You're right jlkonn, for a STEADY STATE the model sees only a head on wind and it's only the visual effect of an observer on the ground that sees it drifing.

But if it's flying in turbulent conditions then the side area will come into play for the duration of any side angular wind effects until the model is once again flying head on into the air. But that is a very transient effect and if the air is enough of a washing machine that it's a significant time % then the pilot will be far more likely to be at home typing on the internet....