This is not about frustration, but about trying to understanding how
FAA comes up with airmets. An airmet is supposed to be issued when
moderate icing is expected. If they are issuing an airmet every time
there are clouds and freezing temperatures (or even above freezing),
then what about light icing?
Unless your plane is certified for known icing then airmet or not any
icing potential means you can't legally fly. Arguing over moderate
versus light is academic since either is prohibitive..
The other crazy thing is people are arguing over 2 degrees F. I don't
care how accurate your thermometer is, but if you are that close
to potential icing, get out of there. +5 certainly gives you the
margin and sure the FAA will err on the larger side but still,
are you watching the OAT in your instrument scan....."one more
degree drop and I turn around....." Crazy.
Gerald
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