How does clear icing impact aircraft performance?

Clear icing has a significant impact on aircraft performance, primarily by increasing stall speeds and decreasing lift. When ice accumulates on the wings and other surfaces of an aircraft, it alters the aerodynamic shape and smoothness that is crucial for generating lift. As the ice builds up, it can disrupt the airflow over the wings, leading to an increase in stall speed. This means that the aircraft must reach a higher airspeed to maintain level flight, making it more difficult to operate safely, particularly during critical phases such as takeoff and landing.

Additionally, the presence of clear ice can create a heavier, more compact form of ice that adheres firmly to the surface; this makes it more challenging to remove and can significantly affect handling characteristics. Consequently, pilots may experience reduced control and increased drag, which can further exacerbate the issues of decreased performance and increased stall speeds. Overall, clear icing poses serious risks by compromising the aircraft’s ability to fly efficiently and safely.