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Carburetor icing
affects engines with carburetors, and air intake blockage, which affects both carbureted and fuelinjected engines.
Light
The rate of accumulation may create a problem if flight is prolonged in this environment (over one hour).
Scud Running
This occurs when a pilot tries to maintain visual contact with the terrain at low altitudes while instrument conditions exist.
The “Blossom Effect”
Motion is invaluable in drawing the eye’s attention. Yet two aircraft on a collision course will appear virtually motionless to each other, maintaining a constant relative bearing.
Taxi to—hold short
A clearance to begin taxiing, but enroute to the taxi clearance limit you must hold short of another taxiway or a crossing runway as specified by the controller.
Spatial Disorientation
Spatial disorientation is an erroneous sense or mistaken perception of one's position and motion relative to the earth.
Weeping wing
Deicing systems pump fluid from a reservoir through a mesh screen embedded in the leading edges of the wings and tail. depend on airflow as well, and if the primary air intake ices, an alternate air door either opens automatically
Trace
Ice becomes perceptible. Rate of accumulation is slightly greater than the rate of sublimation.
SIGMET
An in-flight weather advisory that is considered significant to all aircraft. SIGMET criteria include severe icing, severe and extreme turbulence, duststorms, sandstorms, volcanic eruptions, and volcanic ash that lower visibility to less than 3 miles.
Structural Ice
Pressure on the elevator may help to reattach airflow to the aileron. How quickly a surface collects ice depends in part on its shape. Thin, modern wings will be more critical with ice on them than thick, older wing sections.
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