British aircraft engine manufacturer Rolls-Royce will supply engines for the American B-52 bombers.

As a result, the outdated devices must be able to last for years.

The deal is worth up to $2.6 billion (2.2 billion euros), the Pentagon has said.

Rolls-Royce, which will have the job done by its North American branch, has won a basic contract of $501 million.

It concerns the delivery of 608 engines for a total of 76 B-52s of the United States Air Force.

Each plane has eight engines.

But there are also many options with the deal, which can further increase the amount for the manufacturer.

Rolls-Royce will also supply spare parts.

The B-52 was put into service in the 1950s and was used during the Vietnam War, among other things.

The heavy bombers are still important to the US in the current era of drone technology.

Most recently, B-52s were used to provide air cover during the withdrawal from Afghanistan.

The Americans want to use the aircraft until about 2050, but then the aircraft must be upgraded.

The US government is spending an estimated 11 billion dollars for this.

For example, there should also be new displays in the cockpit.

Several manufacturers were in the race to supply the new engines.

General Electric and Pratt & Whitney, which made the current engines for the B-52s, also came up with a proposal.

But in the end the preference went to Rolls-Royce.

Incidentally, it is not about the car manufacturer Rolls-Royce.

The automotive division has not been part of the industrial group since the 1970s.

Cars bearing the Rolls-Royce name are now produced under the German BMW flag.

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