This is one of the first things that we do. It seems rather simple but turns out to be a bit more complicated than initially thought. To successfully do this you must maintain a flight configuration you neither turn, nor climb, nor descend.
There
are three (3) cues that we can use to determine whether or not we have this
condition. They are:
1. |
The
appearance of the horizon. |
2. |
The
distance between the wing tips and the horizon. |
3. |
The
angle the wing tips make with the horizon. |
Think
of the Earth as being a big gyroscope.
The horizon should appear level.
If it is at all tilted – you are turning.
A
good way to maintain straight flight is to pick a distant point on the horizon
or other feature and fly toward it. If
this object’s orientation to you does not change, you are maintaining a
straight course over the surface of the Earth.
The
horizon should appear slightly above the cowl.
How much above this depends on how your seat is set and how tall you
are. You need to learn how the horizon
looks when you are in level flight. If
you see less than that – you are climbing; if more appears – you are
descending.
Look
at the distance between the left wing tip and the horizon. Then do the same for the right wing
tip. If the distances are not equal - you
are turning. In a high wing aircraft
such as a Cessna 172, you are turning away from the side higher above the horizon.
Once
that you have ascertained that you are not turning, look at the angle the cords
of the wing tips makes with the horizon.
If these angles are 0o – you are in level flight. If they are not parallel, you are either
climbing or descending. If the cords
are angled upward you are climbing; if they point downward you are descending.
As
a student pilot you want to develop the skill to pilot the aircraft by visual
reference solely. If you start to fly
by the instruments, it will become an impediment to your learning of this
skill. However, if you set the aircraft
in an attitude that you consider straight & level then take a quick peek at
your Directional Gyro and Altimeter, you can quickly see if you were correct or
not.
I
have little rubber covers for the instruments.
I will know that you can fly straight and level because at the end of
this phase, I will cover up all of your altitude instruments and see how you
do.