Boeing Co.

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In this July 14, 2010 photo, a Boeing B-17F Flying Fortress that is undergoing restoration is parked in front of the massive doors of the Boeing Co.'s historic "Plant 2," in Seattle. After giving birth to some of the world's most significant aircraft, the outdated facility is scheduled to be torn down this fall. (AP Photo/Ted S. Warren)

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In this photo taken July 14, 2010, a Boeing B-17F Flying Fortress that is undergoing restoration is parked in front of the massive doors of the Boeing Co.'s historic "Plant 2," in Seattle. After giving birth to some of the world's most significant aircraft, the outdated facility is scheduled to be torn down this fall. Behind the B-17 is a restored Lockheed Super Constellation airliner. (AP Photo/Ted S. Warren)

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In this photo taken July 14, 2010, Bill Wiesner, a retired Boeing machinist, prepares rivits for an engine panel on the Boeing B-29 Superfortress at right that he is helping restore at Boeing Co.'s historic "Plant 2" in Seattle. After giving birth to some of the world's most significant aircraft, the outdated facility is scheduled to be torn down this fall, and a new home for the work of restoring the B-29 and other planes will need to be found. (AP Photo/Ted S. Warren)

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In this Dec. 20, 1943 photo from the Boeing Co. archive, B-17G Flying Fortress airplanes are shown being built at Boeing's historic "Plant 2" in Seattle. After giving birth to some of the world's most significant aircraft, the outdated facility is scheduled to be torn down in the fall of 2010. (AP Photo/Courtesy Boeing Co.)

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In this 1937 photo from the Boeing Co. archive, Boeing's historic "Plant 2," which opened in 1936, is shown in Seattle. After giving birth to some of the world's most significant aircraft, the outdated facility is scheduled to be torn down in the fall of 2010. (AP Photo/Courtesy Boeing Co.)

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In this 1937 photo from the Boeing Co. archive, Boeing's historic "Plant 2," which opened in 1936, is shown in Seattle. After giving birth to some of the world's most significant aircraft, the outdated facility is scheduled to be torn down in the fall of 2010. (AP Photo/Courtesy Boeing Co.)

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In this June 16, 1945 photo from the Boeing Co. archive, Boeing's historic "Plant 2" in Seattle, is shown covered in camouflage designed to make it look like a residential neighborhood when viewed from the air to protect it from air-based attacks during World War II. After giving birth to some of the world's most significant aircraft, the outdated facility is scheduled to be torn down in the fall of 2010. (AP Photo/Courtesy Boeing Co.)

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In this Dec. 20, 1943 photo from the Boeing Co. archive, B-17G Flying Fortress airplanes are shown being built at Boeing's historic "Plant 2" in Seattle. After giving birth to some of the world's most significant aircraft, the outdated facility is scheduled to be torn down in the fall of 2010. (AP Photo/Courtesy Boeing Co.)

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In this 1942 photo from the Boeing Co. archive, B-17E Flying Fortress airplanes are shown being built at Boeing's historic "Plant 2" in Seattle. After giving birth to some of the world's most significant aircraft, the outdated facility is scheduled to be torn down in the fall of 2010. (AP Photo/Courtesy Boeing Co.)

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In this July 12, 1966 photo from the Boeing Co. archive, the first Boeing 737 airplane is shown being built at Boeing's historic "Plant 2" in Seattle. After giving birth to some of the world's most significant aircraft, the outdated facility is scheduled to be torn down in the fall of 2010. (AP Photo/Courtesy Boeing Co.)

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In this March 19, 1954, photo from the Boeing Co. archive, a Boeing B-52 Stratofortress airplane is rolled out of Boeing's historic "Plant 2" in Seattle. After giving birth to some of the world's most significant aircraft, the outdated facility is scheduled to be torn down in the fall of 2010. (AP Photo/Courtesy Boeing Co.)

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In this March 31, 1944 photo from the Boeing Co. archive, a B-17G Flying Fortress airplane is shown at Boeing's historic "Plant 2" in Seattle, with camouflage used to hide the building from aerial attacks during World War II visible on the roof. After giving birth to some of the world's most significant aircraft, the outdated facility is scheduled to be torn down in the fall of 2010. (AP Photo/Courtesy Boeing Co.)

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This undated photo provided by Boeing shows Boeing Co.'s most famous World War II aircraft, the B-17G Flying Fortress heavy bomber. The aircraft will be a centerpiece of a new exhibit for the latest expansion of the National World War II Museum in New Orleans. Construction of the new $35 million exhibit will be formally announced Friday, Aug. 27, 2010. (AP Photo/Boeing)

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ASSOCIATED PRESS PHOTOGRAPHS This Boeing-provided artist rendering shows what the U.S. Freedom Pavilion will look like upon completion. One of Boeing Co.'s most famous World War II aircraft will be the focus of an exhibit in the National World War II Museum addition.

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** FILE ** Boeing Co. Chief Executive Officer Jim McNerney (right) and Jim Albaugh, chief executive officer of Boeing Commercial Airplanes, pose with a Boeing 787 after it landed for the first time outside the United States in Farnborough, England, on July 18, 2010. (AP Photo/Sang Tan, file)

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A Boeing Co. McDonnell Douglas F-15E Strike Eagle fighter jet is on display on the third day of the Farnborough International Airshow in Farnborough, England, on Wednesday, July 21, 2010. The Farnborough International Airshow is being held from July 19-25. Photographer: Chris Ratcliffe/Bloomberg