What is the primary purpose of a tension regulator in a flight control cable system for an all-metal aircraft?

In a flight control cable system for an all-metal aircraft, the primary purpose of a tension regulator is to maintain a set tension in the cable. Maintaining proper tension is critical for ensuring that the flight control surfaces respond correctly to pilot inputs. If the cable tension fluctuates, it can lead to undesirable control characteristics, such as sluggish response or excess play, which can compromise the aircraft’s handling and safety.

By using a tension regulator, the system automatically adjusts to account for changes in temperature, wear, and elongation that can occur over time and usage. This regulation helps ensure that the controls remain sensitive and effective, contributing to overall flight safety and performance.

While reducing cable wear, increasing control responsiveness, and facilitating quick adjustments are important considerations in the design of flight control systems, the primary job of a tension regulator is specifically to maintain the appropriate tension, thereby ensuring reliable control mechanism operation.