ORIGINAL: redcommander
Dick, I'm having trouble following you. The airplane can be blown sideways. It just takes wind.....
I'm surprised that no one jumped on you for this already.
The plane is NOT blown sideways since it's already drifting with the wind such that it only sees a direct on headwind at all times. The only times it'll see any side force is when the rudder is moved or for a moment when it moves into a volume of air where the velocity or direction or both is dffernet from the last volume (turbulence don'cha know). At that point it'll see a small side wind until the model is once again in direct headwind equilibrium.
IE: a dandelion seed drifing with the wind sees NO apparent wind force other than from below since it is always falling even if it IS a very slow fall.