Aeronautica Windpower, LLC

- Model 500kW Services - Wind Turbine - 47m Rotor


In an age of King-sized wind turbines designed for wide open spaces or off shore, Aeronautica Windpower is proud to introduce a 500 kW turbine specifically aimed at countries or local governments favoring distributed generated wind power incentivized to be capped at a specific nameplate level for maximum Returns On Investment (ROI). The AW 500 is perfect turbine for your application.

Aeronautica takes great pride in manufacturing a quality product that is designed to last the test of time. In addition, being American made, Aeronautica is able to provide financing options to aid your projects construction/manufacturing costs, financing guarantees and insurance products backed by the US government. 

Aeronautica 750kW wind turbines are built according to strict IEC 61400 guidelines in our ISO 9001 rated factory to insure the highest degree of quality for a long service life. The Internet-ready SCADA system provides remote access and viewing from remote locations. Our time-tested gearbox isolation system absorbs shocks with ease, adding to long term durability. These turbines are ultra-quiet and highly transportable to reach areas otherwise inaccessible to larger machines. 

With its low profile, ultra-low noise signature, and highly efficient output, our 500's provide the perfect balance between economic output and acceptable size. Backed by our licensor, Norwin A/S, Aeronautica is poised to help your project reach its maximum potential.


  • 3 blades, upwind orientation
  • Fiberglass reinforced polyester


  • Power regulation: Active Stall Regulation (ASR)
  • Rotor size: 47m diameter (154')
  • Rotor speed: 25.3 rpm nominal
  • nominal Swept area: 1735 m2 (9,197 ft2)
  • Tilt angle: 4o
  • Coning angle: 3o Forward
  • Blades length: 21.0 m
  • Tip speed: 62-63 m/s (139-141 mph) at full load
  • Pitch angle: ASR
  • Pitch bearings: Slew ring (4-point ball bearings)
  • Air brake, normal: Pitch to -20o, actuated by the ASR System
  • Air brake, emergency: Pitch to -85o fail safe, activated by accumulators in the hub
  • Nominal Pitch Speed: 7.5o /sec
  • Mechanical brake: A fail-safe type disk brake
  • Brake torque: 1.8 times of nominal torque (approx.)
  • RPM max. value: 1600 (50Hz) / 1920 (60 Hz), on high-speed shaft


  • Nominal Electric Power: 200/500kW (dual wound)
  • Generator: Closed, asynchronous induction, 4/6 pole DW, IP54 or 55
  • Generator speed: 1000/1500 (50 Hz) / 1200/1800 (60 Hz) rpm at sync. speed
  • Loss in generator: Approx. 3% at full load
  • Generator cut-in: Thyristor controlled gradual cut-in
  • Grid connection: 690V
  • Connection Relay: SEL 547 Protective Relay (standard)


  • Yaw motors: 4 pcs. w/electrical brakes built in
  • Yaw brakes: 4 pcs. disc hydraulic brakes
  • Yaw bearing: Slew ring (4-point ball bearings)
  • Cut-in wind speed: 3m/s (6.7 mph), based on 10 min average
  • Cut-out wind speed: 25 m/s (56 mph), based on 2 min average
  • Survival Speed: 70 m/s (157 mph), (based on 50 year extreme)
  • Controller: Mita-Teknik
  • Op. Temp. Range: -30oC to +55oC (Very Low and Very High Temp options available)
  • Noise: 100 dBA Sound Power (at Nacelle)

Monopole Tower

  • Conical Steel, White: 50, 55, and 65m hub heights
  • Nacelle Access: Interior tower ladder through locked door
  • Surface Treatment: In accordance with ISO 12944
  • Laser inspected flanges, ultrasonic inspection of raw materials/welds

SCADA System

  • local and remote surveillance and operation

Safety Features

  • Induction generator has inherent anti-islanding
  • Fail-safe hydraulic disk brake
  • Grid monitoring for shutdown and operational performance
  • Fall protection ladder system
  • Lightning protection

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