In aviation, what is the term "bucket speeds" used to describe?

"Bucket speeds" specifically refers to the range of indicated airspeeds that are critical for single-engine operation, particularly in multi-engine aircraft. This concept is vital for pilots to understand, as it informs them of the safe operating speeds that must be maintained when one engine is inoperative. Knowing these speeds is essential for preventing a stall or maintaining control, which could otherwise lead to an emergency situation.

Understanding the "bucket speeds" enables pilots to carefully manage their aircraft's performance in scenarios where power from one engine is lost, ensuring they remain within a safe and manageable speed range. This aids in keeping the aircraft stable and allows for effective handling, ultimately contributing to safe flight operations.