Walkera Master CP

 

 

 

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 Master CP – 200 size FBL helicopter – 6 Axis Gyro

 

Overview:

This is a 200 size FBL helicopter with a 6 axis gyro. It uses two brush motors.
It is a 3D helicopter for beginners. It is extremely stable and said to be ultra durable and easy to maintenance.
It has plastic blades with a CF rod inside to reinforce the blade.
This is a bigger size helicopter than the micros (about twice the size) and has a big motor
and blades that are sharp. You don’t want to get cut by them so be careful.

 

First Impressions:

The helicopter looks sharp. It feels well built.
The canopy is mounted securely and is easy to remove.
The main motor is the biggest brush motor I have ever seen. It is the motor from the 400 size helicopter so it should have good power on this hel.
The tail motor is large also. It has a cover on it that slides off and the motor has connectors on it for fast replacement.
The wiring is done very neatly.

 

First Flight:

I setup the TX with my own settings and checked out the heli.
The swash was at zero degrees pitch mid stick and had equal travel for positive and negative pitch. Also the blades were balanced and tracked well.
I throttled up and took off slowly as I haven’t flown a heli this big in a long time and also don’t know how the heli will handle.
It is ultra stable! It was like flying my Mini CP but even more stable with the 6 axis gyro and the large and heavy size of it.
The second flight I was able to fly around pretty well about as good as I can with my Mini CP or mCPX.

The Master CP has a sound like a T-Rex 250. I thought I was flying a T-Rex by the sound of it.

 

Pros:

  • Ultra stable, responsive, and smooth flying
  • RX Firmware can be updated
  • Good flight time (About 5-6 minutes scale flying)
  • Built well and easy to work on. The wiring is done very neatly.
  • Metal gear servo upgrade now available

Cons:

  • Stock plastic gear servos are stripping very easy. They are even stripping if you just move them by hand.
  • Telemetry feature won’t work unless you update the firmware.
    You will need to buy adapters to do this and download firmware from Walker’s web site.
  •  There is a throttle hold shut off delay. “When you hit throttle hold there is a 1-2 second delay when you engage the Throttle Hold. “When you hit the throttle hold switch the helicopter keeps on spinning at speed for almost 2 seconds.  This is causing severe damage on impact as the helicopter is still going at speed”.
  • Many Master CPs will not accept Fixed ID binding at all where ELV servo is plugged in not using the stock factory servo.

 

 

Head Speed: – Stock brush motor

  • 4,140 RPM at mid stick 100% throttle with the stock battery.

 

Thrust: – Stock brush motor

I couldn’t measure this as the heli was too heavy for my scale.
Without the battery I could have measured the thrust though.
WIll have to get a higher capacity scale for these bigger helicopters.

 

Flight Time: – Stock battery charged four times. Walkera says 7-9 minutes flight time. I think I could get one more minute or more of flight time as I only put back in 616 mah
into the battery which I could have went down to 800 mah using the full capacity (1,000 mah) minus 20 % rule.

  • 2 Minutes: 11.5V (3.85V per Cell)
  • 3 Minutes: 11.3V (3.79V per Cell)
  • 4 Minutes: 11.2V (3.73V per Cell)
  • 5 Minutes: 11.1V (3.70V per Cell)
  • 616 mah put back into the battery at 1C (1,000 mah) charge rate. 44:13 minutes to charge.

 

Telemetry:

I have found out that using the telemetry eats up the battery time.
I went from 5 full minutes of flight time on my Master CP with telemetry
inhibited in the TX to 1:25 minutes flight time with the telemetry enabled.

I found the same thing with my Mini CP, 1:25 minutes flight time with the telemetry enabled
and 3 minutes flight time with the telemetry inhibited.
My friends Mini CP had the same results as I did with telemetry inhibited and enabled.

 

 

Specifications:

1).Main Rotor Diameter: 462mm
2).Tail Rotor Diameter: 113 mm
3).Overall Length: 440mm
4).All-up Weight: 420g (Battery included)
5).Battery: 11.1V 1000mAh Li-Po
6).Moril Motor: 380PF
7).Tail Motor: 1627PF
8).GYRO: 6-axis
9).Receiver: RX-2637H-D
10).Servo: WK-7.6-6
11).Transmitter(standard) – DEVO-7E
12) .Transmitter(Optional) – DEVO-6/7e/8s/10/12s

 

Final Thoughts:

I had a fun time flying this helicopter and was surprised how ultra stable and smooth flying it was.
It looks sharp and seems to be built well. It has decent power.
When I get more use to it I will make some videos flipping and inverting it.
Also I don’t have any spare parts and there is the servo stripping issue.

Bob at HeliRCStore sent me the Master CP to review at my request.

Thanks Bob for sending me the helicopter!

http://helircstore.com/

 

——————————————————————————————————-

EDIT:

I will be adding information here on the servos from what people post in this thread.
This way it will be easy to find and won’t get buried in pages of posts.

Update 9/28/12
Update 10/4/12
Update 10/11/12
Update 10/12/12

http://www.rcgroups.com/forums/showp…1&postcount=10

http://www.rcgroups.com/forums/showp…3&postcount=11

http://www.rcgroups.com/forums/showp…1&postcount=14

http://www.rcgroups.com/forums/showp…5&postcount=15

http://www.rcgroups.com/forums/showp…3&postcount=25

http://www.rcgroups.com/forums/showp…7&postcount=71

http://www.rcgroups.com/forums/showp…9&postcount=74

 

Upgrades: Brushless Motors, Metal Servo Gears, Blades, and more

http://www.rtf-heli.com/WALKERA_MASTER_CP_MODS.html

 

 

 

 

 

Walkera Master CP – Complete Overview 1

 

Walkera Master CP – Complete Overview 2

 

Walkera Master CP- Close-ups

 

Walkera Master CP – First Day Flight

 

Walkera Master CP – Third Day Flight

 

Walkera Master CP – First flight in a field

 

 

 

 

Buildem336 (Manuel) flying the Master CP 100% stock out of the box.

 

Walkera Master cp 3d flight

 

 

 

 

“My text, pictures and videos are Copyright 2009-2015 Tom Zadar”

Please consider a small donation. Your donations will help pay for my expenses to keep this site up and running so I can continue to provide you with the Reviews and Transmitter Setup Guides.           I appreciate your support!
     

11 comments

  • Philip Traina

    Tom
    About Master CP with Devo 7
    I went on your setup site for Devo 7 step 2 & 3 I completed all the settings.
    In one setting you mention makes sure I set the setting with throttle stick centered and refer back to another program. I don’t know what to refer to about center stick how do I correct When I turn my transmitter on I have throttle control @ zero on bottom stick. When I switch the mix switch from zero to 1 or 2 throttle stick down transmitter reads 100% with the helicopter off.
    I manually setup from the original helicopter manual so I am familiar with setting throttle control from center stick and rotating both stick to read succeed. How do I do this in mix mode 1 & 2?
    I am a novice do I switch the mix switch before flight or while in flight for the different flight modes and if I need to find tune adjustments do I do this by putting mix switch in the mode I need to tune?

  • Hi Philip,
    The throttle position at mid stick is for stunt modes for 3D flight.
    You want zero degrees pitch at mid stick throttle.
    It sounds like you are using the MIX switch for your stunt modes which is fine. You want to start in normal mode and when you are in a hover you can switch to stunt modes and back to normal mode also.
    Your heli may rise and drop in height switching between modes if you don’t have the throttle curves matched.

    See my setup guide here. If you follow this you will have no height change at all switching between modes.

    http://www.rcproreviews.com/walkera-master-cp-3d-settings-2/

    Here is a good video on how to set zero degrees pitch at mid stick.

    http://www.youtube.com/watch?feature=player_embedded&v=PX9UgHfg_NM

  • Prof1943

    Master CP Motor issue
    I have an ~ 2 year old Master CP that has eaten 5 stock motors and I’ve changed out the ESC once to see if the ESC was the source of the motor failure. The motors don’t quit they just fail to produce lift even at max pitch. The first three motors were eaten with the original ESC, The second ESC ate 2 more. By eating motors I mean that the motor lasts (with no lift/ flight issues)1-6 months then suddenly there is not enough lift to get the heli more then 1/4″ of the ground. Have 4 original batteries and just purchased a new one to see if I had bad batteries. I am not a fancy pilot (I’m just learning to turn etc. and I only use two batteries before giving the motor a rest). I use both Devo 7 & 10 (on my other helli’s too w/o problems) so I don’t think that I have Tx issue. The only thing left in the electrical circuit is the receiver. It is hard for me to understand why a defective Rec. (or any other component) will work well when I install a new motor then fail as time progresses or cause the ESC to overload the motor or etc.
    I would appreciate some thoughts/ help from some of you more experienced pilots.
    Thanks e.j.

  • kippenrk

    Hi Guys new hobbyist needs help. I purchased a Walkera V450D01 for Christmas and I got a Devo-10 transmitter with it. So now I wanted to add a Master CP to the collection. I need help with the Master CP settings on the Devo-10 transmitter. I went through the configuration settings on this site and I think I have them all set correctly. However, when I bind the TX/RX they bind correctly. I spin up the CP and it has a lot of push on the tail rotor. I wants to just spin on the ground. I haven’t lifted it off the deck yet. ANY help from someone with this same experienced would be greatly appreciated. Thanks in advance.

    • I was also going to ask which way the heli is spinning, CW or CCW? If it is spinning CCW make sure the gyro gain is up high enough. My Master CP setup guides list anywhere from 70-80% to start with. If the gyro gain is too low the heli will drift or spin CCW. Make sure the Rudder setting in REVERSE is set to normal.
      Also a CCW drift or spin can be caused from a loose tail rotor blade like Prof1943 said or a cracked or bent tail blade, weak tail motor, missing or damaged teeth, gear slipping on the tail motor shaft or tail rotor shaft.

  • michael barnett

    I’ve been trying to set up my Devo 7 for my aster CC. No luck now the tx is frozen the display saysthhl d and under that is thst k. How do I unlock it?

  • Philip Traina

    Hi Tom
    The setup I used was from your videos on you tube Walkera Devo 7 TX Set Up Part 2 and 3
    Followed your video and entered every setup identical to your settings from the video in the transmitter
    Hope this will help
    Thanks for the quick responce

  • Hi Philip,
    The throttle position at mid stick is for stunt modes for 3D flight.
    You want zero degrees pitch at mid stick throttle.
    It sounds like you are using the MIX switch for your stunt modes which is fine. You want to start in normal mode and when you are in a hover you can switch to stunt modes and back to normal mode also.
    Your heli may rise and drop in height switching between modes if you don’t have the throttle curves matched.

    See my setup guide here. If you follow this you will have no height change at all switching between modes.

    Setup for the Walkera Master CP – RX2637H-D Receiver – Devo Transmitter

    http://www.rcproreviews.com/walkera-master-cp-3d-settings-2/

    Here is a good video on how to set zero degrees pitch at mid stick.

    http://www.youtube.com/watch?feature=player_embedded&v=PX9UgHfg_NM

  • Your welcome. What Master CP settings are you using, standard & beginner settings or 3D settings? Which direction is the heli spinning?
    Sounds like the settings for throttle normal mode are not correct. Or something on the heli is causing the motor speed to decrease under heavy pitch like a bad connection, bad battery, or defective ESC.

  • I resent the email using your email address in your Contact Info. Subject title is: Master CP Motor issue‏. If you don’t get this one send me an email and I will reply to it:

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