Elevator-Downward or upward force?
Suppose we have an elevator.Lets say of a C172.In the manual I read that there is a negative angle of incidence for the horizontal stabilizer.Probably in order to have a downward force to counteract the upward moment of lift.
I tried to take a close look at the elevator of the cessna that I fly,and noticed that it is a symmetrical wing.Or it looks like.
In the theory,I read that with the downward deflection of the elevator,the downward force will be reduced,and we may have an upward force.
My question:is it possible the downward force exerted by the elevator to be inverted and become an upward force?Even though the deflection is big enough.
Consider an horizontal stabilizer.