Which suffix signifies that an aircraft has a transponder with Mode C and is only TACAN capable?

The suffix that signifies an aircraft has a transponder with Mode C and is only TACAN capable is represented by the letter A. In aviation terminology, specific suffixes are used to classify and communicate the capabilities of an aircraft's transponder system.

Mode C transponders are important because they provide altitude information in addition to identification, enhancing situational awareness for air traffic controllers. The inclusion of the suffix 'A' indicates that the aircraft has this capability; however, it is specifically limited to TACAN (Tactical Air Navigation) and does not include other navigation systems.

Understanding the designations helps ground controllers and fellow pilots quickly ascertain the equipment and capabilities of the aircraft in question, contributing to safer and more efficient air traffic operations.