Which statement correctly describes the difference in FDP between a 2-sector operation and a 6-sector operation?

Which statement correctly describes the difference in FDP between a 2-sector operation and a 6-sector operation?

• A. The 2-sector FDP is longer by 2 hours.
• B. The 6-sector FDP is longer by 2 hours.
• C. They are the same length.
• D. The 6-sector FDP is longer by 1 hour.

Answer: (A)

FDP length is tied to how many sectors are flown in a single duty. In this framework, each extra sector beyond the first two cuts the allowed FDP by 0.5 hour to account for the added workload and fatigue risk. A sector means one takeoff and landing, and the FDP starts when the crew reports for duty and ends when they’re released for rest. Between a 2-sector operation and a 6-sector operation there are four more sectors in the latter. Four extra sectors × 0.5 hour per sector = 2 hours less FDP for the six-sector case. That means the two-sector operation has a longer FDP by two hours, which is why the statement choosing that the two-sector FDP is longer by two hours is the best answer.

FDP length is tied to how many sectors are flown in a single duty. In this framework, each extra sector beyond the first two cuts the allowed FDP by 0.5 hour to account for the added workload and fatigue risk. A sector means one takeoff and landing, and the FDP starts when the crew reports for duty and ends when they’re released for rest.

Between a 2-sector operation and a 6-sector operation there are four more sectors in the latter. Four extra sectors × 0.5 hour per sector = 2 hours less FDP for the six-sector case. That means the two-sector operation has a longer FDP by two hours, which is why the statement choosing that the two-sector FDP is longer by two hours is the best answer.