Eventually the fuselage or wings will get enough cracks they aren't economic to repair as the pressurization cycles accumulate. At some point the risk of massive failure will outweigh the cost to replace, and they will be broken up.
Very few DC-8 or 707's left, ditto for 727's and early model 737's. They have all exceeded their economic life, and were broken up for the aluminum. I believe there are two complete Lockheed Super Constellations left -- one in Australia and The Columbine, Eisenhower's AF1 that was still in flying condition in the early 2000's at the Air Force Museum in Dayton, OH. _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
