How long can the King Air 350 operate on one engine without exceeding performance limits?

The King Air 350 is designed to operate under specific performance limitations, particularly when it comes to single-engine operation. In the event of an engine failure, the aircraft can maintain safe flight for a limited duration. The correct answer indicates that the King Air 350 can operate on one engine for up to 15 minutes without exceeding its performance limits. This time frame is established to ensure that the aircraft can still maintain controllability and altitude while adhering to safe operational parameters.

Operating beyond this limit could lead to unsafe conditions, as the remaining engine would be under increased stress, and the available performance would degrade. Understanding the timeframe for single-engine operation is critical for pilots, as it plays a significant role in emergency planning and decision-making. Knowing this limit allows pilots to effectively manage the situation and expedite a return to a safe landing environment, ensuring the safety of all onboard.