The Boeing Dreamliner 787 this week passed its much-anticipated ultimate-load wing up-bending test with flying colors. During the testing, loads were applied to the airframe to replicate 150 percent of the most extreme forces the airplane is ever expected to experience while in service. The wings were flexed upward by approximately 25 feet (7.6 meters) during the test. Boeing said that more extensive analysis and review are required.
During each second of the more than two-hour test, thousands of data points were collected to monitor the performance of the wing
Boeing provided no new details on the design changes that boosted the strength of the wing-to-fuselage connection. It had been reported two years ago that design changes were required.
Photo shows ultimate-load wing up-bending test on the 787 Dreamliner static test unit. Photo Source: Boeing