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WALKERA
V120D05-V2
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.
When I lifted
the Walkera
V120D01-V2 out
of the box I
noticed four opening
vents on the
canopy. It looks
a bit strange,
but gives
adjustment
access to the
receiver pots
with out
removing the canopy. Overall, the
helicopter looks
great with its
red and black
streamline
canopy. The
helicopter is
well package in
a carton box to
ensure that no
damage will
occur when
shipped.
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Technical and
Designing Review |
You can purchase the Walkera V120D05-V2 as a
ready to fly kit that includes the WK-2603 transmitter, or
without the transmitter. If you already have a WK-2801 Pro
transmitter, you only have to purchase the helicopter. The
RX-2615V receiver of the Walkera V120D05-V2 will bind
with the WK-2801 Pro transmitter. The Walkera V120D01-V2 has foam main rotor
blades that are very efficient and not that expensive to
replace if needed. You can always upgrade to carbon fiber
main blades, but the foam blades works really well. The
rotor head, blade grips and swash are CNC machined out of
red anodized aluminum. The mainframe, battery tray and
landing skids are moulded out of plastic. Two ball bearings
are imbedded in the plastic mainframe, and ensures for smooth running of the
main shaft.
The Walkera
V120D01-V2 utilizes the
WK-WS-15-001 12000kv
brushless motor and 20A
WK-WST-20A-L speed
controller to power up this
helicopter. Three digital
WK-02-1 servos are connected
to the swash for cyclic
control, and one digital
WK-03-4 servo for the tail.
A tail servo bracket secures
the tail servo on the metal
tail boom, and can be moved
forward or backwards if
needed. Two graphite tail
boom struts are screwed to
the landing skids and
plastic horizontal tail boom
fin for extra support.
The tail
rotor is driven by a belt
that runs inside the tail
boom. A carbon fiber
vertical tai fin protects
the tail rotor from hitting
the ground when spinning.
Two ball bearings in the
metal tail rotor hub ensures
for smooth running of the
tail rotor shaft. The tail
rotors are plastic, and the
tail rotor blade holders
are aluminum. The battery tray
for the 3.7V 850mAh LiPo
battery
situated below the receiver.
The LiPo battery slides into
position from the front, so
the canopy
needs to be removed every
time to replace the LiPo
battery.
The Walkera
V120D05-V2 is a 120 size 3D
capable helicopter that
utilizes the 3-axis gyro and
flybarless balance control
system and ensures for stable flight in
normal mode and stunt mode. All three the gyros are
incorporated on the RX-2615V receiver. The aileron and
elevator gyro sensitivity
can be adjusted on the
receiver, while the tail
gyro gain is adjusted
remotely on the transmitter.
The signal control speed
from the elevator and
aileron servo can be
adjusted on the receiver
with the Balance Delay pot.
The amounts of movement for
the elevator, aileron and
tail servos can be adjusted
with the servo extend pots
on the receiver.
The Walkera
V120D05-V2 has a beautiful
red and black plastic canopy
that fits perfectly with the
LiPo battery installed. Four
opening vents on top of the
canopy allows airflow over
the ESC and brushless motor
for extra cooling during
flight. The overall
quality of the Walkera
V120D05-V2 is very good.
|
Included in the
WALKERA
V120D05-V2
Ready To Fly Kit |
• V120D05-V2
Flybarless
helicopter
• 3.7V 850mAh
Li-Po Battery
• Spare main
blades X 1 pair
• Instruction
manual
|
WALKERA
V120D05-V2
Specification |
• Rotor
Diameter: 305mm
• Tail rotor
diameter: 85mm
• Overall Length: 293mm
• Weight: 106g
• Battery: 3.7V
850mAh LiPo
• Brushless
Motor:
WK-WS-15-001
• ESC:
WK-WST-20A-L
• Receiver:
RX-2615V
• Dimension:
294*56*103mm
|
Not Included in
the WALKERA
V120D05-V2 Ready To
Fly Kit |
• Transmitter
and LiPo battery
charger.
There is no
setup needed if
you buy the
Walkera
V120D05-V2
helicopter with
the
WK-2603
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.
I'm using my
own
WK-2801PRO
Transmitter
to fly my
Walkera
V120D05-V2.
Click Here
to view my
WK-2801PRO
Transmitter
settings. On the
video below, my
receiver pot
settings are as
follow:
• RUDDER EXT:
50%
• ELEV AILE EXT:
50%
• AILE GYRO:
40%
• ELEV GYRO:
40%
• BAL DELAY:
20%
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
V120D05-V2 |
The default
factory receiver
setting for the
Walkera
V120D05-V2 is
setup for normal
flight only. If
you want to fly
loops and rolls,
you need to
adjust the
aileron and
elevator gyro
sensitivity, as
well as the
balance delay on
the receiver. My
receiver
settings above
are pretty much
setup correctly
to loop the
Walkera V120D01-V2
effortless. This
helicopter is
very silent
during flight. I
found the
Walkera V120D05-V2 very
stable in normal
flight and stunt
mode. The
flybarless
balance system
with its three
gyros works very
well.
I have tried to
fly the
helicopter in
normal flight
without the
elevator and
aileron gyro (flight mode
switch on the
receiver in the
off position),
but the
helicopter is
very unstable
and almost
uncontrollable.
With the flight
mode switch in
the on position,
all three gyros
balance the
helicopter
perfectly, which
makes it a
pleasure to fly.
Transition into
forward flight
is smooth and
executed
effortless.
There is no nose
up or down
pitching
tendencies when
rolling out of a
bank.
Tail movements
are crisp, and
pirouette speed
can be adjusted
with gyro gain
adjustments on
the transmitter.
The tail gyro is
solid with no
signs of tail
wagging during
flight.
The Walkera
V120D01-V2 will
fly about nine
minutes in
normal flight
mode on the 3.7V
850mAh Li-Po
Battery. I have
set my
transmitter
alarm timer to
five minutes for
3D flight.
This helicopter
is not designed
for beginners. S
if you have
previous
collective pitch
helicopter
experience, you
will love this
little R/C
helicopter.
|
Reason to buy
the
WALKERA
V120D05-V2 |
The Walkera
V120D05-V2 is a
3D capable
helicopter
It is quite easy
to fly if you
have previous
collective pitch flying
experience.
The 3-axis
flybarless gyro
system works
great.
It is cheap to
maintain.
The parts are
easily
obtainable.
The Walkera
V120D05-V2 can
be flown in
wind.
Flying the
Walkera
V120D05-V2 is a
pleasurable
experience.
I highly
recommend this
helicopter to
anyone that is
looking for an
inexpensive 120
size
3D capable helicopter. This
helicopter won't
disappoint you.
Happy Flying…
My Walkera
V120D05-V2 flown
outside in windy
conditions
|
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Setup e-Guide
|
120º/140º CCPM Swashplate
Setup e-Guide |
|
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|
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