Which statement best describes the relationship between turbojet and turboprop in Part 135 landing stop requirements?

• A. Turbojet: 60%, Turboprop: 70%
• B. Turbojet: 70%, Turboprop: 60%
• C. Turbojet: 50%, Turboprop: 60%
• D. Turbojet: 60%, Turboprop: 60%

Answer: (A)

In Part 135, landing stop requirements are set to reflect the different performance characteristics of turbojet versus turboprop aircraft. The percentage indicates how much of the planned flight distance must be capable of ending at a safe landing stop if an abnormal or engine-out situation occurs. Turbojets typically have better overall performance and shorter required landing distances in planning emergencies, so they’re assigned a smaller cushion, 60%. Turboprops, with their distinct performance profile, require a larger safety margin, hence 70%. So this pairing shows turboprops needing a bit more runway-planning cushion than turbojets. Other options would swap those values or make them equal, which wouldn’t align with the way the rule distinguishes the two propulsion types for safety planning.