What is the correct term for a group of flashing runway beacons?

The term "Group Flashing" refers specifically to a configuration of flashing runway beacons that operate in a synchronized manner to provide visual signals to pilots. This arrangement helps in identifying the runway and enhancing situational awareness, especially under low visibility conditions. The use of the term "Group" indicates that multiple lights are functioning together, creating a distinctive optical signal.

The context of other options includes terms that do not accurately describe the function or operation of these lights. “Flash Group,” for example, is not a recognized term within aviation standards or practices. Similarly, “Fixed Group” implies a static lighting system rather than one that flashes, which does not meet the requirements for beacons that are intended to signal dynamic movements. “Combined Flashing” also suggests a different mechanism of operation that may not align with standard terminology used in aviation for runway lighting systems.

In summary, "Group Flashing" is the correct term as it directly refers to multiple flashing beacons working in unison, fulfilling a specific and crucial role in aeronautical navigation.