22
B.E.C.: An acronym for Battery Eliminator Circuitry, BEC
allows you to remove the standard receiver battery and use
the flight battery to operate the receiver and servos.
C/A Glue: An acronym for Cyanoacrylate. It dries very
fast like "Super Glue." It comes in many different formu-
las for different uses.
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.
Cycling: The act of fully charging and discharging the
flight battery. Cycling the battery increases performance
and duration.
EPA: An acronym for End Point Adjustments. This is a
feature found on newer radio systems that allows you to
electronically adjust the end-travel in servos.
Epoxy: A two-part glue containing a resin and a hard-
ener. Epoxy is available in several drying times and is
stronger than C/A glue. Epoxy is used in high stress ar-
eas such as where wing halves are joined.
ESC: An acronym for Electronic Speed Control. See
Motor Controller below.
Exponential: Expo, as it's more commonly referred to,
softens the control feel around neutral. This is especially
helpful when flying an airplane that uses a lot of control
throw. Softening the neutral point makes the airplane fly
smoother and makes it more likely that you won't over-
control.
Motor Controller: Usually called an electronic speed
control (ESC), the motor controller controls the speed of
the motor. Motor controllers can also be simple on and
off switches.
GLOSSARY OF TERMS
FLYING THE F-22 RAPTOR EP
The F-22 Raptor EP is designed for those pilots who
are experienced in flying sport models. It is not a trainer.
If you do not feel comfortable that you are able to test fly
the airplane, don't hesitate to ask someone for some help
test flying and trimming it.
Flying the F-22 Raptor EP is much like flying any
other sport airplane. The airplane can either be taken off
from the ground (ROG) or hand-launched.
ROG Technique (with optional landing gear)
To ROG you should be using a hard runway or firm
dirt strip. The airplane will not ROG from grass. Since
the airplane does not have a steerable nose gear, it is im-
portant that you double check that the airplane is tracking
straight down the runway. Take-offs should also be done
into the wind to prevent the airplane from veering right or
left. It is important to let the airplane get up to flying
speed before lifting off the ground. Lifting the airplane
off the ground too fast will cause the airplane to stall and
crash. When the airplane is up to flying speed apply a
small amount of up elevator to gently pull the airplane off
the ground and into a shallow climb.
Hand-Launch Technique
To hand-launch the F-22 Raptor EP, gently grasp the
fuselage between your thumb and forefingers using the
molded cavities as a hand hold. Hold the airplane above
shoulder level and turn on the motor to full power. With
the motor running at full power, firmly toss the airplane
straight ahead and level. Do not throw it up at a steep
angle. Let the airplane fly straight and level to pick up
airspeed, then climb up to your desired altitude. Be care-
ful not to climb too steeply after hand-launching or the
airplane could stall.
❑
5)
Don't drink and fly. Consuming alcoholic bev-
erages prior to flying, or while you are flying, is a big
no-no.
❑
6)
You should complete a successful range check
of your radio equipment prior to each new day of flying,
or prior to the first flight of a new or repaired model.
❑
7)
You should perform your initial turn after take-
off away from the flightline and/or spectator area.
❑
8)
You should not knowingly operate your R/C ra-
dio system within 3 miles of a preexisting model club
flying field without a frequency sharing agreement with
that club.
Flying
In the air the F-22 Raptor EP is a very smooth flyer.
Set up with low rate settings, the airplane behaves very
gently. It will fly very smooth and stable throughout the
entire flight envelope. With high rate control settings,
aerobatics are possible. Loops, rolls, immelmann turns,
cuban-eights and more can be done with ease.
When it is time to land, gradually reduce altitude and
power. It is not a good habit to chop the throttle and dive
the airplane to the runway. When you are a few feet above
the landing surface, turn the motor off and allow the air-
plane to settle onto the runway. You will find that the
airplane will land very slowly at a nose high attitude.
Содержание F-22 Raptor EP
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