It is necessary to learn some of the basic parts of the
airplane in order to be able to correctly and successfully fly
airplanes.The Fuselage,the wings and the tail are the main sections of the airplane.And
Fuselage Section is the main structure of the aircraft to everything else is attached.
The Wings provide most of the lift needed to fly the airplane.When the wings move
through the air,the shape of the wing causes the air that flows over the top of the wing
to move a lot more faster than the air flowing below it.As a result,less pressure is
created on top of the wing and more pressure is created below the wing.A higher
pressure underneath the wing pushes the wing upward creating lift.
Flight Control Surfaces
Models and real airplanes are both depend on control surfaces to maneuver and fly,
the basics being the elevators,ailerons and rudder.Some of the more sophisticated ones
might have spoilers and flaps and leading edge wing flaps.
Elevators---control nose up or down attitude(pitch axis) of the airplane.This is how it
works in a nutshell.When the pilot pitches the nose up,the wing angle is changed as
related to the airplanes forward movement.As the angle of the wing(know as angle of
attack---AOA) is increased,more of the lower wing surface is revealed to the oncoming
air and an increase in engine power will cause the airplane to climb.It will result in a stall
situation by increasing AOA too much without a corresponding power increase.
Ailerons---Ailerons are located on the trailing edge of the wings near the wingtips.These
surfaces will roll the model to the left or right.If the aileron stick is moved to the left,the
model will roll to the left becauseless lift is produced on the left wing.This can be
explained as follows.When a left roll input is introduced,the left aileron will move up
into the airstream,and the right aileron will move down.So,the airflow rushing over the
left wing no longer flows smoothly,creating less lift on that wing causing the model to
roll to the left.It works the same way for the right wing.
Rudder---Rudder inputs will control nose right or left attitude of the model airplane.If
left or right rudder inputs are introduced,the nose of the plane will move to the left or
the right.Rudder inputs are used to counter the effect known as ad verse yaw when
turning the model.This is the tendency of the right extended aileron to produce drag on
a right turn causing the model to want to turn to the left.
Aerodynamics---The four aerodynamic forces at play on a model are lift,gravity,thrust
and drag.
Lift---The result of airflow over the curved upper and lower wing surfaces.It's the force
that keeps the model plane in the air.
Thrust---Thrust pushes or pulls the model plane forward.
Drag---The opposite of thrust.Drag is created by the friction of model against air when
it moves forward.
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