Friday, December 21, 2012

What Notion is about as Healthy as that a Rattlesnake makes a Pleasant Pet?

How about the idea that the purpose of the rudder is to steer the airplane around the corner? No way.

The rudder gives the pilot the means to combat the adverse yaw effect of the ailerons. This is what a coordinated turn is all about. That is why we use rudder on going into a turn and why we use rudder when coming out of a turn. If the ailerons had no adverse yaw a plane wouldn't need a rudder.

It would be great if a student pilot had a early and clear concept of what an airplane had a rudder for. Think of all the skidding and slipping it would eliminate. Think of the fatalities it would save.

Remember your steep turn training. It was easy to enter with slight rudder involvement. Recovering was another thing. 

Banking out of fast, low angle of attack flight into a steep turn there is not much adverse aileron yaw and the need for rudder is less. Unbanking out of slow, high angle of attack flight, there is much adverse aileron yaw and much need for rudder. Your correct response will prevent a "broken neck" so to speak.

There is only one way to get out of a steep turn quickly and safely. This is especially important if the recovery from the steep turn has begun to sour.

First, to reduce the angle of attack, let the stick or wheel come forward to unstall the wings and giving the ailerons less adverse yaw. This enables the wing to lift itself.

Second, now apply a lot of top rudder (left rudder in a right turn and vice-versa).

Third, begin to apply high aileron to roll the airplane out of the steep bank.

Lesson today, "Stick Forward" to reduce angle of attack.

Here's to flying safely!