"Cecil Chapman" wrote in message
. com...
[...] BUT,,, IF I have the carb heat on full and I still
manage to ice-up, now I am in a condition that allow me few options to
address - there is no other fall back at that point.

If you are in conditions conducive to carb ice without carb heat, then
there's no way for full carb heat to produce a conditon that is still
conducive to carb ice. Conversely, if you get carb ice with the carb heat
full on, you are flying in some pretty cold temperatures and there was no
need for carb heat in the first place.

In any case, the problem with partial carb heat is that, without a carb temp
gauge, you have no way of knowing that you haven't created conditions
conducive to carb ice when none existed previously, or that you haven't
turned conditions only a little conducive to carb ice into conditions that
are very conducive to carb ice.

Pete