Which capability does the CDI have on NDB approaches in the T-54?

The CDI (Course Deviation Indicator) is an essential instrument that provides guidance to pilots when navigating using NDB (Non-Directional Beacon) approaches. When conducting an NDB approach in the T-54, the correct understanding of how the CDI functions is crucial for successful navigation.

The capability that is accurately reflected by the answer is its dependence on the alignment of the bearing pointer. For the CDI to effectively indicate the aircraft's position relative to the NDB, the bearing pointer must be properly aligned with the correct course. This alignment ensures that the pilot can determine whether they are on the desired track towards the NDB or if they are deviating from that course. When the bearing pointer is correctly set, it provides essential guidance, allowing the pilot to make adjustments in heading to maintain the desired approach path.

This highlights the importance of the CDI in terms of its operational parameters during an NDB approach. Understanding this capability is vital for pilots to execute NDB approaches effectively and safely.