The triannual charity event was set to start on 30 August 2021, with 100 competitors geared up to fly a total of 3,800-kilometres across three different states.

Little Ripper’s pioneering devices can sound alerts to swimmers in danger, detect sharks and crocodiles and track objects or people in the water by dropping sea-marker dye.

The flag carrier has been using its 787 Dreamliners for the missions, which have a capacity to carry around 170 passengers each, meaning 17,000 more stranded Australians can return.

The business said it would use its Embraer E190 and the Bombardier Q400s, which output comparatively low carbon emissions.