Originally Posted by Cows getting bigger
What about the go around at 301ft? Will the inexperienced pilot put carb heat to cold or will he forget because he hasn't got to his 300ft check point?
At most airfields you are above the obstacles at 300' AGL, so the reduced performance doesn't affect you as much.
Heading 125: Normal descents should keep the engine RPM in the green or approximately above 2000 rpm, so the probability of carb icing is lowered significantly. You also have to take the enrichment of air-fuel mixture into effect, which would only additionally cool the engine in descent - so descending from let's say 6000 ft with carb heat set to hot and mixture rich (since most people do full rich except on cruise - or sadly, even there because of "the evil red knob") wouldn't do any good for the engine. Besides, if you use normal rates of descent for non-pressurized aircraft, you shouldn't even need to reduce the power below normal range while keeping airspeed in the green arc.