If primary trim is inoperable, is configuration trim still available?

When primary trim becomes inoperable, configuration trim is not available for use. This is because configuration trim systems rely on the primary trim systems for their operation and functionality. Primary trim is designed to manage the principal aerodynamic forces acting on an aircraft, and when it fails, the backup systems like configuration trim cannot effectively compensate for it. This ensures that the aircraft remains within its safe operational parameters by preventing the potential for excessive control surface movement or instability that could result from relying on a malfunctioning primary trim.

Understanding the relationship between primary and configuration trim is crucial for pilots in ensuring the overall control and safety of the aircraft. In situations where primary trim is compromised, the focus shifts to troubleshooting the primary system rather than utilizing configuration trim, which would not function properly under these conditions.