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gargantuan air freighter

Meet the gargantuan air freighter that looks like a whale

By Theo Leggett & Matthew Wall

Technology of Business, BBC News

6 April 2018

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Media captionAirbus builds a new super-transporter

passenger aircraft are built in sections around the world then assembled in various locations, so how do you transport huge parts like wings and fuselages? Meet the super-transporters - giant planes for giant jobs.

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The aircraft being assembled in Hangar L34 at Airbus's Toulouse headquarters is, to put it mildly, an unusual beast.

Where most aircraft have slim, elegant fuselages this one is swollen and bloated, ending in a vast curved dome above the cockpit.

Its wings, despite a span of more than 60m (197ft), seem remarkably short and stubby next to that enormous body.

Overall, it bears a striking resemblance to a whale - and indeed it is named after one. This is the Airbus Beluga XL, a brand new breed of super-transporter.

The company needs aircraft like this to transport major components, such as wings and sections of fuselage, from the factories where they're built to final assembly lines in Germany, France and China.

Image copyrightpHILIppE MASCLET MASTER FILMS

Image caption

The first Airbus Beluga XL is close to completion

Airbus has highly specialised production centres across Europe, a legacy of the time when it was a consortium of national aerospace businesses. To allow its supply chain to work effectively, it needs to be able to carry large cargoes from one site to another with minimal delay.

But why not simply build everything in one place to do away with the need for giant transporters?

"Airbus pioneered the system of having centres of excellence around Europe - now around the world," says prof Iain Gray, director of aerospace at Cranfield University.

"You've got skilled labour, shared investment, and the ability to draw in local expertise - the benefits of a distributed model are well proven."

Image copyrightGETTY IMAGES

Image caption

Airbus's cargo plane is named after the eponymous bulbous-headed whale

Indeed, rival aircraft maker Boeing moved from a more centralised system to Airbus's distributed model, says prof Gray.

Hence the need for super-transporters.

Back in the 1970s, that job was done by variants of Super Guppy, a conversion of Boeing's turbo-prop powered C-97 Stratofreighter - itself a development of the Second World War B-29 bomber.

It was replaced in 1995 by a first-generation Beluga, the ST, a twin-engine jet built by Airbus itself. Much bigger than the Super Guppy, it could also be loaded and unloaded far more quickly.

Image copyrightNASA

Image caption

Airbus and Nasa were among those using the Super Guppy to transport oversized parts in the 1970s

Airbus currently has five Beluga STs in service, flying for thousands of hours each year and often making multiple journeys each day.

But as the aerospace giant itself has grown, so have its needs.

One of the main jobs of the Beluga is to fly wings for the new A350 from Broughton in North Wales, where they are manufactured, to Airbus's headquarters in Toulouse, where the aircraft are assembled.

"Airbus's production volumes are massively increasing," says prof Gray, so a longer, wider, taller transport aircraft helps speed up production.

"We can carry more," says Bertrand George, head of the Beluga XL programme. "We can carry two wings at a time, rather than one. So it means for the wing leg of the operation, coming from the UK to Toulouse via Bremen, we double the productivity of the aircraft."

Image copyrightAIRBUS

Image caption

A "pod" of Beluga cargo airlifters moves parts between 11 European sites

Despite its remarkable appearance, the Beluga XL is not a wholly new design. In fact, the one being prepared in Hangar L34 began life as a much more conventional machine - an A330-200 freighter.

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Airbus engineers removed the roof and cockpit and replaced them with a custom-built structure, to create the necessary vast cargo bay. The characteristic Beluga shape was created with the addition of a giant cargo door, allowing the aircraft to be loaded from the front.

The Beluga XL will begin test flights later this year, and is due to enter into service in 2019. There are currently two being built, and Airbus intends to make five of them. The existing Belugas will be phased out by 2025.

Despite its remarkable size, the Beluga XL will not be the largest super-transporter ploughing through the skies.

Boeing, for example, has its own big beast - the Dreamlifter, which it uses to bring major components of the 787 Dreamliner from supplier factories in Japan and Italy to its final assembly lines in Washington state and South Carolina.

Image copyrightED TURNER/BOEING

Image caption

Boeing's Dreamlifter is even bigger than Airbus Beluga XL

If the Airbus looks like a whale, the Boeing most closely resembles a snake that has swallowed a cow.

Based on the 747-400, with an enlarged fuselage, it can actually lift a greater weight than the Beluga.

But according to David Learmount, consulting editor of the aviation research company FlightGlobal, such comparisons are not really the point.

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Publicerat klockan 05:19, den 20 juli 2017
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