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BeCOMING FAMILIAR WITH YOuR J-3 CuB 370 RTF, CONTINueD....
Arming Switch:
This is a safety device. When the flight battery is plugged in, the motor can be turned on only after pressing this
switch once.
Control Horn:
A plastic piece that is secured to the control surfaces. The pushrod wire from the servo inside the airplane attaches
to the control horn, so the control surface can be moved.
Fuselage:
The main body of the airplane. All of the main airplane assemblies are attached to the fuselage.
Horizontal Tail:
Provides stability for the airplane during level flight.
Landing Gear:
Comprised of a length of wire, two wheels and two strut covers, the landing gear supports the airplane while on
the ground. The landing gear allows you to take off and land from hard surfaces.
Propeller:
The propeller is attached to the front of the motor. When spinning, the propeller creates forward thrust which pulls the
airplane forward.
Vertical Tail:
Provides stability for the airplane during turns.
Wing:
The wing has a special airfoil shape and provides the main source of lift for the airplane.
The flight battery included with your airplane comes from the factory partially charged.
DO NOT charge the
flight battery until after testing the motor.
This will ensure that the flight battery is run down completely before recharging it.
This is important to ensure that the flight battery receives a full charge and is cycled before your first flight.
WARNING
Photo May Differ From
Production Model
The J-3 Cub 370 RTF's Center of Gravity (Balance Point) is located 1-3/8" (35mm) behind the
leading edge of the wing, measured at the fuselage sides. The airplane should be balanced right side up
with the flight battery and the wing struts installed.
LOCATING THe CeNTeR OF GRAVITY
The airplane is designed to balance properly directly out of the box when using the included flight battery. You may wish to double-
check the balance of the airplane, though, before flying it for the first time or after any repairs are made.
