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Southwest Windpower Land Air X 12Volt 400Watt Wind turbine

Southwest Wind power Land AirX 12Volt 400Watt Wind Turbine


The AIR is by far the worldĂs number one selling small wind turbine. In late 2001 we introduced an entirely new level of technology which previously was only found in today's state-of-the-art megawatt-class wind turbines.


The AIR-X incorporates a new microprocessor based technology that results in increased performance, improved battery charging capability, greater reliability and the reduction of ˘flutter÷ noise from the machine.


The controller allows for peak-power tracking of the wind by optimizing the alternator's output on all points of the cubic curve and efficiently delivers the energy to the battery. The turbineĂs smart controller allows it to actually control blade rotation speed thus eliminating the buzzing noise commonly found with most small wind turbines.


Much Lower Noise: Previous AIR wind modules relied on their aero-elastic blade design for protection in high winds. This caused a loud flutter noise in winds above 35 mph (16 m/s). AIR-XĂs circuit monitors the wind speed and electronically slows the blades as it reaches its rated output preventing it from going into flutter. This results in a much quieter wind turbine. In high winds, the AIR-X will continue to produce power at a reduced level until the wind decreases, at which point maximum potential output will resume.


Improved battery charging: Previous AIR designs required 300-400 amp hour battery banks so the trickle charge of the wind turbine could be adequately absorbed. The AIR-XĂs charge controller periodically stops charging, reads the battery voltage, compares it to the voltage setting and if the battery is charged, it completely shuts off all current going to the battery. This function is performed within a few milliseconds. The closer the battery is to reaching its full state of charge, the more often the AIR-XĂs circuit repeats this action. This means any size battery bank from 25 to 25,000 amp hours or higher can be charged safely. When the battery has reached its charged state, the AIR-X will slow to an almost complete stop. Only when the battery has dropped below its voltage set point will it startup and resume charging.




  • Carbon Fiber Composite Blades
  • Aircraft quality aluminum alloy castings
  • Exclusive Brush-less neodymium cubic curve alternator
  • Sophisticated internal battery charge regulator
  • Maintenance-free - Only two moving parts
  • USA engineering
  • Exclusive Auto-brake-feature that slows the AIR to a silent spin when the batteries are charged thus extending bearing life and reducing noise.

Where and how the Air-X Wind Module is used


  • Common applications for the AIR-X
  • Remote Cabins
  • Telecommunication Towers
  • The Developing World
  • Monitoring Stations
  • The AIR-X is an ideal product for the person that needs a little power for basic appliances such as TV, radio and a few lights.



  • Unprecedented 3 Year Warranty

Technical Specifications


Rotor Diameter 1.15 m
Kilowatt hours/ month 38 Kwh @ 5.4 m/s
Blades 3 Carbon fiber composite
Start- up Wind Speed 3.6 m/s
Survival Wind Speed 49.2 m/s
Voltage 12, 24, 34 and 48V
Rated Power 400watts @12.5 m/s
Turbine Controller Microprocessor- based smart internal regulator with peak power tracking
Over Speed Protection Electronic torque control
Mount OD 48 mm
Body Cast Aluminium
Shipping Dimensions 686 x 38 x 228 mm - 7.7 kg
Weight 5.85 kg

Downloads and manuals


This is an archive page for information purposes only.
  • Model: Air X 12V Land
  • Shipping Weight: 5.85kg
  • Manufacturer:
    Southwest Windpower

This product was added to our catalog on Wednesday 10 January, 2007.