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WALKERA
V120D02S
discussion/review |
Before I
start with the review, I
would like to compliment
EHIROBO on their excellent
service. Shopping with them
is safe, and shipment is
fast. Not only are their
helicopters well priced, but
EHIROBO's after sales service
are outstanding, and their
technical team are always
willing to give you a
helping hand no matter what.
It is evident
that Walkera
designed the
Walkera V120D02S
to be as durable
and crash
resistant as
possible. The
helicopter looks
and feels solid.
Before I
purchased my
Walkera
V120D02S, I
watched a
video clip on
YouTube where a
guy is flying
his helicopter
several times
into a wall on
purpose to
demonstrate it
durability.
Unfortunately
the video was
removed since
then, otherwise
I would have
posted the video
link on this
review. This is
an awesome
looking mini 3D
capable
helicopter.
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Technical and
Designing Review |
The Walkera V120D02S is available as a RTF
kit that includes the Devo 6, 7, 8 or 12-channel
transmitter. If you have a Devo transmitter, you can also
buy only the helicopter. Just make sure that you order the Walkera
V120D02S helicopter with RX2622V-D receiver. As I mentioned
before, the Walkera V120D02S was designed to be ultra
durable. The main rotor blades are plastic, and not the
usual fragile foam core blades.
The main
rotor blade holders, rotor
head, swash, mainframe and
landing skids are all
plastic. Not only are they
strong, but also keep the
total weight of the
helicopter down. Three
digital WK-02-1 servos are
connected to the swash for
cyclic and collective
control. A 12000 KV
brushless motor
(WK-WS-15-001) and 20Amp
speed controller
(WK-WST-20A-L) gives the
Walkera V120D02S sufficient
power to perform 3D stunts.
The main gear was also
redesigned with larger tooth
to prevent stripping of
gears when the helicopter
crashes.
A
sophisticated three-axis
gyro system is incorporated
into the RX2622V-D receiver.
What I like about the
Walkera V120D02S is that the
LiPo battery can be changed
without removing the canopy
like on previous 120 size
Walkera helicopters. The
battery slides into position
from the back into the
battery tray. The square
graphite tail boom is
supported with two graphite
tail boom struts for extra
strength. The tail rotor is
driven via torque tube, and runs inside the tail
boom on two ball bearings.
The torque
tube and tail rotor gears
have also been redesigned
with larger tooth to make
them more crash resistant. A
WK-03-4 digital tail servo
controls the tail rotor
pitch, and is situated on
the tail boom. The
horizontal fin is plastic,
while the vertical is fin
laser cut out carbon fiber.
Although the tail rotor
assembly is plastic, it is
strong enough to handle 3D
maneuvers. The Walkera
V120D02S is a great looking
helicopter with its black and red
plastic canopy.
Overall it
is noticeable that Walkera
gave this helicopter a lot
of thought when they
designed this little durable
3D capable helicopter. I
personally like belt drive
tail rotors over torque
tube, but other than that,
this helicopter deserves
five stars from me.
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Included in the
WALKERA
V120D02S Kit |
• V120D02S
Flybarless
helicopter
• Li-Po Battery
Charger
• 3.7V 600mAh
Li-Po Battery
• Spare main
blade X 1 pair
• Spare tail
gears set
• Instruction
manual
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WALKERA
V120D02S Specification |
• Main rotor
diameter: 302mm
• Tail rotor
diameter: 85mm
• Overall
length: 290mm
• All-up weight:
80g (Battery
included)
• Battery: 3.7V
600mAh Li-Po
• ESC:
WK-WST-20A
• Brushless
motor:
WK-WST-15-001
• Receiver:
RX-2622V-D
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Not Included in
the WALKERA
V120D02S Kit |
• Walkera
Devo Transmitter
There is no
setup needed if
you buy the
RTF Walkera
V120D02S
helicopter with
the
Devo Transmitter.
A complete
helicopter setup
is done at the
Walkera factory,
so all you need
to do is to
fine-tune the
default settings
to suite your
flying skills.
If you buy
the helicopter
only,
the settings for
all the Devo
transmitters are
included in the
manual for fast
and easy setup.
Programming the
Walkera V120D02S
settings onto my
Devo 8
transmitters was
fast and easy.
It is always
good practice to
give any new RC
helicopter a
thorough
pre-flight
inspection
before its first
flight. Make
sure that all
the screws are
tight and that
the main motor
gear messing
with the main
gear is set
correctly. Also
check that the
main rotor blade
tracking is 100%
in line.
|
Flying the
WALKERA V120D02S |
I was very
surprised on my
first flight
when no trimming
was required.
This helicopter
flies very
stable in
hovering and
forward flight.
Of all my 120
size Walkera
helicopters, the
flybarless
system of the
RX-2622V-D
receiver is the
best up to date.
I'm so
impressed, I have ordered
two RX-2622V-D
receivers for my
Walkera M120D01
and V120D05-V2.
For 3D flight
you have to
adjust the elev/aile
gyro sensitivity
and elev/aile
extend pods on
the receiver to
suite your
flying skills.
My elev/aile
gyro sensitivity
is set to 45%
and the elev/aile
extend to 80%.
These settings
work well for me
to perform 3D
stunts.
According to the
manual, the Devo
transmitter
setting for the
gyro has to be
set on manual. I
found the tail
to be very loose
and sensitive on
the manual
setting. I
changed the gyro
setting on my
Devo 8 to
automatic, and
the tail is
solid through
out the whole
flight.
The Walkera
V120D02S flies
very stable in
wind and no wind
conditions. That
just shoe you
how efficient
the 3-axis gyro
stabilization
system works on
this helicopter.
Even in inverted
flight, the gyro
holds the tail
solid without
any drift.
Pirouette speed
is a bit slow
with the gyro
setting in the
automatic mode,
but rather slow
than out of
control. If
Walkera keep on
manufacturing
new flybarless
helicopters in
the future like
the Walkera
V120D02S, they
will become the
most popular
brand out there.
This helicopter
is not for the
beginner, but if
you have
previous
experience, the
Walkera V120D02S
is a perfect
inexpensive and
durable
helicopter to
start 3D flying
with. I get
about six
minutes of
flight time when
flying stunts,
and eight
minutes in
normal mode. I
absolutely love
my little
Walkera
V120D02S.
|
Reason to buy
the
WALKERA
V120D02S |
The Walkera
V120D02S is a
professional 3D capable
helicopter
It is quite easy
to fly if you
have previous
collective pitch flying
experience.
The 3-axis
flybarless gyro
system is the
best 120 size
Walkera
helicopter
system up to
date
It is cheap to
maintain.
The parts are
easily
obtainable.
The Walkera
V120D02S flies
very stable in
wind.
Flying the
Walkera V120D02S is a
pleasurable
experience.
I highly
recommend this
helicopter to
anyone that is
looking for an
inexpensive
durable 120
size
professional 3D capable helicopter. This
helicopter won't
disappoint you.
Happy Flying…
|
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|
120º/140º CCPM Swashplate
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