Leading architect Sir Terry Farrell claimed a new runway would kick start an Olympic-style boost for the economy of South London.
Sir Terry has been commissioned to draw-up plans for expanding the airport as part of a new campaign called "Gatwick Obviously".
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His top speed is believed to be the highest ever recorded in the UK by a rider carrying a pillion passenger.
The mayor took time out from City Hall to join Conservative party workers handing out leaflets in Uxbridge and South Ruislip.
No matter where you look, London's population is getting older - with the exception of one of the capital's boroughs.