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Specifications:
- 100% brand new RC Helicopter Blades
- These RC Helicopter Blades are made of high quality material
- Durable and solid RC Helicopter Blades
- Mystery 150mm wooden RC Heli Parts
- This pair of 150mm wooden RC Heli Blades are specific for Walkera 4G3 series rc helicopter
- Size: 150mm/5.9in (L)
- Material: Wood
- Color: White
Details:
- This pair of wooden RC Helicopter Blades is specific for Walkera 4G3 series rc helicopter. A durable and solid item
- Mystery 150mm wooden blades. The RC Heli Parts are made of durable and high quality, which are durable and lasting with long time use
- More details for these blades. With the upgrade function, your RC helicopter will function pretty better, so you can enjoy the flying time to the most
Size in Detail:
How to Make Homemade RC Helicopters:
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:
Instructions:
- 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.
- Making the main body
- The material that I use to make the main body of the helicopter would make you feel surprise. It is the circuit board ( after removing the copper layer ) that purchased from electronic shops. It is made of a kind of fiber which gives abnormal strength to it
- Would you think it is just too simple? Well, it is really a very simple design as the tail rotor is powered by a separate motor. This eliminates the needs not to construct a complicated power transfer unit from the main motor to the tail. The tail boom is simply fixed on the main body by 2 screws together with some epoxy adhesive
- Make sure that the aluminum ball placed in the rod end can be moved freely. 2 holes were drilled on the plastic spacer in order to house two screws that used to hold the ball linkage
- In my design, the swashplate is fixed on the main shaft. This is simply done by applying some glue between the aluminum ball and the shaft
- My instructions are too confusing? Here is my draft of the swashplate which might help you. I still find that my design is a little bit too complex. If you have a better design, please let me know!
- For the rotor head, I choose the same material as the main body - the circuit board. First of all, I have to claim that the rotor head must be sturdy enough to withstand any vibration or it could be very dangerous.The control system I used here is the Hiller system. In this simple control system, the cyclic controls are transmitted from the servos to the flybar only and the main blade cyclic pitch is controlled by the flybar tilt only
- There is a metal bar ironed perpendicularly to the flybar. It holds the metal ball of the ball link in position. Here is how the ball link is made
- The rob ends are shortened and a metal bar is used to connected them together. the metal bar should be inserted deep into the rob ends and fixed with epoxy adhesive
- In addition to the ball link, an "H" shaped anti-rotating unit is a must for the control system. It helps to keep the ball link in position. The materials needed are showed in the above photo.(19)
- In order to stop the lower part of the swashplate from moving, an anti-rotation unit is also needed here. It is simple a small board with two pins inserted on it
- Here is the measurement of the tail blade. It can be shaped easily from a 2mm thick balsa. the tail blades make an angle of ~9°on the blade holder
- The photo shows all the things that the tail part consists. The two balsa blades are hold by a hardwood holder which helps to give a fixed tail pitch. It is then secured on the gearwheel by 2 screws. The motor is simply glued on the tail boom by epoxy adhesive and the tail shaft holding tube with the same way on the motor.The tail blade is made of balsa. They are covered with heat shrink tube in order to reduce the friction between the blade and the air.The pitch and the weight of the two blades must be exactly the same. Tests must be performed to ensure that no vibration occur
- Only two servos are used in my design. One is for the elevator and the other one is for aileron. In my design, the aileron servo is installed between the motor and the main shift holding tube. In this way, the tube has made use of the sturdy plastic case of the servo as one of its supporting medium
- This arrangement gives extra strength to the main shift holding tube as one side of the servo is glued to the motor while the other side is glued to the tube. However, the mobility of the servo as well as the motor is lost
- In a fixed pitch design, only 2 servos are needed.A computerized Tx is needed as the the tail control must be mixed with the throttle control. For a Piccolo micro helicopter, this task is performed by the Piccoboard. For my design, this is done by the function "Revo-Mixing" in the Tx
- now you can play with your home made heli.... enjoy it
Package Included:
- 1 x Pair of MYSTERY 150mm Wooden Blades for Walkera 4G3 Series Rc Helicopter
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Murat Moukhamdjanov
from ()
Bought this item on
09-23-2009- Other Thoughts: Finally Had The Right Size replacement Blades. If You Fly The Helicopter, You Are Bound To Crash And Loose Blades. here Are The Best replacements.
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Keegan Barrett
from ()
Bought this item on
05-12-2010- Other Thoughts: great product with great price!
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Deanna Wiseman
from ()
Bought this item on
03-17-2010- Other Thoughts: Out of luck; breaking a blade at a crucial time? Fast delivery, good price and back in the air. <br/>Super service!
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Michelle Barker
from ()
Bought this item on
11-12-2009- Other Thoughts: Great price, and best of all, they are COMPATIBLE WITH MACY'S PROTOCOL P-SERIES HELI!
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DnM Imports
from ()
Bought this item on
07-23-2009- Other Thoughts: Well, i am a model helicopter lover, but the truth is all these items are so expensive to me. So i have set up one by myself. This site was where i got the blades. It turns out it is very good, and the most important thing is it is cheap. A high performance price ratio item.
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- Do all helicopter blades spin the same way or do they rotate in opposite directions?
There are many different configurations of helicopter blades and theybdon't all rotate in the same direction.
Also there are helicopters , particularly military ones that have a rotor at each end of a long body.
There are also many helicopters with rotors one on top of each other rotating in opposite directions (Contra-rotating)
- Could someone explain construction and working of helicopter blades?
Frank Piaseki used steel tubing, spruce wood, birch plywood and fabric to construct the rotor blades of his PV-2. Today, almost all military and civilian rotor blades are made from polymer composites. Blades are designed with specific geometry that adapts them to the varying conditions of flight. Cross-section shapes of most rotor blades are not the same throughout the span. Shapes are varied along the blade radius to take advantage of the particular airspeed range experienced at each point on the blade, and to help balance the load between the root and tip. The blade may be built with a twist, so an airfoil section near the root has a larger pitch angle than a section near the tip. Without polymer composites, the complex airfoils of today's rotorcraft would likely not be possible.
- Do the blades on a helicopter spin clock wise or counter clock-wise?
It depends on the make and model of the helicopter. In general, American made helicopters spin counter-clockwise when looked at from above (it's an arbitrary convention, but we usually talk about them as if viewed from above, not the ground). European and Russian helicopters typically spin clockwise when viewed from above. Helicopters with two main rotors have each one spin in opposite directions so there is no need for a tail rotor to provide antitorque.
There is no advantage for the main rotor to spin one way or the other. It's just the convention of the manufacturers.
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