Two violinists play on stage, as Boeing raised a curtain to unveil the 747-8 jumbo passenger jet to thousands of employees and guests, at the company's Everett, Washington commercial airplane manufacturing facility, Feb 13, 2011. [Photo/Agencies]

Boeing employees and guests reach up to feel and take a closer look at one of the four GEnx-2B67 turbine engines on the brand new 747-8 jumbo passenger jet that was unveiled at the company's Everett, Washington commercial airplane manufacturing facility, Feb 13, 2011. [Photo/Agencies]