Which statement best defines Category A rotorcraft in the transport category?

Which statement best defines Category A rotorcraft in the transport category?

• A. A multiengine rotorcraft designed with engine and system isolation features specified in Part 29 and utilizing scheduled takeoff and landing operations under a critical engine failure concept, which assures adequate designated surface area and adequate performance capability for continued safe flight in the event of engine failure.
• B. A rotorcraft with guaranteed stay-up after engine failure.
• C. A rotorcraft designed for unpowered flight only.
• D. A rotorcraft with no engine-out capability.

Answer: (A)

Category A rotorcraft in the transport category are designed to continue safe flight and a safe landing after the loss of one engine. This means the aircraft must have engine-out capability, with enough power, control, and system redundancy to maintain safe flight when one engine is inoperative. The design requirements come from Part 29 and focus on isolating engine and system failures so a single failure doesn’t cascade into loss of control or inability to land safely. The use of the critical engine concept helps ensure the analysis targets the engine whose failure would hurt performance the most, and the overall design provides adequate surface area and performance margins for continued safe flight with one engine out, typically within the context of scheduled takeoff and landing operations. That combination—the engine-out capability, proper isolation of systems, and critical-engine considerations—best defines Category A. The other statements don’t fit because one implies guaranteed perpetual flight with an engine failure, which isn’t practical or required; another suggests the rotorcraft is only for unpowered flight, and the last denies any engine-out capability.

Category A rotorcraft in the transport category are designed to continue safe flight and a safe landing after the loss of one engine. This means the aircraft must have engine-out capability, with enough power, control, and system redundancy to maintain safe flight when one engine is inoperative. The design requirements come from Part 29 and focus on isolating engine and system failures so a single failure doesn’t cascade into loss of control or inability to land safely. The use of the critical engine concept helps ensure the analysis targets the engine whose failure would hurt performance the most, and the overall design provides adequate surface area and performance margins for continued safe flight with one engine out, typically within the context of scheduled takeoff and landing operations. That combination—the engine-out capability, proper isolation of systems, and critical-engine considerations—best defines Category A.

The other statements don’t fit because one implies guaranteed perpetual flight with an engine failure, which isn’t practical or required; another suggests the rotorcraft is only for unpowered flight, and the last denies any engine-out capability.