On 6 Channel RC Helicopters, you get a radio controlled model which have the main blades which can change their pitch angle. Basically, to see this you put

your rc helicopter on a table and look at the tip end of the main blades, the chordline of the blade can be tilted through a range of angles by the servos.

In this sense, the rotor disk of a heli is a bit like a variable-pitch prop on an airplane. If your helicopter is hovering in the air, and you want to make it climb straight

up in the air, you just increase the pitch of the main blades and turn up the throttle which means the helicopter can overcome the drag which increases and the blades

keep turning at the same rotation speed before the throttle was increased and the helicopter will rise

Overall the more you increase the pitch of the blades, the more the lift given to the rc helicopter. At high throttle the engine puts out more power, but there is a corresponding increase in the load on the engine due to increased main rotor blade pitch, and so the engine stays at the same RPM’s.) The general increase in pitch means that the helicopter will climb and is called collective control.

On a 4 channel rc helicopter, the pitch angle of the blades is fixed in places but as we said above, the 6 channel helicopters blades can be changed in pitch.

Calibrating RC Helicopters

When calibrating rc helicopters, the controller needs to be set properly otherwise it will not calibrate properly so the following settings need to be
set on the controller

1. the left stick needs to be all the way down
2. the left vertical trim needs to be all the way down
3. The rev switches, both the bottom front right on your controlled need to be down put to DOWN, UP, DOWN, UP in that order starting from the left and then the right
4. If you rc helicopter is a 6 inch model then the idle switch which is found on the top left of the controller is set to the off position

Once these settings have been put in place, then turn on the controller and then you should connect the battery to the rc helicopter. You should find a red light on the
Receiver will flash a couple of times before turning green

If you complete all these settings and the calibration is still not set, then complete the following checks

1. The rc helicopter battery is fully charged
2. The same for the controller batteries
3. The frequency plug is inserted into the receiver properly
4. The same for the controller
5. Both the frequency and receiver number matches both
6. All the buttons on the first section above are correct and not just set half way. You can check this by turning them in the opposite direction and then back again
7. The controllers Ariel has been fully extended

If after all these checks it still does not work, contact the supplier

This tiny RC Helicopter is the size of the palm of the hand and a fantastic piece of engineering. At an incredible 18cm, this is one of smallest RC Helicopters on the market and controlled by a Mode 2, 2 Channel Infra Red Controller and has gone down a storm by all so grab one this Christmas before everywhere runs out. They are made from a soft form which does not tear when crashing, this little guy is very good fun. A charge of 15-30 minutes gives you a flight time of around 5-10 minutes. What is great is the flashing blue LED so lights up brilliantly in the dark.

SPECIFICATIONS:
Size: 18×4x7.2cm
Required to use: 8 x AA batteries
Charge Time: 15 - 30 minutes
Flight Time: 5 - 10 minutes
Control Distance: 10 Meters

The Skyshadow is the easiest to fly of all the RC Helicopters available with its twin blades and fully functional radio contoller so do remember not to confuse these with the helicopter above which lets you control height but needs a weight to allow it to move forward.

For more advanced RC Helicopters then see the other models below, but if you want a machine which will just let you go up and and forward and backwards then this is for you.

Specifications:

- Weight: 1270g
- 3 electric motors
- 3.7v 550mAh Li-Battery included
- Width: 300mm
- Length: 450mm

Features:

- Easy to fly and full 3-D flight
- Revolutionary co-axial rotor technology
- Completely stable in flight
- 3 Channel radio control
- Flight range up to 60ft (20m)

Battery Requirements: 8X “AA” for remote control (not included)