Our annual survey of the world's Top 100 aerospace companies, compiled in conjunction with PricewaterhouseCoopers, shows that the fall-out from the global economic and financial chaos has filtered through to companies' bottom lines, with profitability of the industry's leading manufacturers significantly reduced despite stable revenues. The authors reveal which sectors of the industry were the worst affected in 2009, who rose and fell in the rankings - and who has taken over the No 1.