3
2. You must assemble the model
according to the instructions
.
Do not alter or modify the model, as doing so may result in an
unsafe or unfl yable model. In a few cases the instructions may
differ slightly from the photos. In those instances the written
instructions should be considered as correct.
3. You must take time to
build straight, true
and
strong
.
4. You must use an R/C radio system that is in fi rst-class
condition, and a correctly sized motor and components (fuel
tank, wheels, etc.) throughout the building process.
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
fl ight 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 fl own this type
of model before, we recommend that you get the assistance
of an experienced pilot in your R/C club for your fi rst fl ights.
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 fi berglass, the fi bers of which may cause eye,
skin and respiratory tract irritation. Never blow into a part
(wheel pant, cowl) to remove fi berglass 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 fi berglass parts. Vacuum the parts and the work area
thoroughly after working with fi berglass 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 representa-
tions are expressed or implied as to the performance or
safety of your completed model.
9. Never charge LiPo batteries unattended.
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
This is a partial list of items required to fi nish the “Extra 300SP
EP” that may require planning or decision making before
starting to build.
Radio Equipment
A 4-channel radio system with four micro servos and micro
receiver are required for this plane. The servos and receiver
shown in the manual are Futaba
®
S3150 Slim Digital Servos
and the Futaba 617FS FASST 2.4 GHz receiver. A lower priced
alternative would be the Futaba 3115 Micro Precision Servo.
Transmitter
❍
4-channel radio (minimum)
OR
❍
5-channel computer radio with mixing capabilities
Receiver
❍
Futaba 617FS FASST 2.4 GHz receiver [FUTL7637]
Servos
❍
(4) Futaba S3150 Slim Digital Servos [FUTM0303]
[51.4 oz-in (3.7 kg-cm) of torque]
OR
❍
(4) Futaba S3115 Micro Precision Servos
[FUTM0415] [38.9 oz-in (2.8 kg-cm) of torque]
Connectors
❍
(1) “Y” harness [FUTM4135]
❍
(3) 16" [400mm] extension [FUTM4145]
❍
(1) 9" extension [FUTM3910]
Motor Recommendations
The Extra 300SP EP ARF comes with a mounting box for the
Great Planes RimFire brushless out-runner motor. The motor
has been tested with this plane and works well.
❍
Great Planes RimFire .32 (42-50-800) Brushless Out-
runner Motor [GPMG4700]
ESC
A brushless ESC (electronic speed control) is required for
the recommended motor set-up. We recommend using the:
❍
Great Planes Silver Series SS-45A Brushless ESC
[GPMM1840]
Flight Battery
We recommend the Great Planes ElectriFly LiPo 2200mAh
11.1V, 3200mAh 11.1V battery or FlightPower 2200mAh 11.1V
and the 2550mAh 11.1V with an APC 13"
8E propeller.
❍
Great Planes ElectriFly LiPo 2200mAh 11.1V 30C
discharge w/balance plug [GPMP0861]
❍
Great Planes ElectriFly LiPo 3200mAh 11.1V 25C
discharge w/balance plug [GPMP0871]
❍
FlightPower Pro50 LiPo 2200mAh 11.1V 50C
(FPWP5000)
❍
FlightPower Pro50 LiPo 2550mAh 11.1V 50C
(FPWP5040)
❍
APC 13"
8E Propeller (APCQ3080)
For all out 3D type fl ying we recommend the Great Planes
ElectriFly LiPo 4S 14.8V 2200mAh 30C (GPMP0862) battery
with an APC 12
6E (APCQ 1260) propeller. A voltage regulator
