35
NEVER
disassemble or modify the pack wiring in any
way or puncture the cells.
NEVER
discharge LiPo batteries below 2.7V per cell.
NEVER
place the battery or charger on combustible
materials or leave it unattended during charge or
discharge.
ALWAYS
KEEP OUT OF THE REACH OF CHILDREN.
NEVER
charge the battery in the plane.
ALWAYS
remove the battery from the plane after a
crash. Set it aside in a safe location for at least 20
minutes. If the battery is damaged in the crash it could
catch fi re.
If the battery starts to swell, quickly move the battery to
a safe location, preferably outside. Place it in a bucket,
covering the battery with sand. Never use water to try
and put out a LiPo fi re.
AMA SAFETY CODE (excerpts)
Read and abide by the following excerpts from the
Academy of Model Aeronautics Safety Code. For the
complete Safety Code refer to
Model Aviation
magazine,
the AMA web site or the Code that came with your AMA
license.
GENERAL
1) I will not fl y my model aircraft in sanctioned events,
air shows, or model fl ying demonstrations until it has
been proven to be airworthy by having been previously,
successfully fl ight tested.
2) I will not fl y my model aircraft higher than approximately
400 feet within 3 miles of an airport without notifying the
airport operator. I will give right-of-way and avoid fl ying
in the proximity of full-scale aircraft. Where necessary,
an observer shall be utilized to supervise fl ying to avoid
having models fl y in the proximity of full-scale aircraft.
3) Where established, I will abide by the safety rules
for the fl ying site I use, and I will not willfully and
deliberately fl y my models in a careless, reckless and/
or dangerous manner.
5) I will not fl y my model unless it is identifi ed with my
name and address or AMA number, on or in the model.
Note: This does not apply to models while being fl own
indoors.
7) I will not operate models with pyrotechnics (any device
that explodes, burns, or propels a projectile of any kind).
RADIO CONTROL
1) I will have completed a successful radio equipment
ground check before the first flight of a new or
repaired model.
2) I will not fl y my model aircraft in the presence of
spectators until I become a qualifi ed fl ier, unless assisted
by an experienced helper.
3) At all fl ying sites a straight or curved line(s) must be
established in front of which all fl ying takes place with the
other side for spectators. Only personnel involved with
fl ying the aircraft are allowed at or in the front of the fl ight
line. Intentional fl ying behind the fl ight line is prohibited.
4) I will operate my model using only radio control
frequencies currently allowed by the Federal
Communications Commission.
5)
I will not knowingly operate my model within
three miles of any pre-existing fl ying site except in
accordance with the frequency sharing agreement
listed
[in the complete AMA Safety Code].
9) Under no circumstances may a pilot or other person
touch a powered model in fl ight;
nor should any part of
the model other than the landing gear, intentionally
touch the ground, except while landing.
Since the Giant P-47 Razorback ARF qualifi es as a
“giant scale’ model and is therefore eligible to fl y in IMAA
events, we’ve printed excerpts from the IMAA Safety
Code which follows.
FLYING
The Giant P-47 Razorback ARF is a great-fl ying model
that fl ies smoothly and predictably. The Giant P-47
Razorback ARF does not, however, possess the self-
recovery characteristics of a primary R/C trainer and
should be fl own only by experienced R/C pilots.
FUEL MIXTURE ADJUSTMENTS
A fully cowled engine may run at a higher temperature
than an un-cowled engine. For this reason, the fuel
mixture should be richened so the engine runs at about
200 rpm below peak speed. By running the engine slightly
rich, you will help prevent dead-stick landings caused
by overheating.
CAUTION
(THIS APPLIES TO ALL R/C AIRPLANES):
If, while fl ying, you notice an alarming or unusual
sound such as a low-pitched “buzz,” this may indicate
control surface
fl utter.
Flutter occurs when a control
surface (such as an aileron or elevator) or a fl ying
surface (such as a wing or stab) rapidly vibrates up
and down (thus causing the noise). In extreme cases,
if not detected immediately, fl utter can actually cause
the control surface to detach or the fl ying surface to fail,
thus causing loss of control followed by an impending
crash. The best thing to do when fl utter is detected is to
slow the model
immediately
by reducing power, then
land as soon as safely possible. Identify which surface
fl uttered (so the problem may be resolved) by checking
all the servo grommets for deterioration or signs of
vibration. Make certain all pushrod linkages are secure
and free of play. If it fl uttered once, under similar
circumstances it will probably fl utter again unless the
problem is fi xed. Some things which can cause fl utter
are; Excessive hinge gap; Not mounting control horns
solidly; Poor fi t of clevis pin in horn; Side-play of wire
pushrods caused by large bends; Excessive free play
in servo gears; Insecure servo mounting; and one of
the most prevalent causes of fl utter; Flying an over-
powered model at excessive speeds.
TAKEOFF
If you are using the optional air retracts, remember to
pump them up before each fl ight. Before you get ready
to takeoff, see how the model handles on the ground by
doing a few practice runs at
low speeds
on the runway.
Hold “up” elevator to keep the tail wheel on the ground.
If necessary, adjust the tail wheel so the model will roll
straight down the runway. If you need to calm your nerves
before the maiden fl ight, shut the engine down and bring
the model back into the pits. Top off the fuel, then check
all fasteners and control linkages for peace of mind.
