2012年5月18日 星期五

Walkera Mini CP helicopter - Devo 7 TX.

Walkera Mini CP helicopter - Devo 7 TX.

I have finished building the Walkera 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). 

I brought the spare part of walkera from hobbyhot.com



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.





Transmitter Settings: These are in my sticky thread.

http://www.rcgroups.com/forums/showthread.php?t=1325037





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



How to remove the main gear:


http://www.rcgroups.com/forums/showp...postcount=2531

http://www.rcgroups.com/forums/showp...postcount=2533


How to fix the coil on a Minicp RX(WOWS SILiCONE DOES NOT WoRK!) 


http://www.rcgroups.com/forums/showthread.php?t=1624581


There are a few mini CP mods that many people think should be done out of the box:


http://www.rcgroups.com/forums/showp...8&postcount=10


mini CP servo arm 90 degree issue


http://helifreak.com/showthread.php?t=388603


Mini-CP short flight time 


http://helifreak.com/showthread.php?t=385328


Settings for the mini's RX Ail/Ele gyro screw


http://www.rcgroups.com/forums/showp...&postcount=101





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. 

See these posts also.


http://www.rcgroups.com/forums/showp...postcount=2342

2012年5月10日 星期四

Walkera New Devention Devo 12 transmitter first impression

Got a new toy in our office today. The new walkera Devention Devo12 12ch radio with LCD touch screen display. Very interesting as this is a high end radio from Walkera. Loaded with features like oversize color LCD display with backlight, 60 model memory, USB firmware update, programs for helicopter, plane and gilder, LIPO battery with charger, wireless data transfer, the list just goes on and on. These are only some of the features I can think of now as I am still trying to find out more regarding this radio….

The packaging look very nice as everything is housed inside the included aluminum transmitter case. Included in the package is LIPO tx battery, wall charger, 12ch 2.4G receiver, neck strap, etc. The first thing I notice is the screen is very big. Most items are display with large icon with name below it, btw: can choose between English and Chinese manual now, hope they add different language in the future. There are 2 timers on the main page which I think is very handy. When go into the the manual I notice I need to press it quite hard. Personally prefer softer input but it maybe safer as you will not press it accidently during operation. It is a little better after I remove the screen protective film but still need to press it hard compare to other touch screen radio. The manual is really easy to understand almost everything was explained by the icon or graph already. Incase you have large fingers like me you can still use the buttons beside the screen to operate the manual. The stick movement is very smooth. After I took the back cover off I notice all sticks was support by ball bearing. Makes it very accurate and the feel is very nice. After using walkera 2801 radio in my 450 and 500 for over one year already without one single glitch, I am very confident this system should work flawlessly. Next thing is get it into my 500 and see how it goes. 

Like:
Large LCD touch screen
Selectable wall paper
Very smooth stick movement with ball bearing support
Hard case LIPO transmitter battery included
Included aluminum carrying case so everything fit nicely inside
The finishing and plastic used are sure top of the line
60 model memory

Dislike
Touch screen need to press hard
The size is quite big. Which could be little hard to hold for user with small hands, but there are rubber grip on both sides and the back so should not be a big issue
http://www.hobbyhot.com/Walkera-Devention-DEVO-10-24GHz-10ch-Telemetry-RC-Transmitter-Receiver-TS865.html

2012年4月17日 星期二

HOBBYWING XERUN SCT PRO Black 120A RC Brushless Motor ESC Speed Controller SL246



New Arrival! HOBBYWING XERUN SCT PRO Black 120A RC Brushless Motor ESC Speed Controller SL246


HOBBYWING XERUN SCT PRO Black 120A RC Brushless Motor ESC Speed Controller SL246
Available at www.hobbyhot.com - ship to worldwide
Available at www.hobbyhot.com - ship to worldwide

Specifications
Model: XERUN-SCT-PRO
Dimension: 53.5mm(L) x 36mm(W) x 36mm(H)
Cont. / Burst Current: 120A / 760A
Resistance: 0.0004 ohm
ESC-Speed-Controller-SL246.html>ESC-Speed-Controller-SL246.html>Motor Turns: (2S Lipo: KV<=6000) / (3S Lipo: KV<=4000) / (4S Lipo: KV<=3000)
ESC-Speed-Controller-SL246.html>ESC-Speed-Controller-SL246.html>Motor-ESC-Speed-Controller-SL246.html>ESC-Speed-Controller-SL246.html>Battery: 6-12 cells NiMH / NiCd or 2-4S Li-Po
BEC Output: 6V/3A Built-in BEC
Cooling Fan Working Voltage: Working under 6V
Net Weight: 99g
Suitable Model: 1/10 and 1/8 Scale Truggy or Buggy

Features
Suitable for 1/10 and 1/8 scale short course trucks and 1/8 scale buggies.

Compatible with sensored and sensorless brushless ESC-Speed-Controller-SL246.html>ESC-Speed-Controller-SL246.html>Motor-ESC-Speed-Controller-SL246.html>ESC-Speed-Controller-SL246.html>motors, with the best control feelings.

The built-in switching mode BEC has a powerful output to supply all electronic equipments even with 4S Lipo input.

Excellent start-up, acceleration and linearity.

Proportional ABS brake function with 5 steps of maximum brake force adjustment, 8 steps of drag-brake force adjustment and 4 steps of initial brake force adjustment. Also compatible with the mechanical disc-brake system.

Multiple protection features: Low voltage cut-off protection / Over-heat protection / Throttle signal loss protection / ESC-Speed-Controller-SL246.html>ESC-Speed-Controller-SL246.html>Motor blocked protection.

Easily programmed with only one button and compatible with pocket-sized program card (Optional equipment) and the advanced LCD Program Box (Optional equipment).

ESC-Speed-Controller-SL246.html>ESC firmware can be updated through an USB adapter on the LCD Program Box (Optional equipment).

Splash proof and dust proof.


New Arrival! HOBBYWING XERUN 3656SD KV4000 Sensored Motor & SCT PRO 120A ESC Combo ME205


HOBBYWING XERUN 3656SD KV4000 Sensored Motor & SCT PRO 120A ESC Combo ME205
Available at www.hobbyhot.com - ship to worldwide
Available at www.hobbyhot.com - ship to worldwide
ESC-Combo-ME205.html>ESC-Combo-ME205.html>Motor Specifications
Model: XERUN 3656SD KV4000 Sensored Brushless ESC-Combo-ME205.html>ESC-Combo-ME205.html>Motor
Rotational Speed:?4000 KV
ESC-Combo-ME205.html>ESC-Combo-ME205.html>Motor Dimensions (Diameter x Length): 36mm x 56mm
Shaft Dimensions (Diameter x Length): 5mm x 18.5mm
Input ESC-Combo-ME205.html>ESC-Combo-ME205.html>Motor-SCT-PRO-120A-ESC-Combo-ME205.html>ESC-Combo-ME205.html>Battery Types: NiCd/ Nimh/ Li-po ESC-Combo-ME205.html>ESC-Combo-ME205.html>Motor-SCT-PRO-120A-ESC-Combo-ME205.html>ESC-Combo-ME205.html>Battery
Recommend Model: RC Model 1/10 Car


ESC-Combo-ME205.html>ESC Specifications
Model: XERUN-SCT-PRO
Dimension: 53.5mm(L) x 36mm(W) x 36mm(H)
Cont. / Burst Current: 120A / 760A
Resistance: 0.0004 ohm
ESC-Combo-ME205.html>ESC-Combo-ME205.html>Motor Turns: (2S Lipo: KV<=6000) / (3S Lipo: KV<=4000) / (4S Lipo: KV<=3000)?
ESC-Combo-ME205.html>ESC-Combo-ME205.html>Motor-SCT-PRO-120A-ESC-Combo-ME205.html>ESC-Combo-ME205.html>Battery: 6-12 cells NiMH / NiCd or 2-4S Li-Po
BEC Output: 6V/3A Built-in BEC
Cooling Fan Working Voltage: Working under 6V
Net Weight: 99g
Suitable Model: 1/10 and 1/8 Scale Truggy?or Buggy


ESC-Combo-ME205.html>ESC Features
Suitable for 1/10 and 1/8 scale short course trucks and 1/8 scale buggies.

Compatible with sensored and sensorless brushless ESC-Combo-ME205.html>ESC-Combo-ME205.html>Motor-SCT-PRO-120A-ESC-Combo-ME205.html>ESC-Combo-ME205.html>motors, with the best control feelings.

The built-in switching mode BEC has a powerful output to supply all electronic equipments even with 4S Lipo input.

Excellent start-up, acceleration and linearity.

Proportional ABS brake function with 5 steps of maximum brake force adjustment, 8 steps of drag-brake force adjustment and 4 steps of initial brake force adjustment. Also compatible with the mechanical disc-brake system.

Multiple protection features: Low voltage cut-off protection /Over-heat protection / Throttle signal loss protection /?ESC-Combo-ME205.html>ESC-Combo-ME205.html>Motor blocked protection.

Easily programmed with only one button and compatible with pocket-sized program card (Optional equipment) and the advanced LCD Program Box (Optional equipment).

ESC-Combo-ME205.html>ESC firmware can be updated through an USB adapter on the?LCD Program Box (Optional equipment).

Splash proof and dust proof.


Program Card Features and Functions
The 2 IN 1 PROFESSIONAL PROGRAM BOX is a small device to set the programmable parameters of the brushless ESC-Combo-ME205.html>ESC, it works in the following 2 ways:
1. Working as an individual device to set the ESC-Combo-ME205.html>ESC, the value of each parameter is displayed on its own LCD screen.
2. Working as an USD adapter to link the ESC-Combo-ME205.html>ESC with a PC, and the user can update the firmware of the ESC-Combo-ME205.html>ESC or set the ESC-Combo-ME205.html>ESC by the special application software on PC.
 
Program Card Specifications
Dimensions 90mm x 51mm x 17mm
Power Supply DC 4.5V to 6.0V
Suitable ESC-Combo-ME205.html>ESC HOBBYWING / TEKMODEL
Programmable Items
The programmable item for the CAR ESC-Combo-ME205.html>ESC are:
1. Running Mode
2. Drag Brake Force
3. Low Voltage Cut-Off Threshold
4. Start Mode
5. Maximum Brake Force
6. Maximum Reverse Force
7. Initial Brake Force
8. Throttle Neutral Range
9. Timing
10. Over-Heat Protection
11. ESC-Combo-ME205.html>ESC-Combo-ME205.html>Motor Rotation
12. Lipo Cells



New Arrival! HOBBYWING XERUN 4274 2000KV Brushless Motor & EZRUN WP SC8 120A ESC Combo ME222


HOBBYWING XERUN 4274 2000KV Brushless Motor & EZRUN WP SC8 120A ESC Combo ME222
Available at www.hobbyhot.com - ship to worldwide
Available at www.hobbyhot.com - ship to worldwide
ESC-Combo-ME222.html>ESC-Combo-ME222.html>Motor Specification
Model: XERUN KV2000 Sensorless Brushless ESC-Combo-ME222.html>ESC-Combo-ME222.html>Motor
ESC-Combo-ME222.html>ESC-Combo-ME222.html>Motor Dimension (Dismeter x Length): 42mm x 74mm
Shaft Dimension: (Diameter x Length): 5mm x 19mm
Rotation Speed: 2000KV



ESC-Combo-ME222.html>ESC Specification
Model: EZRUN-WP-SC8
Dimension: 59.3mm(L) x 38.4mm(W) x 33.6mm(H)
Cont. / Burst Current: 120A / 760A
Resistance: 0.0004 ohm
Suitable Car:
1/10 SCT / Truggy / Buggy / Monster
1/8 SCT / Buggy (Includes TRAXXAS 1/10 Truggy and Buggy)
Suitable ESC-Combo-ME222.html>ESC-Combo-ME222.html>Motor: Sensorless Brushless ESC-Combo-ME222.html>ESC-Combo-ME222.html>Motors
Suitable ESC-Combo-ME222.html>ESC-Combo-ME222.html>Motor Turns:
2S Lipo: KV<=6000, 3S Lipo: KV<=4000, 4S Lipo: KV<=3000
ESC-Combo-ME222.html>ESC-Combo-ME222.html>Motor-EZRUN-WP-SC8-120A-ESC-Combo-ME222.html>ESC-Combo-ME222.html>Battery: 6-12 cells Ni-xx (NiMH / NiCd) or 2-4 cells (Li-Po)
BEC Output: 6V/3A (Switching mode built-in BEC)

Net Weight: 113g (with 12AWG 200mm *5 wires)

ESC-Combo-ME222.html>ESC Features
Completely water-proof and dust-proof. The ESC-Combo-ME222.html>ESC works properly even under water.
(Please remove the cooling fan when running car in water, and after running, please make the ESC-Combo-ME222.html>ESC clean and then dry it to avoid the oxidation of copper connectors)

Excellent start-up, acceleration and linearity features, suitable for truggy (especially short course trucks) and buggy.

The built-in switching mode BEC of EZRUN-SC8 ESC-Combo-ME222.html>ESC has a powerful output to supply all electronic equipments even with 4S Lipo Input.

Integrated and compact design, very suitable for trucks (especially short course trucks) and buggies.

There is a mounting stand for installing the ESC-Combo-ME222.html>ESC on chassis easily and firmly.

Proportional ABS brake function with 5 steps of maximum brake force adjustment, 8 steps of drag-brake force adjustment and 4 steps of initial brake force adjustment. Also compatible with the mechanical disc-brake system.

Multiple protection features: Low voltage cut-off protection / Over-heat protection / Throttle signal loss protection / ESC-Combo-ME222.html>ESC-Combo-ME222.html>Motor blocked protection.

Easily program with the SET button of the ESC-Combo-ME222.html>ESC, and also compatible with Pocket-sized Program Card (Optional Equipment) and the advanced LCD Program Box (Optional Equipment).

Special program port for connecting to the LED Program Card or the LCD Program Box. User needn`t unplug the Rx lead from receiver when programming the ESC-Combo-ME222.html>ESC.



Program Card Specification
Dimension (Length x Width x Height): 88mm x 58mm x 14mm

Program Card Features
- Running Mode
- Drag Brake Force
- Low Voltage Cut-Off Threshold
- Start Mode
- Maximum Brake Force
- Maximum Reverse Force
- Initial Brake Force
- Throttle Neutral Range
- Timing
- Over-Heat Protection
- ESC-Combo-ME222.html>ESC-Combo-ME222.html>Motor Rotation
- Lipo Cells



New Arrival! HOBBYWING XERUN Sensored 4274SD 1800KV Motor & 150A ESC + LCD Card Combo ME231


HOBBYWING XERUN Sensored 4274SD 1800KV Motor & 150A ESC + LCD Card Combo ME231
Available at www.hobbyhot.com - ship to worldwide
Available at www.hobbyhot.com - ship to worldwide
ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Motor Specifications
Model: XERUN 4274SD KV1800 Sensored Brushless ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Motor
Rotational Speed: 1800 KV
ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Motor Dimensions (Diameter x Length): 40mm x 74mm
Shaft Dimensions (Diameter x Length): 5mm x 18mm
Input ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Motor-150A-ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Battery Types: NiCd/ Nimh/ Li-po ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Motor-150A-ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Battery
Recommend Model: RC Model 1/8 Car


ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Motor Features
- High efficiency (>90%)
- New design with lighter weight but bigger torque
- Higher power than the competition, faster acceleration and highter top speed
- NMB precision ball bearings ensure longer life
- Neodymium agnets ensure high power output



ESC-LCD-Card-Combo-ME231.html>ESC Specification
Model: XERUN-150A
Dimension: 58mm(L) x 46.5mm(W) x 35mm(H)
Cont. / Burst Current: 150A / 950A
Resistance: 0.0002 ohm
Suitable ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Motor: Sensored and sensorless brushless ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Motor-150A-ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>motors

=>4.5T, KV<=3000 (Works with 4S Li-Po), =>6T, KV<=2400 (Works with 6S Li-Po)
ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Motor-150A-ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Battery: 6-18 cells NiMH or 2-6 cells Li-Po
BEC Output: 5.75V/3A Switch mode built-in BEC
Cooling Fan Working Voltage: 5V, max. 8V (The fan gets the power supply from the built-in BEC)
Suitable Model: 1/5, 1/8 on-road, off-road, monster, Super powerful applications


ESC-LCD-Card-Combo-ME231.html>ESC Features
Compatible with all sensorless brushless ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Motor-150A-ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>motors and most of sensored brushless ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Motor-150A-ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>motors such as LRP, SpeedPassion, Novak, Etc.

Seamlessly change to sensorless working mode when the sensor cable is broken.

Excellent start-up, acceleration and linearity features.

Built-in switch mode BEC has a powerful output to supply all the electronic equipments.

Firmware can be updated through an USB adapter on the advanced LCD Program Box (Optional equipment).

User programmable. Easily programmed with the "SET" button on the ESC-LCD-Card-Combo-ME231.html>ESC and also compatible with the digital LEDs Program Card and the advanced professional LCD Program Box.

3 running modes (Forward mode, Forward/Reverse mode, Rock Crawler mode).

4 steps of maximum reverse force adjustment.

Proportional ABS brake function with 4 steps of maximum brake force adjustment, 8 steps of drag-brake force adjustment and 4 steps of initial brake force adjustment.

9 start modes (Also called "Punch") from "very soft (Level 1)" to "very aggressive (Level 9)".

8 steps of timing adjustment to suitable for all brushless ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Motor-150A-ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>motors.

Multiple protection features: Low voltage cut-off protection / Over-heat protection / Throttle signal loss protection / ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Motor blocked protection.

Splash proof and dustproof.



Program Card Specifications
Dimensions 90mm x 51mm x 17mm
Power Supply DC 4.5V to 6.0V
Suitable ESC-LCD-Card-Combo-ME231.html>ESC HOBBYWING / TEKMODEL


Program Card Features and Functions
The 2 IN 1 PROFESSIONAL PROGRAM BOX is a small device to set the programmable parameters of the brushless ESC-LCD-Card-Combo-ME231.html>ESC, it works in the following 2 ways:

1. Working as an individual device to set the ESC-LCD-Card-Combo-ME231.html>ESC, the value of each parameter is displayed on its own LCD screen.
2. Working as an USD adapter to link the ESC-LCD-Card-Combo-ME231.html>ESC with a PC, and the user can update the firmware of the ESC-LCD-Card-Combo-ME231.html>ESC or set the ESC-LCD-Card-Combo-ME231.html>ESC by the special application software on PC.

Program Card Programmable Items
The programmable item for the CAR ESC-LCD-Card-Combo-ME231.html>ESC are:

1. Running Mode
2. Drag Brake Force
3. Low Voltage Cut-Off Threshold
4. Start Mode
5. Maximum Brake Force
6. Maximum Reverse Force
7. Initial Brake Force
8. Throttle Neutral Range
9. Timing
10. Over-Heat Protection
11. ESC-LCD-Card-Combo-ME231.html>ESC-LCD-Card-Combo-ME231.html>Motor Rotation
12. Lipo Cells


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Corona RS610II 6ch FM 72MHz RC Micro Receiver RV337 USD7.90 only
RC Model 100A Brushless Motor Speed Controller ESC SL019 USD20.90 only
RCS M2313 13g Metal Gear High Torque Micro Servo SS840 USD7.90 only
RCS 2260mAh 11.1V 25C LiPo Lithium Polymer Battery RB635 USD15.00 only
Walkera HM-5G4Q3-Z-11 Main Frame USD6.60 only
RCS Model F6-12M High Precision Thrust Bearing (6x12x4.5mm, 10pcs) CS340 USD9.90 only
HOBBY HOT 75mm Blue Aluminium Cooling Ship Rudder SO032 USD6.90 only
RCS Model Bearing Set for TEAM LOSI RC 8IGHT E RACE ROLLER BG129 USD18.90 only
HOBBY HOT Ship CNC 55mm Water Stabilizer Boat Trim Fin SO046 USD7.90 only
HOBBYWING Seaking 90A Brushless Water Cool ESC for Boat EC061 USD55.90 only
RCS Model FR166ZZ High Precision Bearing (4.762x9.525x3.175mm, 10pcs) CS404 USD6.90 only
MASTER AIRSCREW 6 x 4 Inch Pusher 3-Blade Series Propeller PM032 USD8.90 only
ZOP 2600mah 7.4v 25C LiPo Li-Polymer Battery RB097 USD13.70 only
Jeff Troy?�� Tame Cat EP Electric Plane Kit USD99.90 only
HobbyHot Marine 1200Kv Brushless Motor BL061/1200 USD50.90 only
RC Model Tx & Rx FM 35.190 MHz R/C Hobby Receiver & Transmitter Crystal CY512 USD3.90 only
HobbyHot 290mm Real Carbon Fiber Blades for Heli HB014 USD20.00 only
Walkera HM-5G4Q3-Z-01 Flybar Set USD4.30 only

2012年4月9日 星期一

Walkera V200D01 - Mini Review


From:
http://www.rcgroups.com/forums/showthread.php?t=1282125 
Walkera V200D01 Mini Review

Retail Price: $219.95
Main Rotor Diameter: 440mm
Weight: 268 grams (Battery Included)
Length: 432mm
Servos: 2x Walkera Micro WK-7.6-6
Transmitter: 4 Channel D/R WK-2403 2.4g
Receiver: RX-2437V 3 Axis Gyro
Battery: 2S 7.4v 1000mAh Lipo
Motors: Brushless WK-WST-21-003
ESC: WK-WST-20A-1
Manufacturer: Walkera
Available From: HobbyHot.com

INTRODUCTION
The fixed pitch helicopter offers advantages over the coaxial heli such as increased speed and agility, while maintaining the level of stability found in coaxials. The Walkera CB180D is a prime example of a fixed pitch single-rotor helicopter with great performance, sleek looks, and stability that rivals some coaxial platforms. Walkera took that up a notch with the CB180Z and now they take it up another notch with the V200D01. The V200D01 is one of the latest helicopters from Walkera. It evolved from the CB180 series by Walkera, but features a flybarless head, brushless motor and a 3-Axis gyro. The V200D01 can be purchased for around $200 - $225.

We all know that the Fixed Pitch Helicopter is better for beginners because of their easier setup and less complicated parts than the Collective Pitch Helis. Now the V200D01 has gone one step further, by removing the flybar from the Fixed Pitch heli, and adding a 3-Axis gyro to help you to stabilize the helicopter.

The flybar is a short thin metal rod placed on top of the helicopter. It is one a structure on the Rotor Head, usually attached with a paddle or weights on both ends. The flybar helps to stabilize the helicopter during flight. The heavier the paddle or weight and the longer the flybar, the more stable the helicopter can be. In other words, if you take away the flybar, the helicopter will become "unstable". However, this can be compensated by using a 3-Axis Gyro. The onboard RX-2437V controller makes the V200D01 perform just as if it were flying with a flybar.

Flybarless means less moving parts and that saves energy and enables you to fly 20-30% longer on each battery. Also, less parts means less repairing. You will have less parts to replace after a crash. Flybarless appears to be the future of RC Helicopters.

I flew the Walkera V200D01 both indoors and out, in both light and zero wind conditions both with and without gyro support. So, let's take a closer look at one of Walkera’s first flybarless attempts.

KIT CONTENTS 
As with most micro ready-to-fly aircraft, the V200D01’s box can also be used as a carrying case. After opening the box the inner plastic was revealed holding the heli and radio safely in place. This is basically two pieces of flexible plastic, molded to fit the helicopter and transmitter that Walkera sandwiches together and fits inside the outer box.
The kit comes with: a WK-2403 2.4GHz four channel transmitter, 1000mAh 7.4v lipo pack, lipo balancing charger with a wall power adapter, instruction manual, an extra set of tail rotor gears and an extra set of main blades.

The V200D01 is a sleek looking little bird. The plastic cowl is clean with a multicolored yellow, black, and white with red trim design. The frame is black plastic and the landing skids and tail boom are metal. The tail fins have a faux carbon fiber finish. Sitting atop the V200D01 is the orange or gold anodized aluminum rotor head assembly reminiscent of the CB180Q.

Overall I was impressed with the fit and finish of this helicopter. I did a complete once over checking screws and gears and I did not find any factory defects or missing parts. I did add some silicone lube to the tail gears and I decided to make sure the main blades were balanced. This is something I’d never done with any of the CB180 helicopters I’ve ever owned, but this being something new, I figured, why not.

As with most small-scale helicopters, it seems that most use a direct-drive tail rotor, with the tail motor positioned on the end of the boom and attached straight to the rotor. The V200D01, however, uses a shaft driven, variable pitch tail rotor. A variable pitch rotor constructed from two blade grips, a tail rotor hub, and a tail pitch slider which allows the blade pitch (and therefore the thrust of the rotor) to be controlled via a servo. Power is supplied to the tail rotor from the main motor by a shaft. This leads to plenty of tail authority with a slight reduction in performance as some energy is lost through the spinning shaft and gears, but I was very pleased with the V200D01’s performance.

A brushless motor?! With the success of the CB180Z, Walkera, thankfully, kept the brushless main motor. Flight times are well within what I would expect from any brushless heli and with plenty of power on-tap.

The V200D01 uses micro servos labeled as WK-7.6-6, the same servos used in the CB180 series of helicopters. The tail uses a WK-7601 servo that is slightly faster. As far as these servos go, I haven’t had any problems in the past and still have no complaints today. They’ve always worked as I expected and have survived quite a few crashes on my CB180’s and MadHawk 300’s.

The Walkera RX-2437V is a 3-Axis Gyro receiver. It’s basically a 4-channel signal output with a combination gyro that can be adjusted to meet the needs of the pilot. A 3-Axis Gyro allows it to sense X, Y and Z axis moments. That means that when the body is leaning forward, backward or rolling left or right, or the tail is drifting CW / CWW, it will constantly monitor any off-balances in all directions, then it will give signals to the servos to balance the helicopter. It works constantly unless you manually shut it off on the RX itself. The yellow casing is flexible plastic and offers slight protection from shock and the elements. Still, the open top make dirt and water contamination possible, so avoid flying in wet conditions that could cause electrical malfunctions.

The main rotors are fixed and unable to change their angle of attack. This heli, like other fixed pitch helis, relies on head speed, to generate lift. Spin the rotor faster, and the helicopter ascends. Reduce rotor speed, and the heli descends. The fixed-pitch rotor head on the V200D01 is all metal, with the exception of the swashplate linkages.

Does the transmitter look familiar? If you’ve purchased a Walkera helicopter in the past 6-12 months, you’ve held a similar transmitter in your hands. This is the WK-2403 from Walkera. It is a 4-channel 2.4GHz unit with a few standard features and an LCD display screen. This transmitter offers servo reversing and the option to change the throttle from the left to the right if you're so inclined. The WK-2403 adds a dual rate mode selection and a unique Height-Limit mode tailored to beginners. The Dual Rate switch limits the servo travel to 50% for more stable flight, while the Height Limit limits the throttle to 30-80%, which, in turn, limits the height of the helicopter. My sticks were well tensioned with this transmitter, but detailed instructions on adjusting the stick tension are included.

ASSEMBLY 
The V200D01 ships to your door fully assembled. However, just because it doesn’t require any building doesn’t mean it should be flown out of the box. Resist the urge to do so, and do a preliminary check of the aircraft. Put a Philips head screwdriver to every screw and make sure it is secured. Make sure the blades are secured in the blade grips, but not too tight or you’ll get some vibrations. Check the rotor head assembly; with the heli and radio powered on, the swashplate should be level with the throttle lowered and control sticks centered. Check that the pinion gear meshes well with the main gear by lightly pushing the main gear back and forth; you should feel a very small amount of play.

Walkera has included a two and three cell lipo charger/balancer with the V200D01. The GA005 balancing charger is designed for lipo batteries only and charges at 0.80A. Two and three cell balance plugs on the front of the GA005 serve as charge and balance inputs. The unit is powered by a 15v switching mode wall adaptor. A full charge takes around an hour to complete, which is confirmed when the blinking red led turns green.

FLYING 
I was a bit surprised to find that flying the V200D01 is very similar to the CB180D or MadHawk 300. Rumors are floating around that the V200D01 is tougher than a UFly which is tougher than a CB180Z. I haven’t flown the CB180Z or the UFly, so I cannot speak to those comparisons. Its small size coupled with the variable pitch tail make for a more hands-on flying experience. This heli will continue to travel in a given direction until you make a correction to its flight path. With the CB180D/Q I noticed a ‘bucking’ when going from forward flight to a stop. This does not happen with the V200D01. If you press the right stick forward it’s going to go forward even if you release the stick. You have to pull back slightly to get this heli to come to a stop…and it won’t buck nose up! I was able to achieve a hands free hover within minutes of my first flight as well. After a few battery packs, even a new pilot will discover the V200D01 is very manageable. On a charged battery, you can get upwards of 10 minutes of flying before you have to increase the throttle more and more just to keep it in the air. This is your clue to land, land very soon, like now.

The V200D01 is nimble enough to satisfy intermediate pilots and doesn’t seem to struggle in a slight breeze. I had no trouble maintaining forward flight into an estimated 3 to 5 mph wind. The V200D01 is well suited for indoor and calm-day flying only, but will still be strong enough to take into a light breeze. The TX range seems fine. I’ve had no issues with going out 100’ or more with no cutouts between the RX and TX. The V200D01 is a blast to fly, and can make some really quick passes in forward flight. The tail is ROCK SOLID too. You can spin this heli in circles, release the right stick and the V200D01 will stop on a dime! I would say that this helicopter is well suited for those that are tired of their MadHawk 300 or CB180D/Q but aren’t quite ready for the UFly or the HBFP V2. Don’t get me wrong the V200D01 can get away from you quickly, but I’ve been flying all morning with no crashes or baubles.

Is This For a Beginner?
This is a tricky question. Stepping into any single-rotor platform as a first heli can be a risk, but its less of a risk than going full collective. Although the fixed pitch V200D01 is somewhat stable as helicopters go, it's still a helicopter, and therefore inherently unstable. If you've had some simulator time and feel confident, I'd say go for it. If you've mastered a coaxial or the CB180D/Q, then this is definitely a next step option. If you've never flown anything that takes off and lands vertically, you might consider waiting on the V200D01.

CONCLUSION 
The Walkera V200D01 is an intermediate level fixed-pitch helicopter with great performance, durability, and looks. New pilots graduating from coaxials will find the V200D01 to be more than a handful, but an ideal next step for prior CB180D/Q pilots due to its stability, durability, and multiple setup options. More experienced pilots will enjoy the V200D01's fly-anywhere style, cool looks, and flybarless head. I’ll admit there are many other options out there for the price, but this is definitely a consideration. I’ve posted some pics below. Basically stock stuff you’ve all seen before. I hope to have some video up this weekend as well.

Pros:
· Multiple setup options make the V200D01 a good choice for beginner to intermediate pilots.
· Good run times (10+ minutes) with the included 7.4v 2s 1000mAh lipo pack.
· Durability and parts availability.
· 3-Axis Gyro allows for beginner and intermediate pilots to enjoy
· New 2403 TX allow for beginner setups to maintain stability

Cons:

· Parts Availability (but you can use most of the CB180Z parts in a pinch)
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