Qantas's Project Sunrise—non-stop flights from Sydney and Melbourne to London and New York of up to 22 hours—is as much a financial gamble as an engineering one, according to Airways Magazine.

The economics hinge on fuel. Flying roughly 10,500 nautical miles non-stop means the custom Airbus A350-1000ULR must take off at maximum weight, burning a significant share of its fuel simply to carry the fuel it will need later in the flight—a phenomenon known as the fuel tankering penalty. To extend range without a larger airframe, Qantas asked Airbus to add an extra centre fuel tank holding around 20,000 litres.

That extra fuel comes at the cost of passengers. The Project Sunrise configuration seats just 238 people, well below the 350-plus a standard A350-1000 typically carries—roughly 20 percent fewer seats than usual. The cabin will also include the "Wellbeing Zone," an open space between Premium Economy and Economy for stretching and movement, along with circadian-rhythm-based lighting designed to ease jet lag.

With fewer seats and virtually no room for commercial cargo, Qantas is relying on higher fares to make the route profitable. The airline has said its projections assume non-stop tickets could command around a 20 percent premium over one-stop alternatives in premium cabins and has estimated Project Sunrise could add more than A$400 million a year to earnings.

The first Project Sunrise A350-1000ULR completed its maiden test flight over France earlier this year, beginning a roughly 80-hour test campaign. The aircraft is due to enter service in 2027, following supply-chain delays that have pushed back the programme, which was first announced in 2017.

Source: Airways Magazine