Ailerons
– Hinged control surfaces
located on the trailing edge of the
wing,
one on each side, which
provide control of the airplane
about the
roll axis.
The control
direction is often confusing to first
time modelers. For a right roll or
turn, the right hand aileron is
moved upward and the left hand
aileron downward, and vice versa
for a left roll or turn.
Canard –
A unique type of airplane,
in which the
wing
is located near
the back of the
fuselage
and the
horizontal stabilizer
is located at
the nose of the fuselage.
Carburetor
– The part of the
engine
which controls the speed
or throttle setting and lean/rich
mixture via setting of the needle
valve.
CG (Center of Gravity)
– For
modeling purposes, this is usually
considered the point at which the
airplane balances fore to aft. This
point is critical in regards to how
the airplane reacts in the air. A
tail-heavy plane will be very
snappy but generally very
unstable and susceptible to more
frequent stalls. If the airplane is
nose heavy, it will tend to track
better and be less sensitive to
control inputs, but will generally
drop its nose when the throttle is
reduced to idle. This makes the
plane more difficult to land since
it takes more effort to hold the
nose up. A nose heavy airplane
will have to come in faster to land
safely.
Chamfer
– To slightly round-off or
bevel a corner.
Charge Jack
– The plug receptacle
of the
switch harness
into which
the charger is plugged to charge
the airborne battery. An
expanded
scale voltmeter (ESV)
can also be
plugged into it to check battery
voltage between flights. It is
advisable to mount the charge
jack in an accessible area of the
fuselage
so an ESV can be used
without removing the
wing.
Charger
– Device used to recharge
batteries and usually supplied
with the radio if
NiCd
batteries are
included.
Chicken Stick
– A hand-held stick
used to flip start a model airplane
engine.
Clevis
– A small clip which is
threaded or soldered onto the wire
end of a
pushrod
and connects the
pushrod to the
control horn
of a
control surface. The threads allow
fine adjustment of length of the
pushrod.
Clunk
– A weighted fuel pick-up
used in a fuel tank to assure the
intake line is always in fuel.
35
Glossary of Terms
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