Quote:
Originally Posted by USMCmech  However I have heard some people go as far as saying IMC below 32 is known ice.
This is clearly not a subject that we can make a simple blanket statement. |
This is why the blanket statement is needed. Ice
can form below 10C and visible moisture. VM loosely defined as IMC. Most aircraft "certified" for flight in icing conditions use this definition to direct the use of that equipment. It doesn't mean that you
will get ice every time and you never know beforehand that you
won't. By using the broadest definition you are adhering to the most safe and legal interpretation.
If you know that ice is probable, then you know you are flying into icing conditions. Forecast or not........91.13