What information is typically included in an IFR Flight Data Entry (FDE)?

The correct information typically included in an IFR Flight Data Entry (FDE) encompasses crucial elements related to the flight's operational aspects. This includes aircraft identification, which provides a unique reference for the air traffic control system to track and manage the aircraft's movement. The type of aircraft is vital for understanding its performance characteristics and operational limits. Altitude is essential for maintaining safe separation from other aircraft and terrain, while speed is critical for ensuring compliance with air traffic control instructions and safe flight operations.

This comprehensive set of data ensures that air traffic controllers have the necessary information to safely manage and coordinate flights in an IFR environment. The focus on altitude and speed also reflects the need for maintaining safe operational parameters in busy airspace. In contrast, the other options include details that are not directly relevant to the real-time management of an aircraft during IFR flight operations, such as crew details, maintenance records, and passenger counts. These elements, while important in their own right, do not form the core of the immediate flight data entry used for IFR flights.