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SECTION 16: FLYING THE TUBBY CUBBY EP
The Tubby Cubby EP can take off from the ground or be hand-launched. We recommend ground take-offs only from hard
smooth surfaces or very short grass.
Taking Off from the Ground
With the airplane pointing into the wind, apply full power and feed in right rudder to keep the airplane tracking straight as
it rolls down the runway. Once sufficient airspeed has been reached, which will happen pretty quickly, gently apply up
elevator to lift the airplane off the ground. Climb out straight ahead in a shallow climb to build up speed. Do not make
any steep turns right after take-off or you may stall the airplane.
Hand Launching
Hand Launching should always be done into the wind.
To hand-launch the airplane, gently grasp the fuselage between your thumb and forefingers at the C.G. location. Hold
the airplane above shoulder level and turn on the motor to full power. With the motor running at full power, gently toss
the airplane straight ahead and level. Do not throw it up at an angle or throw it hard. Let the airplane fly straight and
level to pick up airspeed, then climb to your desired altitude. Be careful not to climb too steeply after hand-launching
or you could stall the airplane.
In the Air
In the air the Tubby Cubby EP is smooth and predictable. With full power, climb-out is crisp and fast. When at full
power you will probably notice that the airplane is more sensitive to elevator control than some airplanes you might be
familiar with. This is because of the short distance between the horizontal stabilizer and the wing. At lower power
settings the airplane cruises gracefully with little stick input required. We suggest flying only in low to non-existent winds
until you become familiar with the airplane. Once you are familiar with the flying characteristics, you will realize that the
airplane will handle light winds and will do basic aerobatics with ease.
Landing
Landings should always be done into the wind. Prepare for landing by reducing power and allowing the airplane to slow
down and descend. Just before touch-down, turn the motor off and let the airplane settle near the ground. Flair just before
touch-down and you will be rewarded with a slow 3-point landing. As always, when landing, be careful not to over-
control. Over-controlling leads to excessive oscillations which don't make for good landings.
SECTION 17: GLOSSARY OF TERMS
Center of Gravity:
Most commonly referred to as the C.G. or balance point, it is the point at which the airplane is in
complete balance in all three axes.
Clevis:
Part of the control system, either made out of nylon or metal. It connects the pushrod wire to the control horn
mounted on the control surface.
Control Horn:
Part of the control system, the control horn is mounted to the control surface. It allows the pushrod to be
connected to the control surface.
Cycling:
The act of fully charging and discharging the flight battery. Cycling the battery increases performance and
duration.