Heli-Max HMXE0205 - Manual (Page 2)

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DECISIONS YOU MUST MAKE. . . . . . . . . . . . . . . . . . . 2
ASSEMBLE THE TAIL. . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALL THE PUSHRODS & SERVOS. . . . . . . . . . . . . 4
FINAL ASSEMBLY & SETUP . . . . . . . . . . . . . . . . . . . . 8
CHECK THE CONTROL DIRECTIONS . . . . . . . . . . . . 10
BLADE BALANCING & INSTALLATION . . . . . . . . . . . 10
ADJUST COLLECTIVE PITCH . . . . . . . . . . . . . . . . . . 10
SET CONTROL THROWS . . . . . . . . . . . . . . . . . . . . . . 11
ADJUST BLADE TRACKING . . . . . . . . . . . . . . . . . . . 11
RANGE CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . 11
MX400 PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . 12
PARTS DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . 13
PITCH GAUGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
The Heli-Max MX400 Pro ARF is a fully aerobatic-capable
helicopter, offering the performance and flying manners of a
30-sized machine in a much smaller and more convenient
package. The MX400 Pro is no “toy” helicopter. With its
double-damped head, belt-driven tail rotor, and aluminum
frames, this is a “real” helicopter, ready to fly anywhere you
can find a safe landing pad.
Take care to build straight and true. Misaligned parts will hurt
the helicopter’s ability to perform the extreme aerobatics it is
designed for.
For the latest technical updates or manual corrections to
the MX400 Pro visit the Heli-Max web site at
www.bestrc.com/helimax. Open the “Helicopters” link, and
then select the MX400 Pro ARF. If there is new technical
information or changes to this model a “tech notice” box will
appear in the upper left corner of the page.
In the hands of a capable pilot, the MX400 Pro is an
impressive 3D performer. But for this helicopter to perform
to its full potential, it must be properly equipped with all the
right gear (servos, batteries, receiver, speed control). There
may be more than one type and brand of radio equipment
that can be used. But based on extensive testing, following
is the equipment we recommend so you can get the most
performance out of your MX400 Pro and assemble it as
shown in this instruction manual.
Transmitter
At a minimum, this helicopter requires the use of a six-
channel helicopter transmitter capable of mixing between
the throttle and collective pitch channels. However, to
unleash the full aerobatic potential of the MX400 Pro, you
will need a computer radio capable of at least two sets of
throttle and pitch curves. The Futaba
® 6EXH radio
(FUTK60** or FUTK61**) is an excellent entry-level radio for
use with this helicopter. For more programming capability,
any of Futaba’s higher channel-count computer helicopter
radios will work very well.
Servos
You will need four servos for the MX400 Pro. The servos
should weight less than 10 grams apiece, and should have
a minimum torque output of 14 oz-in. A good speed rating is
also important for helicopters, and we recommend that you
choose servos with a speed of 0.12sec/60deg or less. We
recommend the Futaba S3103 (FUTM0037) and S3107
(FUTM0025) for use with this helicopter. Note: The Futaba
S3108 servo will not mount to this helicopter without
modification, and is therefore not recommended.
Receiver
You will need a 6-channel receiver for this helicopter. A
small PCM receiver is strongly recommended for the noise
rejection and failsafe capabilities that PCM offers. We
recommend the Futaba R146iP receiver (FUTL0601) You
will also need a single conversion crystal to use with this
receiver. While most Futaba receivers are sold on high and
low bands, the R146iP is not banded and can use either
high or low band crystals.
Low band (channels 11 – 35) Crystal FUTL62**
High band (channels 36 – 60) Crystal FUTL63**
**Replace the “**” in the order number for the crystals with
the preferred channel number. For example, if you want to
fly on channel 33, order crystal number FUTL6233.
DECISIONS YOU MUST MAKE
CAUTION: Be aware that the MX400 Pro is
operated on the same frequency band as larger R/C
models. If flying your heli within five miles of an R/C site,
there is a real possibility that you could be operating your
model on the same frequency (channel) as another R/C
pilot. If this happens, a crash will result—with the person
flying the more expensive model suffering the greater loss
(and having greater potential for property damage or
injury). The best thing to do is to join an R/C club and fly
at the site where frequency control measures will be in
effect. If you insist on flying elsewhere, always be aware
of your proximity to R/C flying sites.
INTRODUCTION
TABLE OF CONTENTS
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