Gyro Recommendation
We recommend the use of a heading-hold gyro with this
helicopter. The Futaba GY240 gyro (FUTM0809) is an
excellent choice.
Battery
The MX450 requires a 1200-2000 mAh 3-cell Lithium-Polymer
(LiPo) battery capable of delivering 15A of current continuously.
We recommend the ElectriFly
™
11.1V 2100 mAh pack
(GPMP0841). This battery will deliver approximately 7 minutes
of flight time with the recommended motor and speed control.
Motor
You will need a brushless motor capable of handling 15A of
continuous current, and up to 22A in bursts. The motor
should also have a kV rating of 2500-3000 RPM/V for use
with the included pinion. We recommend the ElectriFly
Ammo 28-45-2700kV (GPMG5215).
Speed Control
A 35-Amp or better brushless electronic speed control
(ESC) is required for this helicopter. We recommend the
Heli-Max 40A Brushless ESC (HMXM3004).
Charger
A charger capable of charging 3-cell (11.1V) LiPo batteries
such as the ElectriFly PolyCharge 1-3-cell LiPo charger
(GPMM3010) must be used. If using another charger, it
must be a LiPo charger or have a LiPo charge mode. Never
charge LiPo batteries with chargers not intended for LiPo
batteries or chargers on NiMH or NiCd settings.
Overcharging or explosion may result. In addition to the
PolyCharge, the ElectriFly Triton
™
(GPMM3150) and Accu-
Cycle Elite
™
(HCAP0280) are also suitable chargers.
Battery Charging Leads
Many chargers (including the Triton and Accu-Cycle Elite
listed above) do not include charging leads, but rather have
banana jacks to plug the leads into. If this is the case with
your charger, you will need to purchase a charge lead to
match your battery. For the recommended battery pack, the
correct lead is GPMM3105.
❏
1. Install the aluminum horizontal stabilizer and the horizontal
stabilizer bracket onto the tail boom with two 2 x 8mm metal
screws. Do not fully tighten the screws at this time. Be sure to
add a drop of threadlocker to each screw.
❏
2. Secure two aluminum tail strut ends and the rear frame
spacer to the frames with two 2x10mm machine screws as
shown. Use a drop of threadlocker to secure each screw.
❏
3. Secure two tail strut ends to the aluminum horizontal
stabilizer bracket with 2x8mm metal screws. Use a drop of
threadlocker to secure each screw.
ASSEMBLE THE TAIL
IMPORTANT!
INSPECT YOUR HELICOPTER
Check all screws on the helicopter for tightness. If any
screws are loose, tighten them before flying. If any
machine screw that threads into a metal part is loose, be
sure to secure it with a drop of threadlocking compound.
This check should include the tail blade grip screws,
which will require removal of the tail rotor blades.
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