NASA is preparing to demonstrate its Fiber Optic Sensing System, or FOSS, and evaluate its performance at hypersonic speeds.
The agency said Wednesday the FOSS will be installed onto two research rockets, reaching a speed greater than Mach 5. The system’s first flights, to be conducted in summer 2025 in collaboration with the U.S. Air Force Test Pilot School in Edwards, California and the 586th Flight Test Squadron, will be used to assess its capability to measure strain and temperature on high-speed vehicles.
What Is Fiber Optic Sensing System?
FOSS is a system that utilizes a hair-thin fiber to gather strain and temperature data along its length. This advanced fiber significantly reduces the weight and space that came with other wire harnesses and sensors.
Testing NASA’s FOSS
Aside from the planned test flights, the new NASA system underwent rigorous testing in its early stages. On March 26, FOSS was subjected to vibration tests at the Armstrong Flight Research Center in Edwards, California, which verified its ability to operate during a rocket launch.
Advancing Hypersonic Technology
Under the Advanced Air Vehicles Program, NASA focuses on advancing hypersonics and intends to leverage FOSS to gather crucial data on vehicle strain and temperature during flight. This will give engineers critical information on the rocket or aircraft’s condition.
