Deals expected to be in short supply at aviation's big event in Paris

The Paris Air Show, one of the biggest events in the aviation industry's calendar, will take place this week. More than 150,000 trade visitors hit Le Bourget airport for the last show two years ago.

While delegate numbers are still expected to be high, the number of high profile deals are expected to be down. Exhibitors include aerospace giants Boeing and BAE systems, while manufacturer Airbus will celebrate its 40th birthday there.