HBK's M series strain gauges for high alternating loads (1-LM16-6/350GE) are used to determine the strain on the component surface. Installed at different positions on the outer wing, the strain gauges are aligned in the fibre direction of the unidirectional (UD) bands of the fibre-plastic composite beam:
- The spar stub: Part of the spar that protrudes from the wing shell
- The root rib: Last rib at the root of the wing
- The wing shell: Strain Gauges will follow the course of the spar