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History

2016

  • Canadian patent granted in October
  • Flight tests with helicopters showed significant power optimization
  • Flight tests with a motorized fixed wing aircraft proved:
    - substantial amelioration of the lift/drag ratio
    - lower required driving power
    - optimized stall characteristics

2015

  • During the World Climate Summit in Paris in December, a fixed wing aircraft project equipped with SilentEcoWing tips was presented. 

2014

  • US patent granted in December
  • Test runs with a helicopter, whose M/R blades were modified with SilentEcoWing tips, show a torque saving of appr. 6 percent.

2013

  • EWEA Vienna.
  • Parametrisation / adaption of SilentEcoWing to different airfoiles.
  • Minister of Science Dr. Karlheinz Töchterle visited our company.

2012

  • Presentation at HELI EXPO Dallas. First contact with international helicopter companies.

2009

  • Wind tunnel tests at Technical University Munich. Confirmation of higher lift coefficients and of the reduction of drag coefficients with the use of SilentEcoWing-modified blade tips.
  • International patent application.

2008

  • Austrian patent application.

2005-2008

  • Optimization of shape and arrangement for the current SilentEcoWing solution.

2002-2005

  • Further tests with various surface structures as well as blade and blade tip geometries, without achieving substantial improvements.
  • First tests with bionics derivations of bird’s wing ends.
  • Construction of various test models. Tests show significant improvements.

2001

  • Tests with various surface structures, including 3M aerodynamic drag reduction tape.

From 1995 on

  • Engagement with the subject of noise development at wing profiles.  
Background