During calm winds, what is a typical airspeed for cruising at 9,000 feet?

At 9,000 feet, a typical cruising airspeed for light general aviation aircraft often falls in the range of 120 to 140 knots, depending on the specific aircraft and its performance characteristics. The chosen airspeed of 140 knots is well within this range and reflects a comfortable cruising speed that allows for efficient fuel consumption and stability during flight.

At this altitude, maintaining a speed of 140 knots helps ensure that the aircraft can achieve the necessary lift while still being manageable for pilots. Additionally, this speed provides a good balance between performance and safety, allowing for adequate reaction time in the event of any unexpected changes in flight conditions, which is particularly important in calm weather when other factors like turbulence or thermal activity are minimized.

In general, cruising speeds may vary based on aircraft type, weight, and mission requirements, but 140 knots is a practical and commonly used figure for many general aviation operations at that altitude.