Open‑Book NATOPS Practice Exam

Stall warnings for the MV-22 are crucial for maintaining safe flight operations, especially given the aircraft's unique tiltrotor design. The correct range for nacelle angles that trigger stall warnings is between 0 to 35 degrees. This range is important because it encompasses the operational configurations where the aircraft may transition from horizontal flight to vertical lift, which is critical for its versatility.

When the nacelles are at these angles, the aerodynamic characteristics of the MV-22 can lead to stall conditions under certain circumstances if not monitored and managed properly. Therefore, having stall warnings active throughout this range ensures pilots are alerted to potential stall conditions early, allowing them to take corrective actions to maintain safe flight.

This is particularly relevant during various phases of flight, including takeoff, landing, and when maneuvering at low speeds, where the risk of stalling is more pronounced. Understanding the thresholds for stall warnings helps pilots make informed decisions based on the aircraft's behavior and the flight parameters in which they are operating.