The Airbus A350F left Toulouse on 29 September after years of design, testing and industrial preparation, turning one of the manufacturer’s most ambitious cargo projects from an engineering programme into a flying aircraft.

MSN700 spent 4 hours 10 minutes in the air, reaching 25,000 ft, with a five-person Airbus flight-test crew operating a heavily instrumented aircraft. The flight begins a certification campaign expected to run for more than nine months and around 400 flight hours.

The A350F represents the company’s attempt to establish a substantial position in the large-freighter market, historically dominated by Boeing, while giving operators a new production freighter alternative at a time when much of the existing fleet is ageing.

“Customers want to maximize revenue. They want to get the most lucrative loads on board, and the flexibility to be able to react to get those lucrative loads, and then also make sure that they can boost their service levels by having a reliable airplane. Range flexibility is important because there are lots going on now where there are no-fly zones for various aircraft. We need a flexible range of the aircraft,” Crawford Hamilton, Airbus’s Head of Freighter Marketing, said.

The freighter has to work as an economic tool rather than simply as an aircraft with impressive headline specifications. That means payload flexibility, route capability, dispatch reliability and the ability to keep cargo moving through increasingly complex global supply chains.

The A350F can carry up to 111 tonnes over a range of up to 8,700 km. Its principal structural advantage comes from the A350’s extensive use of advanced materials, while the Trent XWB-97 engines provide a propulsion system already established on the A350-1000. Airbus puts the aircraft’s maximum take-off weight advantage at 46 tonnes against competing aircraft and claims fuel-burn and CO₂ reductions of up to 40 percent for comparable payload-range missions.

“We are now entering into a phase of more or less nine months of certification of flight test until certification. So we are very confident that we are going to deliver the aircraft to the first customers in the second half of next year. I think it’s 400 hours of test flight. So we’re going to test the aircraft from the bottom to the top because it’s a freighter, it’s not the same like a passenger aircraft that takes time,” Lars Wagner, CEO of Airbus Commercial Aircraft Business, explained.

Designing a freighter around the cargo

The forward fuselage was shortened, removing five frames, to produce what Airbus considers the appropriate centre-of-gravity position for a fully loaded freighter. A new main-deck floor was developed for dense cargo, while the rear-mounted main-deck door is sized around the movement of exceptionally large loads.

“We have reinforced the main deck to be able to carry heavy loads, dense loads. We talked about running loads, so the key is the density of the pallets that the operators can load. And of course, when you are around the wings, you can have heavier pallets. When you are at the two extremities, you need slightly lighter pallets or less heavy. We put a lot of care to design and to strengthen our floor so that we give maximum capacity in this building,” Julien Puyou, Head of Widebody Programmes at Airbus, said.

Airbus has developed a watertight main-deck floor with drainage, allowing operators to clean the cargo compartment more readily when transporting live animals, food and other loads where spills or leakage can occur. The main-deck loading system has also been redesigned around heavy cargo and maintenance requirements. Larger power-drive units and a more robust installation should address some of the servicing demands associated with converted freighters.

The cargo door itself is another defining feature. At 4.3 metres wide, it is the largest in the commercial aviation sector, with the geometry intended to allow very large aircraft engines to enter the aircraft and be moved forward without multiple loading operations.

“We actually took the front section from the A350-900 and the rear one from the 1000. So we actually designed a brand new fuselage, 100% fit for cargo operations. The cargo loading system is fully integrated into the suitable flow of the aircraft, not only to optimize the cargo volume, but also the loading operation. Of course, the A350 freighter remains an A350, and it builds on the strengths of the 350 family,” Rémi Maillard, Airbus Executive Vice-President Engineering and Head of Technology at Airbus, outlined.

From airframe to cargo system

The company wants the freighter to draw heavily on existing production infrastructure, expertise and supply chains rather than creating a wholly separate industrial system. For operators, meanwhile, the A350 family connection offers the prospect of fleet and crew commonality with passenger variants.

Airbus’s SmartCargo architecture can track pallet positions and environmental parameters, allowing operators to compare the actual loading configuration with the intended load plan. Cargo temperature can be monitored across multiple zones, creating a digital record for sensitive shipments.

“We incorporated some systemic equipment, what we call the smart cargo, which is a way to help automated operation, data-based operation for freight operators that would simplify further their operation in terms of knowing their payload and how the loading of the aircraft is performing. Composite is particularly significant in terms of keeping the payload portion of the element that the operators need. It is very significant because what you transport in freight is cargo,” Philippe Mhun, Executive Vice-President Programmes and Services at Airbus Commercial Aircraft, highlighted.

Its eight temperature-control zones, for example, are designed to support shipments ranging from fresh produce to live animals, while sensors provide operators with data about the conditions experienced during transport. This is important because cargo revenue depends not simply on how much an aircraft can carry, but on what it can carry and how reliably that cargo can be moved through the network.

The order book provides the first indication that the proposition has found an audience, having reached 115 orders from 14 disclosed customers by the end of August, with the aircraft accounting for up to 59 percent of the large-freighter market by orders.

The customer base is diverse, spanning combination carriers, dedicated cargo airlines and leasing interests. That diversity gives Airbus a broader operational footprint from the outset and provides a customer base capable of validating the aircraft across different freight networks.

“What we’re seeing is combination carriers. Combination carriers are ones that operate freighters and PAX aircraft together. So we’ve got Korean, we’ve got Cathay, we’ve got Singapore. We’ve got all cargo carriers, Silk Way, Atlas, who are our biggest customer at the moment with 20 aircraft, CMA CGM, MNG. We’ve got a really diverse base there,” Hamilton laid out.

Testing the proposition

The flight-test programme will now determine the operational performance, with more than 10,000 hours of ground testing having take place utilising around 600 dedicated sensors, with approximately 60 km of additional wiring generating as much as 220 GB of data per flight.

“The aircraft is facing reality, and we will see whether the prediction, the measurement we did on the ground are true. This is for me a very special day. I live several times in 25 years for plants from outside the house today, but from inside also. I let you guess what is the best place,” Jean-Philippe Cottet, Head of Development Flight Tests at Airbus, said.

The first aircraft will concentrate on aerodynamics, performance and handling, while the second test aircraft will address systems and cargo-specific functionality. The next phase will include flutter, handling, anemometry, autopilot and performance testing, alongside cargo-system maturity work and hot- and cold-weather campaigns. Airbus has prepared 75 dedicated ULDs for the flight-test programme, representing more than 200 tonnes of specific test installations.

An ageing large-freighter fleet, increasingly demanding emissions requirements and the need for new capacity creating a market for the A350F. Airbus’s weight advantage and A350 heritage as the basis for challenging an established segment. Operators have asked for an aircraft capable of handling unusual cargo, simplifying loading and providing better visibility over freight throughout the journey. The aircraft represents the culmination of a development effort spread across Airbus’s international engineering and manufacturing network, with teams in Europe and beyond contributing to the programme.

“I feel super energized, super proud. When I was a young engineer, being 23, 24, I couldn’t imagine attending those kind of events. I couldn’t imagine being part of such skilled teams. And here I’m thinking about our engineers, I’m thinking about our partners, and of course our test crew, including the flight crew that you see today,” Philippe Mhun Executive Vice President Programmes and Services of the Commercial Aircraft business Airbus, said.

“We still have it. It’s still here, and it is stronger than ever. We still pioneers. We still have this pioneering experience that helps us to push boundaries and to explore new territories,” Maillard concluded. “With this aircraft, not only we go further, but we do it more efficiently.”

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