The initial contract to proceed with production on a version for the air force version is worth an estimated 20 billion dollars (£15.5 billion).

A separate Navy contract for its version of the NGAD fighter is still under competition between Northrop Grumman and Boeing.

The 47th president, who announced the award at the White House, said with a grin that the new fighter would be named the F-47 ...

Donald Trump appears to have named America’s next-generation fighter jet in tribute to himself. Mr Trump, America’s 47th ...

“For me, it represents our legacy, it represents the ability, even in the most difficult situations, to come together as a unit and make something work.” ...