descent to Earth.

In combination with a lightweight parachute the drag created by the petals will enable Stage 1’s to perform a low velocity landing at sea.

Orbex will then recover the floating Stage 1 and return it to its factory in Forres for refurbishment and/or recycling. During descent and recovery, there will be no debris left in orbit, on land or in sea, creating a ‘circular rocket economy’.

Artistic rendition of a launch at Sutherland Spaceport. Image is courtesy of ORBEX.

Additionally, the construction of Sutherland Spaceport continues to move forward, with two new watercourse crossing bridges transported on-site in February, the bridges will form part of the floating road connecting the launch site to the Launch Service Integration Facility (LSIF) and the Launch Pad.

The special bridges will help respect and preserve the natural conditions and ecology of the watercourse, such as the bed and banks, water levels, and wildlife habitats. The bridges also support ecosystem health through ecological design features that will prevent erosion, improve water quality, and facilitate wildlife movement.

Aerial image of Sutherland Spaceport as construction continues. Photo is courtesy of Orbex.

Orbex is the only UK supplier, and only launch services provider with its own spaceport, to be selected for the European Commission and European Space Agency (ESA) Flight Ticket Initiative. The Flight Ticket Initiative will supply payload for Orbex’s Prime rocket when undergoing test phases, demonstrating the UK start-up as a trusted supplier in the orbital services sector. The support will help Orbex achieve its goal of making the UK a central hub for European space flight.

Jonas Bjarnø, CTO at Orbex, said, “At each step in the construction of Prime, we are looking at how to improve the launch system efficiency and sustainability. Our REFLIGHT technology is a critical innovation in overall efficiency of the system, and the slower return to Earth reduces risk of significant aerothermal damage, enabling refurbishment and re-use of parts. This is really critical to our vision for a more sustainable, circular rocket economy.”

Phil Chambers, CEO at Orbex, said, “Securing a spot on the ESA Flight Ticket Initiative is a significant milestone for Orbex as we continue our journey to achieving sustainable space launch solutions. We are proud to be the only UK-based company to be selected, enabling us to lead the way in carbon-neutral spaceflight operations and propel the UK to the forefront of the global space industry.“

Filed Under: News

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