3
5. You must correctly install all R/C and other components
so that the model operates correctly on the ground and in
the air.
6. You must check the operation of the model before every
flight to insure that all equipment is operating and that the
model has remained structurally sound. Be sure to check
clevises or other connectors often and replace them if they
show any signs of wear or fatigue.
7. If you are not an experienced pilot or have not flown
this type of model before, we recommend that you get the
assistance of an experienced pilot in your R/C club for your
first flights. If you’re not a member of a club, your local
hobby shop has information about clubs in your area whose
membership includes experienced pilots.
8.
WARNING:
The cowl and wheel pants included in this kit
are made of fiberglass, the fibers of which may cause eye,
skin and respiratory tract irritation. Never blow into a part
(wheel pant, cowl) to remove fiberglass dust, as the dust
will blow back into your eyes. Always wear safety goggles, a
particle mask and rubber gloves when grinding, drilling and
sanding fiberglass parts. Vacuum the parts and the work
area thoroughly after working with fiberglass parts.
We, as the kit manufacturer, provide you with a top quality,
thoroughly tested kit and instructions, but ultimately the
quality and fl yability of your fi nished model depends
on how you build it; therefore, we cannot in any way
guarantee the performance of your completed model,
and no representations are expressed or implied as to the
performance or safety of your completed model.
Remember:
Take your time and follow the instructions to
end up with a well-built model that is straight and true.
DECISIONS YOU MUST MAKE
Radio Equipment
The Yak-55M EP requires a 4-channel radio system with four
micro servos such as the Futaba
®
S3115 Micro Precision
Servo. For optimum performance, we recommend the Futaba
S3150 Slim Digital Servos.
In addition, three 9" [229mm] servo extensions are required
for the aileron servos and the ESC. Two 16" [405mm] servo
extensions are required for the rudder and elevator servos.
If you are using a radio system that does not support mixing
functions, a Y-harness will also be required to connect the
aileron servos to the receiver.
❏
(4) Futaba S3115 Micro Precision Servos [FUTM0415]
[38.9 oz-in (2.8 kg-cm) of torque]
OR
❏
(4) Futaba S3150 Slim Digital Servos [FUTM0303]
[51.4 oz-in (3.7 kg-cm) of torque]
PLUS
❏
(1) "Y" harness [FUTM4130]
❏
(2) 16" extensions [FUTM3955]
❏
(3) 9" extensions [FUTM3910]
Motor/ESC Recommendations
The recommended motor and speed control for the Yak-55M
EP is a RimFire
™
.32 (42-50-800) brushless outrunner motor
and the SS-45A Brushless ESC.
❏
Great Planes RimFire .32 Brushless Outrunner Motor
[GPMG4700]
❏
Great Planes Silver Series SS-45A Brushless ESC
[GPMM1840]
]
Propeller
If using the recommended RimFire .32 Outrunner Motor, we
suggest an APC 12x6E electric propeller [APCQ4130].
Recommended Batteries
If using the suggested motor and prop combination, a
2200mAh 14.8V LiPo battery pack is recommended.
❏
Great Planes ElectriFly LiPo 14.8V 2200mAh 25C
(GPMP0521)
OR
❏
FlightPower
®
LiPo EOUX30 14.8V 2200mAh 30C
(FPWP6199)
Recommended Charger
A LiPo compatible charger is required to charge LiPo
batteries. The Great Planes ElectriFly PolyCharge4™ is
designed for LiPo packs only; however, it is able to charge
four LiPo packs simultaneously. The ElectriFly Triton2
™
and
AC/DC Triton2 EQ chargers will only charge one pack at a
time, but are capable of charging NiCd, NiMH, Pb acid and
LiPo batteries.
❏
Great Planes PolyCharge4 DC-Only 4 Output LiPo
Charger (GPMM3015)
OR
❏
Great Planes ElectriFly Triton2 DC Computer Peak
Charger (GPMM3153)
OR
❏
Great Planes AC/DC Triton2 EQ Charger/Balancer
(GPMM3156)
Throughout the life of a LiPo battery, the individual cells
located inside the battery may become unbalanced. These
unbalanced cells can shorten the life of the battery or cause
it to malfunction. For this reason, it is always recommended
that a cell balancer be used when charging LiPo batteries.
The ElectriFly Equinox™ is a cell balancer that may be used
with any LiPo charger and is capable of maintaining the cell
balance of the battery. Note: The AC/DC Triton2 EQ does not
require a cell balancer.
❏
Great Planes ElectriFly Equinox LiPo Cell Balancer
[GPMM3160]
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