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Aerospace and defense company RTX (RTX -0.10%) didn’t really have a banner day on the market Thursday, but in a trading session when the S&P 500 index fell by 0.6%, the stock’s flat performance made it a winner. Investors were reacting to good news from one of RTX’s three core business divisions.

Up in the air

That division is aircraft engine specialist Pratt & Whitney, which this morning reported it had earned an important certification abroad.

Image source: Getty Images.

Specifically, Pratt Whitney’s GTF Advantage engine got the nod from the European Union Aviation Safety Agency (EASA). This follows similar certification from EASA’s American equivalent, the Federal Aviation Agency (FAA), and the company said it clears a path for the product to enter service next year.

The GTF Advantage is a next-generation engine for airliners that, according to its maker, delivers more thrust and boasts higher fuel efficiency than competing products currently on the market.

Big promises

In its press release divulging the happy news, Pratt & Whitney quoted its president of commercial engines, Rick Deurloo, as saying that the company’s new engine “will be a game-changer for operators.”

Despite the confidence, however, Pratt & Whitney did not provide any estimates as to how sales of the GTF Advantage will impact its fundamentals, or those of its parent RTX.

Britain’s Emma Raducanu fell agonisingly short of beating world number one Aryna Sabalenka and earning a statement win at the Cincinnati Open.

Raducanu, 22, lost 7-6 (7-3) 4-6 7-6 (7-5) as defending champion Sabalenka edged a battle lasting more than three hours to reach the fourth round.

Having also pushed Sabalenka at Wimbledon, Raducanu’s performance was further evidence she can severely test the world’s best as her revival continues.

This season, with the British number one’s fitness issues largely behind her and the development of a new-found resilience, she has climbed back into the top 40.

“As I said at Wimbledon I am really happy to see her healthy – mentally and physically,” said Sabalenka.

“Every time she is improving and I can see she is getting back to her best.

“I’m enjoying fighting against her – she is such an incredible player.”

Raducanu could be seeded among the leading 32 players at the upcoming US Open, providing a more favourable draw – in theory at least – at the hard-court Grand Slam which she won as a teenage qualifier in 2021.

On the basis of this display against Sabalenka, there are plenty of positives for Raducanu to take into the final major of the season.