What parameter must be considered for engine-out climb performance during takeoff?

• A. The required obstacle clearance gradient must be met with one engine inoperative
• B. The maximum climb rate with all engines must be achieved
• C. Only fuel consumption matters
• D. The landing distance is the primary concern

Answer: (A)

The main idea is that engine-out climb performance during takeoff is judged by the required obstacle clearance gradient with one engine inoperative. After liftoff, if an engine fails, you must be able to climb at least a specified gradient to clear obstacles in the departure path. This gradient, usually expressed as feet per nautical mile or a percent, comes from the airport’s obstacle analysis and is tied to the weight, altitude, and conditions for the takeoff. The aircraft’s OEI climb data must show you can meet or exceed that gradient at the operating weight and conditions; if you can, the takeoff is acceptable under engine-out conditions. The other ideas—maximizing climb rate with all engines, focusing only on fuel consumption, or treating landing distance as the primary concern—don’t address the safety requirement for maintaining a safe climb when an engine has failed during takeoff.