Aerodynamics

2. The rearward acting force.
5. An airplane can be ____________ at any airspeed in any flight attitude.
6. Is the result of the interference of the ground (or water) surface with the airflow patterns about an airplane.
8. The downward acting force.
9. The wing chord line is an _______________ straight line from the leading edge to the trailing edge of the wing.
11. The angle of attack is the angle between the ____________ chord line and the direction of the relative wind.
12. The forward acting force.

1. Forms when the temperature of the collecting surface is at or below the dew point of the adjacent air and the dew point is below freezing.
3. "The increase pressure of a fluid (liquid or gas) decreases at points where the speed of the fluid increases"
4. The ___________ of the wingtip vortices alters the span wise lift distribution and reduces the induced angle of attack and induce drag.
7. The upward acting force.
10. Frost on wings disrupts the smooth ____________________ over the airfoil by causing early airflow separation for the wing.