What is the cruise speed of a Cessna 172?

The cruise speed of a Cessna 172 is approximately 120 knots, which is within the typical performance specifications for this aircraft. This speed allows for efficient flight planning and fuel management, making it an ideal choice for cross-country flights and general aviation purposes. The Cessna 172 is designed for optimal performance at this speed, balancing power and fuel efficiency while providing good handling characteristics.

Other options present varying speeds that don't align with the typical performance metrics for the Cessna 172. For instance, a cruise speed of approximately 90 knots would be too slow and not representative of the aircraft's design capabilities, while the speeds of 140 knots and 100 knots, although closer, also don't match the manufacturer's specifications for this aircraft. Thus, understanding the cruise speed helps in planning flights and understanding the aircraft's endurance and efficiency during operations.