While flying in VFR conditions, what action should be taken upon entering IMC?

The action of initiating a climb immediately upon entering Instrument Meteorological Conditions (IMC) is rooted in the need to quickly gain altitude to potentially escape low visibility and hazardous weather. By climbing, the pilot may be able to reach a higher altitude where the weather is better or where the aircraft can operate within the familiarity of visual flight rules. This is particularly important as IMC conditions can lead to spatial disorientation, loss of control, or collision with terrain if the aircraft is not at a safe altitude.

Maintaining altitude and navigating visually would not be advisable once IMC is encountered, as it could lead to an increased risk of terrain or obstacle encounters. Declaring an emergency could be an appropriate step in some situations, but it does not directly address the immediate need for altitude management. Executing a descent and turn around could place the pilot in an even more precarious position, especially if they lose visual reference while descending. Therefore, initiating a climb upon entering IMC is a proactive strategy to enhance safety in uncertain and potentially hazardous conditions.