During attitude instrument flying, what should you do upon detecting large deviations from desired parameters?

In attitude instrument flying, the primary focus is on maintaining precise control of the aircraft despite the lack of visual references. When you detect large deviations from desired parameters, it is crucial to take immediate corrective action. This prompt response helps to prevent the situation from deteriorating further, ensuring that the aircraft remains in safe and controlled flight.

Correctly initiating a correction upon noticing significant deviations mitigates the risks associated with uncoordinated flight, such as loss of control, altitude loss, or undesired turns. This principle is foundational in instrument flying—recognizing that timely adjustments to your flight control inputs not only helps restore proper attitudes but also keeps you within safe operational limits, which is vital for safe and successful instrument flying.

Other options would not be as effective. For instance, ignoring small deviations can lead to larger issues as the situation may progressively worsen. Waiting for the next check before acting might introduce delays that could exacerbate the problem and jeopardize safety. Increasing altitude in response to a deviation may not always provide a solution and could potentially lead to breaking necessary altitude limits or overcompensating for the error. Thus, the need for immediate correction is paramount in maintaining proper flight control during instrument flying.