How Does the Angle of Incidence Affect Lift and Drag in Small Aircraft?

[WK95]

For a given airfoil, the amount of lift and drag and thus the L/D ratio vary depending on it's angle towards the airflow.

In general, for small aircraft with a straight wing shape (I say so because that seems to be the simplest case since the airfoil shape will be constant throughout the length of the wing), at what angle of attack is the wing attached to the rest of the plane or fuselage.

Forgive me if I misused any terms or lack certain details. I'm not an aerospace engineer (yet).

 

[FactChecker]

That angle is called the "angle of incidence", also called "mounting angle". See http://en.wikipedia.org/wiki/Angle_of_incidence#Angle_of_incidence_of_fixed-wing_aircraft
It varies for each airplane.