Is a low indicated airspeed sufficient to always produce a stall?

A low indicated airspeed is not always sufficient to produce a stall due to the importance of angle of attack in stall events. While indicated airspeed plays a significant role in aircraft performance, a stall occurs not just because of low speed, but when the angle of attack exceeds a critical value.

In many aircraft, if the angle of attack is controlled and kept below the critical threshold, it is possible to maintain controlled flight even with a low indicated airspeed. This means that the aircraft can still be maneuvered safely without necessarily stalling. Various environmental and operational factors can influence the stall behavior, such as configuration changes (like flaps and gear position), weight, and center of gravity. Therefore, while low indicated airspeed increases the potential for a stall, it does not guarantee one will occur if the angle of attack remains in a safe range.

The other choices do not encompass the overall relationship between speed, angle of attack, and stall dynamics as comprehensively as the selected answer does.