How much altitude is lost during a 360° turn with the aircraft trimmed for 125 KIAS at a 30° bank angle?

When an aircraft is trimmed for a specific airspeed, such as 125 Knots Indicated Airspeed (KIAS), and it performs a 360° turn at a 30° bank angle, it will generally lose altitude due to the increased load factor and the aircraft needing to maintain level flight.

In a 30° bank turn, the load factor increases to approximately 1.15, which causes the aircraft to use more lift to counteract this load factor. Since the aircraft is maintaining a constant speed, the pilot has to provide additional lift, which can lead to a descent if the pilot does not increase the power or pitch up slightly to compensate for the lost altitude.

The typical loss of altitude during a standard 360° turn can vary depending on the aircraft type and specific operational circumstances, but a turn at a 30° bank angle at a speed around 125 KIAS generally results in a loss of altitude of about 2,000 feet for that complete rotation. This turnout for most aircraft indicates a 1,000-foot-per-minute rate of descent while making the turn.

Thus, the answer indicating a loss of 2,000 feet per turn reflects a well-recognized standard for this specific combination of speed and