How many VHF NAV presets can the RMU store?

The RMU (Radio Management Unit) in the T-6 aircraft is designed to provide pilots with efficient management of communication and navigation frequencies. Specifically, it can store 10 VHF NAV presets, allowing pilots to quickly access commonly used navigation frequencies during flight. This feature is crucial for enhancing situational awareness and simplifying the management of multiple frequencies, particularly in complex airspaces.

The capability to store 10 VHF NAV presets enables pilots to preload their most frequently used frequencies, reducing the time spent tuning the radio while flying. This design is intentional as it supports the need for rapid frequency changes without diverting too much attention from other critical tasks during flight operations. The option reflecting a different number of presets does not accurately represent the RMU’s storage capacity, as it is specifically engineered to accommodate a maximum of 10 presets.