The 'halo' device that saved F1 driver Romain Grosjean's life explained

Formula 1 driver Romain Grosjean says the sport’s one-time controversial halo device saved his life after a dramatic crash at the Bahrain Grand Prix.

The 34-year-old’s car burst into flames after piercing through a steel barrier at 140mph and splitting in two during the 15th round of the 2020 Formula One World Championship.

Grosjean was quick to escape the wreckage and somehow walked away from the blaze with only second degree burns to the backs of his hands.

Speaking from his hospital bed, the French driver confirmed his appreciation of the halo.

“I wasn’t for the halo some years ago, but I think it’s the greatest thing that we’ve brought to Formula 1, and without it I wouldn’t be able to speak with you today,” he said.

What is the halo?

Introduced in 2018, the halo is a strong piece of protective equipment fitted above the driver’s head in the cockpit in all Formula 1 cars.

It is a three-pronged bar designed to stop or deflect large pieces of debris, such as trackside barriers or wheels from another vehicle, from entering the cockpit.

The FIA was committed to introducing some form of additional protection around the cockpit to reduce the risk of head injuries to drivers from flying debris.

All teams were consulted before it became mandatory and drivers tested the halo in practice sessions in the year leading up to its introduction.

Yet opinion was split.

Why is it controversial?

The introduction of the halo effectively brought an end to the idea of open cockpit racing.

Discussion at the time was centred around the aesthetics of the device the FIA wanted to introduce, rather than the safety benefits it would bring.

A transparent cockpit shield was seen as an alternative but proved unusable after Sebastian Vettel said the device made him dizzy after one lap.

The halo, however, was the only device that could deflect a wheel fired at it at a speed of 150mph and provide a largely unobstructed view for the driver.

Grand Prix Drivers' Association chairman Alexander Wurz said at the time: “We drivers respect the FIA's stand on safety and support its ongoing quest to make racing safer.