What do I need for full AP clasic heli?



I was thinking of building a ArduCopter based quad, but I realized that I have an unbuild HK 500CMT in my closet...


This is the order I placed at hobbyking about a year ago:

HK500CMTHK-500CMT 3D Electric Helicopter Kit (incl. *JIT-Item (this item takes 3-5 days to dispatch)1Reserved
TY500H-1700Turnigy Typhoon 500H Heli Motor 1800kv (5001Reserved
KF-100ATURNIGY K-Force 100A Brushless ESC1Reserved
CFT-500CF Tail Boom for Align T-Rex and HK-500 Heli1Reserved
GT500-129HK-500GT Main Gear (Align part # H50018)1Reserved
GT500-102HK-500GT Metal Main Rotor Grip Set (Align pa1Reserved
GT500-137HK-500GT Feathering Shaft (Align part # H5005Reserved
GT500-109HK-500GT Stabilizer Bar (Align part # H500103Reserved
GT500-142HK-500GT Tail Boom (Align part # H50040)3Reserved
GT500-061003HK-500GT Ball Bearing 10 x 6 x 3mm (4pcs/set1Reserved
GT500-210HK-500GT Stabilizer Blade (Align part # H5002Reserved
GT500-135HK-500GT Tail Blade (Align part # H50035)2Reserved
GT500-061204HK-500GT Ball Bearing 12 x 6 x 4mm (Align pa1Reserved
GT500-081605HK-500GT Ball Bearing 16 x 8 x 5mm (Align pa1Reserved
GT500-040904HK-500GT Ball Bearing 9 x 4 x 4mm (Align par1Reserved
GT500-139HK-500GT Landing Skid (Align part # H50122)1Reserved
GT500-151HK-500GT Linkage Ball1Reserved
GT500-051204HK-500GT Thrust Bearing 12 x 5 x 4mm (Align1Reserved
GT500-138HK-500GT Main Shaft (Align part # H50011)3Reserved
GT500-101412HK-500GT One-way Bearing (Align part # H50021Reserved
FPGY520Futaba GY520 Gyro1Reserved
CP20012RX4T900MHZ 200mW Tx/Rx & 1/3-inch CCD Camera PAL1Reserved
BOX-639Extra Size Cardboard Box and Packing 639g




I also have an unused Futaba 10CG TX with an Futaba R6014HS RX. 2,4GHz.

I bougt on the above order a Futaba GY520 AVCS rate Gyro.

Batteries are two ABF 6S1P 22,2V 2200mAh. I might chose to have them in parralell to increase flight time.


I know that I need servos. I would rather buy expensive quality servos straight away, then using some half descent ones that I cannot have 100% faith in...


For autopilot, I was thinking of using:

APM 2.0 https://store.diydrones.com/APM_2_0_Kit_p/br-ardupilotmega-03.htm

Using an external GPS https://store.diydrones.com/MediaTek_MT3329_GPS_10Hz_Adapter_Basic_p/mt3329-02.htm mounted on the tail boom or other place to give a best possible gps signal.

C5883L - Triple Axis Magnetometer  mounted on the tail boom https://store.diydrones.com/HMC5883L_Triple_Axis_Magnetometer_p/br-hmc5883-01.htm (Do I need this one due to the Invensense MPU-6000 sensor?)

MB1260 XL-MaxSonar-EZL0 High Performance Ultrasonic Range Finder https://store.diydrones.com/MB1260_XL_MaxSonar_EZL0_p/ac-0004-16.htm to help during landing and low level flight.


I would also like to be able to command the heli while it is flying. My understanding is that I need something like this:

Xbee Telemetry Kit https://store.diydrones.com/Xbee_Telemetry_kit_p/kt-telemetry-xbee.htm

This will take care of communication between a laptop and the heli, feeding new comands to the autopilot?


I would also like to add several cameras, but that is quite likely to happen at a later stage. I need to get this bird flying first :)

APM 2.0 have support for gimbal mounted cameras as I understand, and this is a feature I would like to use later on :)


Do I need to order a flybarless rotor head?

Any other parts that are required, or will help me greatly?


So far I am looking at around 300$, so that is no problem. I just want to make it work the first time around :)


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  • Looks like you have a reasonable amount of spares, so that's always good.  The only thing I think you're missing is servos.  And you'll have to figure out a way to mount the APM.

    As for the APM2, yes, you could put the GPS remote on the tail. I'm going to try and get the built-in GPS working on a 450 soon.  It might work.  We don't really know yet.  The mag... that is a big question mark because it's built in and I'm not sure if you can do anything about it (I don't think you can use the external mag).  The battery cabling will be a big issue.

    You don't actually need an external gyro anymore.  And you may not *need* the sonar.

    No, you don't need a flybarless head.  I have a FB on my 600, and it flies beautifully.

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