[video] Metal with Memory: F-18 Wing Fold

https://www.youtube.com/watch?v=RgpuReoirzk


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.


https://www.nasa.gov/feature/metal-with-memory-f-18-wing-fold