Eric Scott makes a training run at Knockhill racing circuit
An American stuntman claims to have completed the fastest ever jet-pack flight, at Knockhill racing circuit.
Eric Scott, 46, from Denver, managed about 43mph on Friday and has now been clocked by adjudicators from Fife police doing 54mph, in strong winds.
Mr Scott hopes his latest flight will be recognised as a record but officials at Guinness World Records are still considering his application.
He will make a third attempt at the Scottish motor show on Sunday.
Eric Scott flew across the Royal Gorge in southern Colorado
On his last visit to Scotland in July 2008, Scott completed a jet-pack flight, fuelled by hydrogen peroxide, from the roof of Glasgow's City Chambers to the other side of George Square.
In November 2008 he became the first man to fly across the Royal Gorge canyon in Colorado, USA, powered by a jet-pack.
He told BBC Scotland he must have been close to 80mph during that flight but it was not officially measured.
Mr Scott has made an application to the Guinness Book of World Records to officially include his latest speed attempt as a record.
No decision has yet been made.
The MotorFair Scottish motor show takes place against a backdrop of gloom in the British motor industry.
Last month the 2010 British International motor show was cancelled when car makers said they could not commit to the biennial event due to the impact of the recession on their businesses.
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