Proper Time to engage Engine & Wing Anti Ice

[Guest V4DIV-CVN-70]

When would be the proper time to engage these items? Is this only when its snowing or freezing at airports?

[tcas_climb 45]

well if its the MD11, as soon as the ICE DETECTED alert comes up:-)

[downscc 1,327]

Company policies vary. A common policy is to use deice whenever there is cloud and temp is between +5C to -10C. Always better to prevent ice than to try to get rid of ice, as the first step.

[onurksn 1]

Just to add, in harsh winter conditions it's best to keep them on up to 10000 feet or turn them on at 10000 feet if descending. This I believe is done (as said above) to prevent an unwanted situation.

[Guest V4DIV-CVN-70]

Thats the Answers I needed thanks Everyone!