Australia develops most environmentally friendly Helicopter

Australia is making a new history in aviation by developing affordable environmentally friendly helicopters.

As we know it Helicopters are handy little vehicles, they can hover and they can land in difficult to reach places and in congested areas. However there are a lot of disadvantages with current helicopter design.

They are noisy, and they are enormous gas guzzlers (a Bell 206 L4 helicopter travels just 1.47 km per litre - a family car travels 10-13kms per litre.) When their tail rotors fail the chopper goes out of control usually resulting in a crash landing. They're complex to control, extensive training is required. It is easier to learn to fly an aeroplane than a helicopter. Helicopters vibrate. An unadjusted helicopter can easily vibrate so much that it will shake itself apart.

Coaxial rotor helicopters can solve a lot of these problems but up till now they've been so expensive and technical that only the military has been able to afford them. Coaxial rotors are a pair of rotors turning in opposite directions, but mounted on a mast, with the same axis of rotation.

The Co-axial counter rotating helicopter offers considerable advantages over traditional models:

The absence of a tail rotor with the inclusion of a coaxial main rotor makes these craft more stable, more manoeuvrable, quieter, safer and provides a better power to weight ratio. The rotor system has greater lift and is much more efficient than traditional helicopters.

Technological advances and a lot of research and development have allowed the Wieland Helicopter Company to build a coaxial counter rotating helicopter that is competitive in the civilian market. Running costs, particularly with the electric motor version, are significantly lower than traditional helicopters.

Since the WHT range of helicopters are much easier to control and to fly, pilot training is much simpler and therefore takes a lot less time and money to complete.

The electric version of the helicopter will be powered by batteries that run an electric motor to turn the co-axial rotors

http://www.wielandhelitech.com