Ferrari's main aim of testing the Halo cockpit protection was to check the visibility of the concept.

Kimi Raikkonen ran the proposed cockpit protection during his installation lap on the penultimate day of pre-season testing at the Circuit de Barcelona-Catalunya, with the design screwed in to the top of the chassis where cooling vents sit either side of the cockpit. The final design proposal would see it integrated in to the chassis itself with hinges.

While the prototype used on Thursday was made of carbon fibre and wider than Ferrari expects any final design to be, Raikkonen reported no problems with visibility while completing his first lap of the day.

Ferrari produced the prototype itself, but will not run it again during this week's test having had the initial feedback on its impact on visibility.

Follow live coverage and timing from pre-season testing here

GALLERY: Pre-season testing

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Andrew Lewin

Andrew first became a fan of Formula 1 during the time when Michael Schumacher and Damon Hill were stepping into the limelight after the era of Alain Prost, Nigel Mansell and Aryton Senna. He's been addicted ever since, and has been writing about the sport now for nearly a quarter of a century for a number of online news sites. He's also written professionally about GP2 (now Formula 2), GP3, IndyCar, World Rally Championship, MotoGP and NASCAR. In his other professional life, Andrew is a freelance writer, social media consultant, web developer/programmer, and digital specialist in the fields of accessibility, usability, IA, online communities and public sector procurement. He worked for many years in magazine production at Bauer Media, and for over a decade he was part of the digital media team at the UK government's communications department. Born and raised in Essex, Andrew currently lives and works in south-west London.

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