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Exploded Views of Walkera Dragonfly Helicopters:

Something taken apart and you do not know anymore how to put it together ?
Look it up in the detailed exploded views of your Walkera Dragonfly Helicopter.


The new HM4#1 Rotorhead design




HM036 Upgrade
Detailed HM036 Aluminium RotorHead Upgrade Exploded View (48KB)
and Aluminium Tail Upgrade Exploded View (48KB)

A detailed exploded view of the HM036 Aluminium RotorHead Upgrade A detailed exploded view of the HM036 Aluminium Tail Upgrade



HM004
Detailed HM004 Exploded View (184KB)

A detailed exploded view of the Dragonfly HM004 / DF04



HM022E
Detailed HM22E Exploded View (221KB)

A detailed exploded view of the Dragonfly HM22e



HM076
Detailed HM076 Exploded View (234KB)

A detailed exploded view of the Dragonfly HM076



HM036
Detailed HM036 Exploded View (521KB)

A detailed exploded view of the Dragonfly HM036




Walkera Dragonfly 04 (HM004)



Facts:

The Dragonfly HM004 weights about 300 gram.
Is a Fixed Pitch Helicopter, this implies that the helicopter's lift is created by controlling the motor speed of the main rotor. As such the blades are somewhat curved. A collective pitch helicopter controls the lift by changing the main rotor blades pitch.

The dragonfly has a 4 channel transmitter for controlling the dragonfly helicopter.

The Dragonfly 04 can reach speeds between 40-60Km/hour (not recommended when you want to keep it in one piece).

The dragonfly 04 has two servos for helicopter movements. One for moving forward and backward and one for moving sideways.
This is managed via the servolinks to the swashplate (see image).

Detailed image of the Dragonfly DF04 swashplate and connections.

Controlling the tail of the helicopter is done via a separate tail motor. The brown element on the motor is meant to reduce interferance created by the tailmotor itself. See picture below.

Detailed image of the Dragonfly DF04 tail.

The dragongly HM004 has a built in gyro in the receiver box (3 in 1 box). The gyro detects changes in possible spinning of the helicopter. These changes will be send to the mixer in which the gyro signals are mixed with the other steering signals. Deviations will be corrected by sending more or less power to the tail motor to compensate and to prevent uncontrolled spinning of the helicopter.


Practice

It is recommended to practice with the flight simulator to gain some feeling on the controls of the sticks of the transmitter. Pratice head-in flights is also a recommendation.
Note that this will never be the same as a true flight and to really learn flying helicopters you just have to try and learn.

An important tip: to prevent possible severe damage to your helicopter while learning, when you have the feeling it is going wrong, do not try to correct or compensate, always turn down the throttle immediately.


Ground Effect

When you're scooting around on the floor, you're in what's called Ground Effects. The wind from the main rotor is blowing on the floor, bouncing in all directions including up, and blowing your little heli to the point where you have precious little control.
Eventually you will be able to fly here too, but this is not the place to learn.

Hover

First you need to learn to hover with your helicopter in a controlled way. This is done at a height of 3-4 feet from the ground. At this height there is no ground effect anymore, and is best to learn.


Tail-in Hover

Start with the tail of the helicopter pointed to you. This is called tail in. This is the easiest way to fly your helicopter as the control of your sticks match with your helicopter position. Try to keep the helicopter steady at a single place. When you can do this easily 2 or 3 times a complete battery charge, you're ready for a next step.

Left Side-Hover

Now practise the same but with the left side of the helicopter pointing to you.
When you control this, you can move to the next step.

Right Side-Hover

Same as previous step, but now the right side of the helicopter pointing to you.

Head-in Hover

If all went well sofar, your up to head-in hovering. This is the most complicated step as now all controls are completely reversed.

After this step you can try to take your first flights, first try a simple forward and backward flight.
And some sideway flights.
Note that it can take a while before you are at this step.

When you all control this well, you can try to fly at higher altitudes. This will feel again somewhat strange at first, but is easier to learn than the previous steps.




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