Heli-Max HMXE0200 - Manual (Page 2)

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
DECISIONS YOU MUST MAKE. . . . . . . . . . . . . . . . . . . 2
ASSEMBLE THE TAIL. . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALL THE PUSHRODS . . . . . . . . . . . . . . . . . . . . . . 4
INSTALL THE SERVOS. . . . . . . . . . . . . . . . . . . . . . . . . 5
FINAL ASSEMBLY & SETUP . . . . . . . . . . . . . . . . . . . . 7
CHECK THE CONTROL DIRECTIONS . . . . . . . . . . . . . 9
BLADE BALANCING . . . . . . . . . . . . . . . . . . . . . . . . . . 9
ADJUST COLLECTIVE PITCH . . . . . . . . . . . . . . . . . . . 9
ADJUST BLADE TRACKING . . . . . . . . . . . . . . . . . . . 10
RANGE CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
MOTOR SAFETY PRECAUTIONS. . . . . . . . . . . . . . . . 10
MX400 PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . 11
PARTS DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . . 12
PITCH GAUGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
The Heli-Max MX400 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 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 visit the Heli-Max web site at
www.bestrc.com/helimax
. Open the “Helicopters” link, and
then select the MX400 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 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 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, you will need a computer
radio capable of at least two sets of throttle and pitch curves.
The Futaba
® 6EXH radio 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. FUTK60** or FUTK61**
Servos
You will need four servos for the MX400. 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 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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