In comes after Orbit’s unique satellite-launching 747 failed after taking off from Cornwall in south-west England earlier this year. A later investigation revealed a simple fuel filter dislodged mid-launch, leading to the loss of all nine payloads onboard.

The deal, which includes pay increases of between 14 and 18 per cent over three years, as well as an extra six days off per year, recognition for unpaid standby time, and overtime after nine hours, comes after months of negotiations and an intervention by Virgin founder Sir Richard Branson.

The aircraft is based on a heavily modified Airbus A330 airliner and undertakes air-to-air refuelling and strategic airlift duties. Australia has seven, which are operated by No. 33 Squadron and based at RAAF Base Amberley in Queensland.

Four staff were ferried safely ashore after being evacuated from a remote offshore weather station by the next generation submarine hunter and anti-surface warfare helicopter, operating from guided missile destroyer HMAS Brisbane Navy warship.