Icing Flashcards
Water can remain super cooled down to - x degrees.
40 degrees.
At what speed is ice more likely?
Higher speeds.
What ice forms when the water droplets are between 0 and - 15 degrees?
Clear ice,
Is clear ice easy or hard to remove?
Hard.
What ice forms at water temperatures colder than -15 degrees?
Rime ice.
What days can hoar frost form?
Clear days.
What happens as fuel cools in the wing and causes icing to occur around the wing at warmer temperatures?
Cold soaking.
When does freezing rain occur?
When a cold front passes over a cold front and it rains.
When is snow an issue?
On the ground.
What ice forms with large super cooled water droplets?
Clear ice.
What ice forms in small super cooled water droplets?
Rime ice.
Where is high altitude ice crystal icing most common?
At the tops of cumulonimbu.
Depending on the freezing level,
Blank ice is possible between FZL to
+5000’, above that blank ice could
occur.
Clear - rime
What ice is normally seen in low level cloud?
Clear.
What two cloud types is ice most common?
Cumulonimbus/nimbostratus
Where can icing occur well above 0’?
Carb ice in a piston engine.
Think ahead of the areas where ICI (Ice Crystal Icing) can be expected and avoid thunderstorms in the upwind/downwind direction.
Upwind.
Air mass type (heat thunderstorms) - more common in x time.
Frontal type - more common in x time
Summer / winter.
At what levels does icing predominantly form in a CB cloud?
Middle
What creates Ice crystal icing in cbs?
Sublimation.
