Aerospace machining is always considered one of the toughest of all.  Boeing projects Current Market Outlook (CMO) , a demand for more than 35,000 new airplanes over the next 20 years, valued at $4.8 trillion. The company released its annual CMO in Paris, forecasting the world fleet to double over the next two decades. Both passenger traffic and cargo traffic are expected to grow 5 percent annually. Since the beginning of the jet age, Boeing has produced a long-term market outlook which was first shared publicly in the early 1960s. The CMO is the longest running complete worldwide jet forecast and is regarded as the most respected and comprehensive analysis of the aviation industry.