Newey recalls most memorable technical ‘loopholes’ from F1 career

Adrian Newey, the mastermind behind some of Formula 1’s most innovative car designs, recently revisited some of the technical “loopholes” he exploited throughout his illustrious career.

From Williams to McLaren and Red Bull, Newey’s ingenuity has defined eras of F1 dominance, and his creative interpretations of the rulebook remain legendary.

Speaking to Auto Motor und Sport, the soon-to-be Aston Martin Managing Technical Partner detailed some of his most memorable design exploits—many of which changed the sport forever.

The First Breakthrough: Reviving Exhaust Blowing in 2000

Newey’s first iconic loophole came in the early 2000s when he reintroduced the exhaust-blown diffuser to Formula 1.

While the concept had originally surfaced in the mid-1980s with Lotus, it was effectively banned after the tragic events of Imola in 1994. However, Newey saw an opportunity to bring it back under the radar.

“We found a way on the 2000 McLaren to reintroduce exhausts blowing the diffuser by hiding it beside the gearbox and above the plank,” Newey told AMuS, and quoted by the official Formula 1 website.

“But, of course, that loophole was then closed!”

This clever solution gave McLaren a performance edge for a brief window, but the FIA’s rulemakers swiftly acted to outlaw the design.

Mastering the Double Diffuser: Red Bull’s 2010 Dominance

Fast forward to 2010, and Newey’s next innovation came with the Red Bull RB6. By then, Formula 1 had shifted to a new set of aerodynamic regulations, introducing the infamous double diffuser.

The British engineer seized the opportunity to extract additional performance by combining it with exhaust-blowing technology.

“With the RB6, the 2010 car, we actually had the exhausts mounted on the side, the coke [bottle] area, but blowing a slot in the double diffuser—and that was very powerful,” he explained.

“Double diffusers, and hence that loophole, were banned for 2011, but we’d rediscovered the power of it, so I was anxious to try to not lose that.”

The RB6 became one of the most dominant cars of its era, helping Sebastian Vettel secure the first of his four world championships.

Tackling the ‘Squish’ Problem: The Game-Changing RB7

When double diffusers were outlawed in 2011, Newey pivoted to solving a fundamental aerodynamic problem faced by all race cars: air turbulence around the wheels, known as “squish.”

He found an ingenious way to use exhaust gases to mitigate the issue, crafting one of the most dominant cars in F1 history—the RB7.

“One of the big aerodynamic problems that all open-wheel and closed-wheel cars struggle with is what’s called a ‘squish,’” Newey explained. “When the air hits the wheel... it squirts out sideways.

“I felt if we could get the exhaust just in front of that, and get it to blow down slightly, then we could use the exhaust to shut off that ‘squish’ loss.

“That’s what the 2011 car, the RB7, did, by having what looked like cricket bats just in [front] of the tyre. That was incredibly powerful.”

Once again, the FIA quickly banned this solution for 2012, forcing Newey and his team to adapt.

The Coanda Effect and the Final Chapter of Red Bull’s Streak

In 2012, Newey faced another regulatory curveball: exhausts now had to blow upwards at a 30-degree angle. Initially, Red Bull struggled to harness the same level of performance, but McLaren’s use of the Coanda effect offered a path forward.

“McLaren came up with this concept that they blew it up, in what’s known as the Coanda effect,” Newey said.

“What we did at Red Bull was effectively copy the McLaren channel of pointing up and then curving down, but followed that all the way to the rear tyre, so it had a decent chance of ducting it in this U-shape.

“It was an incredibly powerful effect once we got it running.”

This adaptation kept Red Bull at the front of the grid, extending their dominance to four consecutive Drivers’ and Constructors’ Championships between 2010 and 2013.

Reflecting on that era, Newey said, “That chain of four championships... one of the most powerful [elements] was that all four years we found a way of getting a blown exhaust to work.”

A New Chapter with Aston Martin

Newey’s brilliance will shift to a new challenge next month when he joins Aston Martin as Managing Technical Partner.

With his planned start just ahead of the 2025 Australian Grand Prix, the team is banking on his legendary ability to find loopholes and create championship-winning designs.

As Newey prepares to tackle the next phase of his career, his legacy as F1’s ultimate innovator remains undisputed – a legacy built on pushing the boundaries of the rulebook and redefining what’s possible in motorsport engineering.

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