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Motorsport Week
Home Single Seater Formula 1

Roll hoops strengthened for 2023 after Zhou accident

by Phillip Horton
3 years ago
A A
1
Zhou was worried about hands, fire risk, in Silverstone crash

Guanyu Zhou (CHN) Alfa Romeo F1 Team C42 crashes at the start of the race. British Grand Prix, Sunday 3rd July 2022. Silverstone, England.

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Formula 1 cars will feature stronger roll hoops from 2023 following the FIA’s investigation into Zhou Guanyu’s accident at the British Grand Prix.

Zhou was involved in a terrifying accident at the start at Silverstone last month after making contact with Mercedes’ George Russell on the approach to Abbey.

Zhou’s car was flipped and dug into the tarmac, before rolling through the gravel and over the barrier, with the roll hoop breaking in the process.

An FIA investigation concluded that the pointed top of the roll hoop digging into the tarmac contributed to the high horizontal force, leading to its detachment from the car.

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It also discovered that the current wording of the regulations allows teams to homologate their roll hoops with forces ‘acting through a lower point than intended’ – the result being that the roll hoop is then resisting forces lower than originally intended by the regulations.

As a consequence a rounded top of the roll hoop will be mandatory, which will reduce the chance of it digging into the ground during an accident.

The FIA has also altered the tests surrounding roll hoop homologation, including one where the load will push the roll hoop in a forward direction.

It was outlined that as a medium-term objective, intended for the 2024 season, there will be a significant overhaul of the roll hoop tests to ensure cars can resist significantly more severe loads.

Tags: AlfaRomeoF1
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Comments 1

  1. Anthony Wood says:
    3 years ago

    Zhou’s crash would have been fatal if the car was travelling forwards not backwards. The halo would have dug into the gravel and the driver’s head would have stood no chance. Has this even been discussed in these safety meetings?

    Reply

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