The Boeing company (Boeing Co., BA) over the next 20 years the world jet market scale will reach $4.5 trillion, compared with the 34000 new commercial jet aircraft; This from last year to make the size of the market expectations raised nearly $500 billion, because the jet price rise and inflation continued.

　　(Boeing Boeing Commercial Airplanes, ltd. Airplanes), vice President of marketing at Randy Tinseth said Tuesday in a speech in London, the degree of breadth, depth and diversity of the global aviation market is stronger than ever before. But he warned that in view of the European economic downturn, and the slowdown in the global air cargo market, global airlines will face trouble in the future.

　　Boeing expects the economy will grow by 2.5% this year for the rest of the world, but the company expects the global economy over the next 20 years the average annual growth rate will reach 3.2%.

　　This growth will be driven by air travel the number of each year increased by 4%, air passenger traffic growing at 5% a year, prompting double airline passenger Numbers over the next 20 years, but in the short term will face uncertainty.

　　Boeing now expects 41% of new delivery will be used to replace old, is currently operating fuel jet.

　　In general, Boeing expects global demand for passenger jets over the next 20 years to 500 more than expected last year.

　　Boeing is also expected to due to overall economic growth is slowing, is expected to average annual volume growth over the next 20 years will be 5.2%, lower than expected 5.6% last year; But freight fleet size will still be an increase almost double from the current 1740, 3200 aircraft.