During a turn pattern, what is the recommended speed for establishing at 90 KIAS?

Establishing a speed of 90 KIAS (Knots Indicated Airspeed) during a turn pattern is recommended because it allows for optimal aircraft performance while maintaining precise control. At this speed, pilots can ensure adequate lift and responsiveness, enabling safe and effective maneuvering during turns.

Flying at the recommended speed helps maintain a balance between the stall speed and a speed that allows for responsive control inputs. If the speed were to be set too low, the aircraft could approach stall limits, especially during turns where increased load factors can significantly impact wing performance. Conversely, if the speed were to be too high, it could complicate handling characteristics and reduce the pilot's ability to maneuver effectively.

Establishing at 90 KIAS strikes a balance that enhances safety and aircraft handling, making it the recommended speed for executing a turn pattern effectively.