Where are anti-tear strips installed on aircraft and why?

Anti-tear strips are specifically installed under reinforcing tape over ribs, particularly in aircraft that experience speeds exceeding 250 mph. This strategic placement is crucial because higher speeds can lead to more significant aerodynamic forces acting on the aircraft structure. The anti-tear strips serve to reinforce the connection between the skin of the aircraft and the underlying ribs, enhancing the overall strength and durability of the aircraft's structure.

By preventing the tearing of the fabric or material covering the ribs, these strips help maintain the integrity of the aircraft's surface, which is essential for maintaining aerodynamic performance and ensuring safety at high speeds. Their use becomes especially vital in higher-performance aircraft, where the stresses on the structure are considerably greater than in slower, less demanding designs. This helps ensure that the reinforcing tape remains effective, extending the longevity and reliability of the aircraft's surface.