What is the purpose of pigtails in safety wire applications?

The purpose of pigtails in safety wire applications is to provide a secure hold. When safety wire is applied correctly using pigtails, it ensures that fasteners remain tightly fastened under conditions that might otherwise loosen them, such as vibration or motion. The method of twisting the wire into pigtails creates a reliable and robust connection that maximizes the friction on the fastener and prevents it from loosening over time. This is particularly critical in aviation applications where safety and structural integrity are paramount.

While aesthetics and weight considerations might play roles in some engineering applications, they are not relevant to the function of pigtails in safety wire use. Additionally, while disassembly is a factor in maintenance, the primary role of pigtails is to secure components rather than facilitate their removal.