Boeing last Wednesday concluded the remarkable 23-year run of the 757 passenger airplane by delivering the final one to Shanghai Airlines. The airplane is the 1,050 th Boeing 757. The 757 is one of seven commercial models that have sold more than 1,000 airplanes, and more than 1,030 of the 757s are still in service. Continuing the 757’s legacy of innovation, the airplane delivered is the first 7...