What is a key element of IFR flight planning?

The key element of IFR flight planning is operational procedures under Instrument Flight Rules. This aspect is crucial because IFR flight requires pilots to operate their aircraft primarily by reference to instruments, rather than visual cues. This necessitates thorough planning to ensure that all procedures, regulations, and guidelines are followed to maintain safety and compliance with air traffic control.

In IFR conditions, pilots must have a clear understanding of airways, altitudes, the use of instruments, and the protocols for communication with air traffic control. This careful planning includes route selection, fuel requirements, and alternate airfields. This structured approach ensures that pilots can navigate safely through periods of reduced visibility and adverse weather conditions.

The other options, while relevant to flight planning in general, do not encapsulate the core focus of IFR flight planning. Visual navigation techniques pertain more to VFR (Visual Flight Rules) operations. Weather predictions are important for all types of flight but are not specific to the operational procedures integral to IFR. Daylight flying requirements are also associated with VFR flying, where pilots rely on visual cues during daylight hours. Thus, operational procedures are fundamental to IFR and encompass the specific regulations and practices needed for successful instrument navigation.