A model of Boeing 747 passenger plane is displayed at the Asian Aerospace Expo in Hong Kong

 
A model of Boeing 747 passenger plane is displayed at the Asian Aerospace Expo in Hong Kong
A model of Boeing 747 passenger plane is displayed at the Asian Aerospace Expo in Hong Kong September 8, 2009. Airbus and Boeing are headed for their worst annual order tally in at least 15 years as struggling airlines cancel or defer almost as many planes as they are buying. REUTERS/Bobby Yip