A new paradigm
in blade
technology

Onshore blades

Longer blades. More power. Lower cost of energy.

Onshore blades, with higher energy yields, simple transport and excellent performance in low wind areas.

The technology is GL tested in and certified in the Dynamic 49 blade.

GL System Certification

  • Longer, lighter rotor blades
  • Increased power generation from any turbine platform
  • Transportable in 2 separate sections
  • Greatly improved turbine profitability
  • Outstanding performance in low wind areas

On a per MW basis, the D49 is the lightest blade in the world.

"The D49 Blade Showcases many of Blade Dynamics'
proprietary technologies"
"The D49 Blade Showcases
many of Blade Dynamics'
proprietary technologies"
Theo Botha, Head of Sales

On a per MW basis, the D49 is the lightest blade in the world.

The D49

The most advanced wind turbine blade available.

Unique technology enables the Dynamic 49 to be the only low weight, high performance blade that can be transported in two sections and combined locally, reducing the cost of logistics and enabling onshore wind farms to be equipped with larger, more profitable rotors. The blade sets new standards for wind power generation from 2MW machines. Weighing only 6150kg, it is the lightest blade in itÕs class, with unmatched manufacturing accuracy, lightness, quality and durability. The D49 increases rotor size, boosting AEP and improving the yield of the turbine without any mechanical adjustments to the turbine.

Blade Dynamics has developed unique technology to address every important issue relating to large wind turbine blades and demonstrated the effectiveness of them with the GL certified D49 blade.

The D49

The D49 showcases and demonstrates many of Blade Dynamics' key technologies.

D49 Technical data

  • General
  • Rotor Diameter (appr) 100m
  • Rated Power (electric) 2,000kW
  • Rated Rotational Speed 15.7 rpm
  • Class
  • Type Class S
  • Average wind speed at hub height (80m) 6.9 m/s
  • Max wind speed acc. class III
  • Turbulence Class A
  • Average temperature >3.5 °C
  • Average air density 1.21 kg / m3
  • Height above sea level >350 m
  • Operating ambient temperature range -30 to +55 °C
  • Geometry
  • Blade length 48.63 m
  • Maximum chord length 3.608 m
  • Pre-cone angle 1 deg
  • Aerodynamics
  • Airfoils Blade Dynamics, TU Delft and NACA
  • Design Tip Speed Rotio 9.4
  • Maximum Power Coefficient 0.49
  • Structural
  • Blade Mass 6,150 kg
  • Structural cooncept Blade Dynamics proprietary
  • Production method Blade Dynamics proprietary
  • Materials Epoxy, glass fibre, carbon fibre
  • GL certification >Complete
  • Lightning Protection Aluminium Receptor System
  • Mounting
  • Root Bolt Circle Diameter 2,110 mm
  • Number of Bolts 64
  • Bolt type M30

Performance characteristics

Site conditions

D49 certifications
GL Renewables Certification
Product data sheets
Dynamic 49 data sheet
Awards
Winner of best blade 2012
"The only low weight, high performance blade that can
be transported in two sections and combined locally"
"The only low weight,
high performance blade
that can be transported
in two sections and
combined locally"
Pepe Carnevale, CEO
David Cripps

Enabling oversized rotors

In recent years, more and more turbines have been equipped with oversized rotors that increase the AEP of a turbine in a cost-effective way.

This is increasingly difficult onshore because of the cost and difficulty of transportation.

Blade Dynamics bring a significant step forward in terms of sheer performance, by enabling lighter, larger blades, on larger machines, that can be economically transported to the end user. Blades for very large onshore turbines are being designed up to 70m long for areas with very low wind speeds.

Transforming logistics.

Beyond 50m, road transportation costs for blades become very high. This problem can be overcome in some cases by building wind farms in more accessible locations, but the fundamental need is for blades that can be shipped in subcomponents. This is a technical challenge that has not been successfully addressed until now.

Blade Dynamics' remote blade completion system is a containerized version of the same assembly technology used in the blade factory. Blades can be transported to the site in two segments and permanently consolidated into a seamless blade in a location more local to the wind farm. This feature adds very little mass to the structure and has been fatigue tested. The system is available as an option on every onshore blade.

Blades can be transported in subsections to site, transforming potential onshore.

The same technology used in the factory can be applied remotely for final blade assembly.

USA Contact

For more information on Blade Dynamics products and services, please call or e-mail

+1 504 662 0100

Blade Dynamics LLLP
NASA Michoud Assembly Facility
13800 Old Gentilly road
Bldg 303
New Orleans LA 70129
USA

UK Contact

For more information on Blade Dynamics products and services, please call or e-mail

+44 (0) 2380 018 340

Blade Dynamics Ltd
Gamma House, Enterprise Road
University of Southampton Science Park,
Chilworth, Southampton
Hampshire, SO16 7NS
United Kingdom