What is included in an abbreviated IFR departure clearance?

An abbreviated IFR departure clearance typically includes the destination airport, the assigned altitude, and details about the Departure Procedure (DP), which can encompass the name of the procedure, the number associated with it, and any specific transitions. This information is crucial as it provides pilots with the necessary routing and altitudes to safely depart and integrate into the air traffic system while also ensuring compliance with procedural requirements at busy airports.

Including the departure procedure is particularly important because it encompasses the planned routing after takeoff, which helps manage air traffic flow and adherence to airspace regulations. The clearance is designed to allow for efficient communication and understanding between air traffic control and the pilots, streamlining the process of departure under IFR conditions.

Other options, while they may contain relevant information in broader contexts, do not encapsulate the core components of the abbreviated clearance as effectively as option B. For example, while knowing the aircraft type or expected flight time may be helpful, they are not standard components of the clearance itself. Therefore, option B is the most accurate reflection of what is included in an abbreviated IFR departure clearance.