How many UHF memory frequencies can the RMU in the T-6 hold?

The correct answer is that the RMU (Radio Management Unit) in the T-6A can hold 20 UHF memory frequencies. This capability is significant for the T-6A, as it enables pilots to store and quickly switch between multiple communication frequencies, which is essential for efficient operational communication during flight. The ability to manage 20 frequencies allows for flexibility in mission planning and execution, especially in dynamic environments where communication needs may change rapidly.

Having this number of memory slots means that pilots can effectively manage their air-to-ground and air-to-air communications without needing to manually tune the radio frequently. This simplicity and efficiency contribute to maintaining situational awareness and focus on flight operations.