Lecture 10 Communication and Flight Information
PHILIP GREENSPUN: All right, folks, before Tina is going to talk, I'm going to share with you something that I've never said to anyone before in 55 years. I figured it out on my own by thinking. So when you put in the flaps, the airplane's nose has to go down. So you put in the flaps, nose goes down. Think about the tail plane. Remember, a tail plane is actually flying in the downward direction. So the angle of attack of the tail is negative. And if you put the airplane a little bit more nose down, that increases the angle of attack on the horizontal stabilizer. And it can become a stalling angle of attack if that horizontal stabilizer has been rendered inefficient by frost. Does that make sense? So remember, the angle of attack of the wing is positive between the relative wind and the wing. But the tail plane is flying down, generating lift in a downward direction. Wings pull up, tail pushes down in a conventional airplane. And when you go a little bit more n...