Ice Is Where You Find It

摘要

This time of year, pilots' main weather worry turns to air-frame icing. The thunderstorms are (mostly) gone, replaced by layers and layers of moisture-laden clouds. Depending on where and how high you fly, there be ice in them there clouds. Or not. Much has been said recently about a legal opinion rendered by the FAA's Eastern Regional Counsel, redefining what constitutes "known icing" with the worst-case scenario of potentially grounding for the winter a bunch of airplanes not approved for flight into known icing.