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Little tips about building your own RC helicopter


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Flying RC helicopter is really very exhilarating. Their versatility gives a RC pilot a complete access to the three-dimensional space in such a way that no other machines can! I have played RC helicopter for more than one year but still find that I have just learnt a few tricks that it can perform.

There are generally two micro-helicopters ( indoor ) in the RC market. I have already planned to buy one of them as they can fly inside the living room and even take off on ours hand. Unlike those operated by gas, these electric helicopters are very clean and give out no terrible noise at all. In one nightfall, I visited a web site, which is about how to make a hand made RC helicopter. I was totally impressed and started designing my own helicopter. Here is my helicopter:

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The plan of the helicopter had finally been completed. It is not very well drew. The current plan available is only for the fixed pitch design. Please click the above photo for the plan.

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Here is the progress of my work:

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Several weeks after completing the first model as I describe above, I start to turn my view on a flybarless collective pitch rotor head. The reason for this modification is very simple. Just to get more stability especially during descending. The tail rotor parts from a Concept EP can be converted into a collective pitch rotor head for my helicopter. However, The tail rotor hub is a little bit heavy and big in size. Therefore, I decided to made one from fiberglass circuit board. Just click the photo for the flybarless collective pitch modification I.

This first attempt was actually not success due to the lack of tester damper. Worse was to come, the swasplate came apart during a flight test as the rotor disk is too unstable. I overlook its importance to the cyclic respond at the very beginning and it was doom to failure. Here is my second attempt: (click the photo below for details)

        

Newly Added :

I Bought a Hornet CP upgrade weeks ago for my helicopter but never got the time to build it. Also, I want to control the helicopter by my JR3810 Tx which has no 90-degree 3-servo CCPM. Therefore, the servo arrangement must be changed in order to use the 120-degree 3-servo CCPM available. BTW, just bought a Hacker B20-31s for the hornet CP rotor system. How this combination works....coming soon!

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Newly Added :     

There was a time many people gave out their tries on CD-Rom motor modification. Some with great result while some fail completely. I finally join the groups trying these tiny brushless motor for hobby use. To me, the power of these brushless motor is really amazing when compare with those bulky brushed speed 300 motor. Just click the photo below for more information:

Newly Added :

Two new pages had just been uploaded. One is about making your own blade while the other one is about Lithium cells. Also, a circuit diagram had been added to the page "electronic components"

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Have you ever thought about making an airborne video system. Yes, It is also possible for an indoor helicopter. Please click here for details.

Here is a photo gallery page about my helicopter and some of its technical specifications.

 Just click the helicopter to visit my video page!

If you know nothing about R/C helicopter, here is the first step leading you to understand it more.

Here

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For those who love Cantonese songs:

Here is a really great song which is composed, written, and sung by a talented  youngster named Wilson Lee.   You will surely enjoy it!

Here is one more song from Wilson.

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Best link:

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  • It is a web site about electric RC helicopter--- eheli.at
  • If you want to know more about RC helicopter, here is an article about helicopter aerodynamic written by Colin Mill.
  • Here is an online supplier which allows you to buy almost all the materials for your construction of your own helicopter---WES Technik

  • Are you from Hong Kong, here is a good Hong Kong web site---HK AVIATION.COM
  • Are you a curious guy? It is a site telling you whatever you want to know---How Stuff works
  • A free simulator that you can download from the internet---FMS 2.0 Beta 7  ( it is quite easy to construct an interface cable by yourself!)

  • A big RC shop
--- for all your RC hobby need
  • Want to take some challenges, how about building a helicopter using the IR gear from uIR Designs

  • Want to enjoy micro helicopter in an easier way? Buy a commercial one from this friendly online  micro helicopter store then --- E-Flight

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Please feel free to contact me if you encounter any problems or if you would like to give me some advice.

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                                                                                                                                                  Ben Hui - web master    2003

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