Dynaflite PT-19 - Manual (Page 32)

NiCd -Nickel Cadmium battery. Rechargeable
batteries which are typically used as power for radio
transmitters and receivers.
Nitro -Nitromethane, a fuel additive which increases
a model engine's ability to idle low and improves
high speed performance. Ideal nitro content varies
from engine to engine. Refer to the engine
manufacturer's instructions for best results. Nitro
content in fuel is indicated by the percent of the fuel.
Ni-starter -A self-contained battery and glow plug
clip, used when starting the engine.
See "glow plug clip."
Power panel -12-volt distribution panel that provides
correct voltage for accessories like glow-plug clips,
fuel pumps and electric starters. Usually mounted on a
field box and connected to a 12-volt battery.
Prop pitch -Props are designated by two numbers,
for instance 10 - 6. The first number is the prop's
length, 10". The second number is the pitch or angle
of the blades. The 6 represents the distance the
propeller will move forward in one revolution, in this
case 6".
Receiver (Rx) -The radio unit in the airplane which
receives the transmitter signal and relays the control
to the servos. This is somewhat similar to the radio
you may have in your family automobile, except the
radio in the airplane perceives commands from the
transmitter, while the radio in your car perceives
music from the radio station.
Rudder -Hinged control surface located at the
trailing edge of the vertical stabilizer, which provides
control of the airplane about the Yaw axis and
causes the airplane to Yaw left or right. Left rudder
movement causes the airplane to Yaw left, and right
rudder movement causes it to Yaw right.
Servo -The electro-mechanical device which moves the
control surfaces or throttle of the airplane according to
commands from the receiver. The radio device which
does the physical work inside the airplane.
Slop -Unwanted, excessive free movement in a
control system. Often caused by a hole in a servo
arm or control horn that is too big for the pushrod
wire or clevis pin. This condition allows the control
surface to move without transmitter stick movement.
A/so, see "flutter."
Solo -Your first totally unassisted flight that results in
a controlled land ing.
Spinner -The nose cone which covers the hub or
the propeller.
Sport Airplane -A model which possesses some
attributes of many of the specialty airplanes and are
best for general flying as they are the most versatile
and durable.
Stall -What happens when the angle of attack is too
great to generate lift regardless of airspeed. (Every
airfoil has an angle of attack at which it generates
maximum lift — the airfoil will stall beyond this angle).
Trainer Airplane -A model designed to be inherently
stable and fly at low speeds, to give first-time
modelers time to think and react as they learn to fly.
Trailing Edge (TE) -The rearmost edge of the wing
or stabilizer.
Transmitter fTx) -The hand-held radio controller. This
is the unit that sends out the commands that you input.
Vertical Fin -The non-moving surface that is
perpendicular to the horizontal stabilizer and
provides yaw stability. This is the surface to which
the rudder attaches.
Wheel Collar -A small, round retaining device used
to keep a wheel from sliding off an axle.
Z-Bend -A simple Z-shaped bend in the wire end of
a pushrod, which is used to attach the pushrod to a
servo output arm.