Fiber optic sensors are small and lightweight, multiplexing allows a significant reduction of cabling and at the same time the usage of hundreds or thousands of sensors in just one cable. The interrogation equipment is smaller and more rugged, and can be made to perform to harsh environments.

FBG sensors for strain, temperature, and acceleration can test structural integrity of wings and fuselage components, performance of engines, load on landing gear, and icing on wings and are easy to install.