The phrase "a sweeping turn" is correct and usable in written English.
It can be used to describe a broad or wide curve, often in the context of driving or movement.
Example: "The car took a sweeping turn around the mountain, revealing a breathtaking view of the valley below."
Alternatives: "a wide curve" or "a broad turn".
We made a sweeping turn over the Bosporus and flew northwest for about an hour.
The repetitive movement is exhausting: a lift is executed once and then repeated; ditto for a sweeping turn.
Kumaritashvili was approaching the end of Curve 16, a sweeping turn to the right nicknamed Thunderbird, and was just moments from the finish line.
The Coca-Cola Track has a sweeping turn leading to a long straightway that propels the kart, at top speed, into a punishing series of very tight turns.
Rushing toward the opposite shore, I turned the handlebars and the craft leaned predictably into a sweeping turn as a curtain of water played accompaniment.
A really smart goal scored with a sweeping turn and rising shot from Álvaro Negredo could not console anyone connected to City, not least the Abu Dhabi sheik who has poured extraordinary sums into the team since buying it.
The Biographer's Tale (2000) is an erudite and occasionally esoteric literary mystery, and The Children's Book (2009), following the family of a beloved children's author, incorporates historical figures into a sweeping turn-of-the-20th-century tale.
For Mr. Benjamin, it is a long, sweeping turn where Dey Road curves through farmland and straightens toward Scudders Mill Road.
The most complex sculpture on the car's surface comes in the C-pillar hip area, where the sheet metal makes a dramatic, sweeping turn — the car's aria.
But he gunned the colt coming out of Belmont's long sweeping turn and took a four-length lead with a quarter of a mile to go.
As Touch Gold settled back to a close fourth entering the final sweeping turn, Silver Charm moved to the lead and engaged rival Free House to what everyone thought would be a stretch duel to the wire.
