What is the maximum speed for operation in icing conditions?

In the King Air 350, the maximum speed for operation in icing conditions is established to ensure safety and airplane performance when encountering frozen precipitation. The selected answer of 170 KIAS is based on operational guidelines that take into account aircraft limitations designed to minimize the risk of ice buildup on the wings and control surfaces.

Exceeding this speed in icing conditions could result in insufficient aerodynamic control due to the increased likelihood of ice accumulation, which can degrade performance and cause handling issues. Operating within the specified maximum speed allows the crew to maintain better control of the aircraft and ensures that the de-icing systems can effectively prevent ice from compromising flight safety.

Therefore, the limit set at 170 KIAS is a critical consideration for pilots when flying in environments where icing conditions may be present. The other options, while they may represent plausible speeds, do not align with the specified limitation for managing safety in those conditions.