Walkera Mini CP Helicopter Review

 

Walkera Mini CP Helicopter

 

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 Mini CP helicopter – Devo 7 TX.

I have finished building the Mini CP completely from scratch with a pile of parts bags
and some of my Genius CP parts (servos, swash, main shaft, main blades, and rotor head set).

 

 

First Impressions:

The Mini CP looks sharp and is ultra stable. More stable than the Genius CP IMO. It flies nice and smooth. The tail holds well in full pitch pumps.
There is no CCW yaw like there is with the Genius CP, at least for my MCP.

The Mini CP takes a crash very well flying over grass and hitting throttle hold before crashing.
I crashed it in a tight fast turn, flying, and inverted. There was no damage at all. Even the main gear didn’t slip down.
I am using a 50% across pitch hold curve. This will help minimize damage in a crash as the swash and blades will be at mid stick zero degrees pitch.
The swash does not move with with these settings. CURVES PITCURVE: HOLD – 50-50-50-50-50

 

Pros:

Things I like with the Mini CP over the Genius CP.

1. The landing gear is separate from the frame.

2. Servos are mounted very secure and are very close to the main shaft.

3. RX mounted vertically. No foam between the RX and frame mount.

4. Canopy mounts with two separate CF rods.

 

Cons:

1. The flight time is VERY short! I struggled to get 2 minutes flight time even with the Hyperion 240 mah battery.

2. The canopy is very dark and is hard to see. I will be using the GCP canopy instead when I fly.

 

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.

 

 

Devo 10

I set the Sensor Setting – Voltage – External: V1- Alarm Voltage to 3.5V. This give me 3.72V per cell no load which is pretty good.

 

Flight time:– Stock brush motor. Stock Genius CP battery.

  • 2 Minutes: 3.85V – Power got weak at about 1:40.

Flight time: – Stock brush motor. Hyperion 240 mah 25C battery.

  • 2 Minutes: 3.89V – Power got weak and had to land.

 

Thrust Test: – Stock brush motor

  • 55.8 grams full negative pitch in stunt mode with the stock Genius CP battery.
  • 79.5 grams full negative pitch in stunt mode with the Hyperion 240 mah 25C battery.

 

Head Speed: – Stock brush motor

  • 4,500 RPM at mid stick 100% throttle with the stock Genius CP battery.
  • 4,860 RPM at mid stick 100% throttle with the Hyperion 240 mah 25C battery.

 

Helicopter Weight: – Stock Mini CP

Note: I used all the Motor and ESC plugs. Removing these and the ESC heat shrink will reduce the weight some more.

AUW = 44.9 Grams with stock battery.

 

More Weights:

  • Landing Gear: 1.1G
  • Frame: 2.4G
  • Servo Holder: 0.2G
  • Tail boom with motor, fin, and tail blade: 3.2G
  • RX2632V-D Receiver : 2.8G
  • Main Gear: 0.6G
  • Main Motor: 9.8G
  • Main Frame Bearing: 0.3G
  • Stock Battery: 6.0G
  • Hyperion 240 mah 25C battery: 7.7G

 

Specifications:

1). Overall Length: 220mm
2). Main Rotor Dia. : 241mm
3). Tail Rotor Dia. : 42mm
4). Gyro: Three-axis
5). All-up Weight: 45g (Battery included)
6). Main Brush Motor: 1220FC
7). Tail Brush Motor: 0615R
8). transmitter: DEVO-6/7/12 (Not included)
9). Standard transmitter: DEVO-8S (Not included)
10).Receiver: RX2632V-D Optional
11).Servo: wk-02-4;weight: 2.42g;speed: 0.12sec/60°(3.0~4.5V);dimension: 16.5*6.8*15.7mm
12).Battery: 3.7V 240mAh Li-Po

 

 

Feathering Spindle O-rings

These are the two o-rings that are in the Rotor Head Block that the
Spindle goes though. There is one o-ring per side of the Rotor Head Block.

I have found a great replacement for the factory o-rings. These hold up much better and longer than the stock o-rings.

Dimension: 1/16 ID x 3/16 OD x 1/16

These are also listed as size: 003

Durometer = Hardness of rubber compounds

Durometer 70 – is the standard. Good replacement for the stock o-ring.

Durometer 90 – is very stiff. Good for aggressive flying and all out 3D. Not recommend for beginners.

 

 

Parts that are the same on the Genius CP and the Mini CP:

  • Servos – But the servo arms are different. See pictures below.
  • Swashplate
  • Tail boom – The GCP tail boom says Geniuns CP and the MCP tail boom says Mini CP
  • Main Shaft
  • Frame Bearings
  • Rotor Head Set – There are two different part numbers for the Genius CP and Mini CP Rotor Head Set. I don’t know what the difference is
    if any between the two. I am using the Genius CP Rotor Head Set on my Mini CP.

 

Parts that are different between the Genius CP and the Mini CP:

  • RX
  • Frame – Also the MCP has seperate landing gear.
  • Main Gear
  • Canopy
  • Servo Holder
  • Tail Blade
  • Main Motor
  • Ball Linkage Set
  • Battery
  • Main Blade- The Mini CP blades are .5mm slimmer and about .1gm lighter than the Genius CP blades. Also the MCP blades don’t have the yellow color on the tips like the Genius CP do.

 

Final Note:

GCP = Genius CP
MCP= Mini CP

Just found this out after placing my order to convert my GCP to the MCP.
The GCP servo arms are different than the MCP servo arms.
The GCP servo arm is straight, the MCP servo arm has a bend in it (see picture).

I was planning on using my GCP servos on the MCP.
Those of you that are converting your GCP to the MCP it looks like
you may have to get the MCP servos also.

 

 

 

 

 

 

Walkera Mini CP – Complete Overview

 

 

 

 

 

 

 

“My text, pictures and videos are Copyright 2009 – 2017 Tom Zadar”