Final answer:
IFR operations with a turbojet aircraft require enough fuel to reach the destination, plus fly to an alternate airport if necessary and an additional 45 minutes of fuel. Calculations must also include taxiing and contingency fuel, with considerations for weather, weight, air traffic control, and unforeseen delays.
Step-by-step explanation:
In the context of Instrument Flight Rules (IFR) operations with a turbojet aircraft, pilots must consider specific fuel reserve requirements when an alternate airport is involved. Turbojet aircraft must carry enough fuel to reach the destination airport, fly from the destination to the alternate airport if necessary, and thereafter for 45 minutes at normal cruising fuel consumption. Furthermore, the fuel load must account for taxiing and contingency fuel, which typically covers unforeseen delays or deviations from the planned route. Pilots in IFR conditions must also factor in weather conditions, the weight of the aircraft, and air traffic control requirements which may dictate different flight paths or holding patterns, leading to additional fuel burn.
The story of the Boeing 767 running out of fuel due to a metric conversion error emphasizes the critical nature of accurately calculating fuel requirements. This incident highlights the risks of fuel miscalculation and showcases the necessity of adhering to the fuel regulations for safety. To avoid such critical situations, stringent calculations and adherence to IFR fuel reserve requirements are imperative for ensuring a safe completion of the journey, considering obstacle clearance, potentially stronger than forecast headwinds, and other operational factors that could increase fuel consumption.