One more reason not to trust everything you read until the real prototype has been rolled out:
London to Sydney 'in five hours' on new jet - ABC News (Australian Broadcasting Corporation)
"The plane, which at 143 metres long would be about twice the size of the biggest current jets, could fly non-stop for up to 20,000 kilometres."
The hypersonic plane designed to reach Australia in under five hours | Business | The Guardian
"Another advantage of the design is that while the 132 metre-long A2 is much bigger than conventional jets it would be lighter than a Boeing 747 and could land on current airport runways."
Is it 143m or 132m long? Yes, it may be able to land on current airport runways but will it be able to use the current taxiways?