We instructors notice the nose goes the wrong way when our students start a turn. Yes, it is because the down aileron causes adverse yaw. All instructors teach about adverse yaw, but my question to you is, "did your instructor teach you to prevent it or to use rudder to come back into coordination? When teaching Ag I noticed that most commercial pilots yaw slightly opposite the desired direction of turn and then adjust with rudder to become coordinated. Actually, in steep turns, almost coordinated in a slight slip.

Hopefully we don't have to deal with too many startles. In Ag the need to get the nose around and onto the next swath run solves the lack of lead rudder problem and the tendency to slip. Teaching Dutch Rolls to 45 degree banks, we indoctrinate lead rudder or rudder pulls aileron and not aileron leads rudder. No lead rudder, absolutely no holding the target. No lead rudder, the nose slings the wrong way. No lead rudder, absolutely no coordination. But what about startle turns? Which way is the nose going to sling when we find ourselves needing to move aileron and rudder (better rudder and aileron) to the stop to miss something? Could the way the nose goes initially be the difference between a near miss and a mid-air?

The down aileron drags that wing back causing adverse yaw. It cannot do otherwise. We can either lead rudder, prevent adverse yaw, and make the nose turn properly or we can react to this adverse yaw with rudder to come back into coordination. If we move the stick first and coordinate with rudder we will never be able to spray crops. Yes, around the airport we can call this reaction coordination. It is not. Leading rudder is the only hope of coordination. Try steep Dutch Rolls with coordination of aileron and rudder, sort yourself back out and regain the target, and now try leading rudder, lots of rudder. You will be amazed.

Now you and your student are ready for the startle turn that shouldn't happen but does. By indoctrinating your student in lead rudder or what Butch Washtock calls, "rudder pulls aileron," you have best prepared your student with the muscle memory to make the nose go as wished in any startle turn...in all turns.