What secures the BAK-15 stanchions in the upright position when elevated?

The over-center locking arm mechanism is the feature that secures the BAK-15 stanchions in the upright position when they are elevated. This mechanism operates by leveraging design principles that create a stable configuration when the stanchions are lifted. As the stanchion is raised, the over-center action locks it securely into place, preventing any unintended movement or collapse during operation.

This is critical for ensuring safety and stability in environments where the BAK-15 system is used, such as in aviation or other heavy equipment contexts. The design ensures that once the stanchions are in the elevated position, they remain securely locked until intentionally released, which is essential for operational reliability.

While other options like locking pins, bracing cables, and hinged supports may play roles in stanchion support in different contexts, the over-center locking arm mechanism specifically addresses the need for a robust locking system in this particular application.