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 by Staff Writers Edwards AFB CA (SPX) Aug 23, 2018
Engineers from NASA's Glenn Research Center, NASA's Armstrong Flight Research Center and Boeing have successfully used shape memory alloys (SMA) to move a full-sized wing section of an F/A-18 Hornet. The 300-pound wing section was removed from an F/A-18 at NASA Armstrong in Edwards, California, enabling the team to prove a full wing section could be folded using a newly developed nickel-titanium-hafnium high temperature SMA torque-tube actuator, capable of applying 5,000-inch-pounds of torque. Beginning at the horizontal position, the SMA mechanism was electrically heated and cooled on command to allow the wing to move 90 degrees up and down. More importantly, researchers were able to move the wing section to any selected position within that sweep with very precise control. Testing using SMA actuators and the F/A-18 wing at NASA Glenn will continue through the summer. The next step is to increase the SMA torque capability to 20,000-inch-pounds, which will include both the leading and trailing edges of the wing section. This successful test is another milestone for NASA's Spanwise Adaptive Wing Project, which is studying the in-flight bending or shaping sections of an aircraft's wings. The ability to shape wings could increase aircraft performance by reducing weight and drag, while improving aircraft control.
BAE wins contract for airborne countermeasure systems Washington (UPI) Aug 17, 2018 BAE Systems Information and Electronic Systems Integration of Nashua, N.H., has received a $70.4 million order in support of the PMA272 Air Expendable Countermeasures Program. Funding for the deal comes from the Navy and Marine Corps fiscal 2018 ammunition procurement funds; Air Force fiscal 2018 aircraft procurement funds; Navy and Marine fiscal 2017 ammunition funds; and Air Force aircraft procurement funds for 2016 and 2017. PMA272 Air Expendable Countermeasures are designed to protec ... read more
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