CFII Written Knowledge Test (FII) question

[kevmor99]

Can someone please explain this question to me? I looked up the AC it referenced but it wasn't much help. I get how ground speed will change your required descent rate, but how does a tailwind/headwind affect your pitch?

While flying a 3° glide slope, a headwind shears to a tailwind. Which conditions should the pilot expect on the glide slope?
* Airspeed and pitch attitude decrease and there is a tendency to remain on the glide slope.
* Airspeed and pitch attitude increase and there is a tendency to go above glide slope.
* Airspeed and pitch attitude decrease and there is a tendency to go below glide slope.

 

[aviatorx43]

Your airspeed will decrease because there's not as many molecules going through the pitot tube because your headwind just disappeared.

Your pitch will also decrease because there is less air flowing over the horizontal stabilizer after the wind shear, creating less negative lift so the nose will drop slightly.

A decrease in both speed and pitch will cause you to go below the glideslope.