How are lockwires typically installed?

The double twist method is the standard practice for installing lockwires, which plays a critical role in securing fasteners, especially in aerospace applications. This method involves twisting the lockwire around the bolt or fastener in a way that ensures it holds securely while allowing for a degree of flexibility. A double twist provides optimal tension and ensures that the wire does not come loose due to vibrations or movement, which is a common concern in aircraft operations.

Using a double twist balances the need for security with ease of installation and removal. It is less complicated than the other methods mentioned, which may add unnecessary complexity to the process. The single twist method may not provide sufficient security, while the triple and quadruple twist methods can be overly robust, complicating removal and maintenance tasks. Thus, the double twist method is preferred for its combination of reliability and practicality in securing fasteners against accidental loosening in dynamic environments like aerospace.