11-06-2007, 09:40 PM
Quote: 2.4 Airframe Icing
Report icing to ATS and, if operating IFR, request a new routing or altitude if icing will be a hazard. Give your aircraft identification, type,
location, time (UTC), intensity of icing, type, altitude or flight level, and indicated airspeed. (See the suggested format on the back cover of
the CFS.)
The following describes icing and how to report icing conditions:
INTENSITY ICE ACCUMULATION
Trace Ice becomes perceptible. The rate of accumulation is slightly greater than the rate of sublimation. It is not hazardous, even though
de-icing or anti-icing equipment is not used, unless encountered for an extended period of time (over 1 hour).
Light: The rate of accumulation may create a problem if flight is prolonged in this environment (over 1 hour).
Moderate: The rate of accumulation is such that even short encounters become potentially hazardous, and use of de-icing or anti-icing
equipment or diversion is necessary.
Severe: The rate of accumulation is such that de-icing or anti-icing equipment fails to reduce or control the hazard. Immediate diversion
is necessary.
*Rime ice: Rough, milky, opaque ice formed by the instantaneous freezing of small supercooled water droplets.
*Clear ice: Glossy, clear, or translucent ice formed by the relatively slow freezing of large supercooled water droplets.
I never though airplanes would go through this much stress. Freezing cold to nice and hot to freezing cold several times a day, now i can
see why theres air crashes. The planes are built solid to withstand this 'freeze thraw' (Sp?)