Walkera 4G6 Helicopter – Stock and Modified Review

RC Pro Review by: Tom Zadar

Transmitter Setup Guide

See my Transmitter Setup Guides for transmitter setup. The setup guides have all of the transmitter settings needed to make a model completely from scratch.
The Tx Setup Guides have different difficulty settings depending on which setup guide you choose. For Helicopters there are Standard Settings, Beginner Settings, 3D Settings. For Quads there are Standard Settings, Beginner Settings, 3D mode settings.
Each setup guide includes everything needed for setup including Model Type, Swash Type, Servo Reverse, Travel Adjustment, Gyro Gain, Throttle Curves, Throttle Hold, Pitch Curves, Pitch Curve/Throttle Hold, Subtrim, MIX, Switch Assignments, Dual Rate and Expo.
I added a bonus to every setup guide with a Dual Rate and EXPO settings guide I made for Helicopters and Quads.

Review

Walkera 4G6

Overview:

The Walkera 4G6 is a collective pitch helicopter with a flybar. The main blades are made of foam with a carbon fiber insert to reinforce the blades. The tail blade is driven by a shaft that runs through the boom.
The main motor is a brushless Walkera 005 motor which also drives the tail rotor. The 005 motor is not good. This is a well known problem.
The motor usually only lasts 10-20 flights then is looses power and you need to replace it. Mine lasted 10-15 flights or so. If you are going to get this helicopter with the 005 motor plan on changing it to another motor. You can use the Black TA 31714 16,800KV inrunner motor which I used and it worked well. It generates an additional 400 RPM from stock motor.
If you want to use an outrunner motor there are many choices to choose from. The one I like best is the Turbo Ace 915 V2 9g w/14T pinion. It has tremoundus power and is well built. I run it with the XP-12A-2 High Speed ESC. This is a great combination.
Other are using the HP08S outrunner motor with good results. I will list information on the motors below.

The landing gear is extremely durable. I am still using my original landing gear after all
the hard landings and crashes I had.
The tail gears can strip easy on a crash or if the tail blades hit the ground or grass. I recommend using a tail clutch. I have a link to one below which I am using with good results.
The body has held up well for me. I haven’t broke a tail boom or stripped any servos.
I have bent the flybar many times, stripped the main gear a number of times, and broke some main blades.

I added the following upgrades.

Walkera RX2610V V2 (3-Axis Gyro). This made the helicopter very stable. It can be used with or without a flybar. I used it with a flybar.
Turbo Ace 915 V2 9g – This is a very powerful motor.
XP-12A-2 (V2) High Speed ESC – Increases head speed by 5%-8% and it is programmable.
Stay-True Dkfuji CNC Metal Rotor Head Block – It is very strong, well balanced, and works great with the high speed aftermartket motors. I highly recommend it.
MicroHeli CNC Swashplate
MicroHeli CNC Tail Pitch Slider
MicroHeli CNC Tail Gear Case
Tail clutch by microlinehobbies – http://www.rcproreviews.com/adjustable-clutch-for-walkera-v120d02d02s464g6heli-max-novus-125-cpfp/

Specs: – Stock Walkera 4G6

Weight: w/battery 88G
Receiver: RX-2609
Battery: 3.7V 600 mAh
Brushless Motor: WK-WS-12-005
ESC: WK-WST-10A-L

Flight Time: 7-8 minutes

Motors:

Walkera 005

Head Speed: 4,450 RPM w/14T

Head Speed: 3,940 RPM w/12T

Walkera 003

Head Speed: 4,230 RPM w/16T

Turbo Ace 915 V2 9g

Head Speed: 4,350 RPM w/14T

For my full review of this motor including flight times and thrust see this link: http://www.rcproreviews.com/turbo-ace-915-v2-9g-helicopter-motor-review/