Quote:
|
Originally Posted by B767Driver This is exactly what I've been trying to validate. Most texts will not delve into this.
Good job. |
I kinda see it a different way. Thrust required increases as altitude increases because of an INCREASE in induced drag. The coefficient of lift must be increased to compensate for the decrease in air density. So, in order to get to the minimum drag point again we must increase airspeed (and reduce AOA) to reduce induced drag. It is a balancing act between induced and parasite drag. An explanation of Vx using only one type of drag is incomplete. If you can understand why the graphs move the way they do then you are 99% of the way there.
Once you have that straight in your head, start working on what Vx and Vy do in terms of True airspeed.
