E-flite ElectraJet EP w/ESC & Delta Mix - Manual (Page 15)

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Activating (Arming) Switch: An external switch that prevents
the electric motor from accidentally turning on.
Axis: A line passing through a body about which the body revolves.
Battery cycling: The repeated charge and discharge of a
battery to erase battery memory.
Battery Memory: Term used to explain why a battery is unable
to take on a full charge because of insufficient discharging
before recharging.
Capacity: The amount of charge or electricity a battery can hold.
Center of Gravity (CG): Balancing point of an aircraft.
Center Line: An imaginary line drawn through the center of the
aircraft from the nose through the tail.
Control Horn: The arm on the control surface that connects
with the pushrod.
Control Surface: The moveable parts on the wing and tail
that cause the aircraft to roll (ailerons), pitch (elevator),
or yaw (rudder).
Dihedral: The degree of angle (V-shaped bend) at which the
wing intersects the airplane is called dihedral. More dihedral
gives an airplane more aerodynamic stability. Some small
R/C airplanes and trainers with large dihedral dispense with
ailerons and use only the rudder to control roll and yaw.
Electrolyte: A caustic material found in batteries.
Elevator: The hinged control surfaces connected to the horizontal
stabilizer. The elevator controls the pitch of the airplane. On
a Mode II transmitter, pulling the right control stick back
makes the elevator move up and the airplane will nose up
and try to climb. Pushing the right control stick forward
moves the elevator down and causes the nose of the aircraft
to go down and the airplane to descend.
Fuselage: The main body of the airplane.
Harness: A device consisting of wires, switches, and a fuse that
connects the motor to the battery.
Horizontal Stabilizer: The horizontal surface of the tail that
provides stability in flight. The elevator is connected to the
horizontal stabilizer.
Leading Edge: The front edge of a flying surface (wing,
horizontal stabilizer, and vertical stabilizer).
Landing Gear: The wheel and gear assembly the airplane uses
to land. It is attached to the bottom of the fuselage or wings.
Nicad (Nickel Cadmium) battery: A rechargeable battery
used for radio control airplanes.
Pitch Axis: Degree of nose up or nose down from level to
the horizon.
Pushrod: The rigid wire that transfers movement from the
servo to the control surface
Receiver: The receiver unit in the airplane receives your
signals from the ground transmitter and passes the
instructions to the servos in the airplane.
Roll Axis: The horizontal plane on which the airplanes wingtips
are raised or lowered. The airplanes ailerons cause the air-
plane to roll left or right. On some smaller airplanes that do
not have ailerons, application of the rudder control, com-
bined with the wing dihedral, will cause the airplane to roll.
Rudder: The control surface attached to the vertical stabilizer.
The rudder controls the yaw of the airplane (movement of
the nose of the aircraft left or right). Moving the left control
stick of the transmitter left or right causes the rudder to
move left or right.
Servo: The servo transforms your ground commands into
physical adjustments of a control surface while the airplane
is in flight.
Servo Arm: The moveable arm or wheel that connects the servo
to the pushrod (also called a servo horn).
Span: The maximum distance from wingtip to wingtip.
Speed Controller: An electronic device that functions as a
throttle for an electric motor. A speed controller controls
the speed or rpm of an electric motor.
Stall: Loss of lift resulting from exceeding the critical angle of
attack of the wing.
Transmitter: The device used on the ground to transmit
instructions to the airplane. Three transmitter modes are
used in model airplanes. The most common is Mode II
where the left stick controls the throttle and rudder and the
right stick controls the elevator and ailerons.
Vertical Stabilizer: One of the tail surfaces that provides
stability in flight. The rudder is connected to the vertical
stabilizer.
V-Tail: Combines the function of the elevator and ailerons into
one function, usually through an electronic mixer or through
a preset mix in the transmitter.
Wing: The wing provides the primary lifting force on an airplane.
Yaw Axis: The vertical plane through which the airplanes nose
passes as it yaws to the left or right. The rudder controls
movement around the yaw axis.
Z-Bend: The end of a pushrod wire with a “Z” shaped bend that
connects to the servo.
• Wing Replacement (EFL1001)
• Fuselage Replacement (EFL1002)
• Tail Replacement (EFL1003)
• Hardware Kit (EFL1004) • Speed Controller (EFLA100)
• Delta Mixer (EFLA101)
• Propeller (EFLA300)
• Power Unit (EFLA400)
ElectraJet ™ Spare Parts List
Glossary of Terms