To make this website work, we log user data. By using Shephard's online services, you agree to our Privacy Policy, including cookie policy.

Open menu Search

Heli-Expo 2012: Austrian firm patenting low-noise blade tip

12th February 2012 - 13:29 GMT | by Tony Osborne in Dallas, Texas


An Austrian helicopter operator is unveiling a blade tip design that its designer claims reduces both noise and improves performance at Heli-Expo 2012 in Dallas.

Walter Enthammer, owner and manager of Salzburg-based Helios Hubchrauber GmbH, has been working on the project known as the SilentEcoWing since 1995. The design aims to reduce the induced drag on the tip of a rotor blade by splitting the airflow from one large vortex into several small vortices.

Enthammer claims that this not only reduces induced drag but also helps to improve performance by making the blades more efficient. Enthammer says that wind tunnel

Already have an account? Log in

Want to keep reading this article?

Read this Article

Get access to this article with a Free Basic Account

  • Original curated content, daily across air, land and naval domains
  • 1 free story per week
  • Personalised news alerts
  • Daily and weekly newsletters
Create account

Unlimited Access

Access to all our premium news as a Premium News 365 Member. Corporate subscriptions available.

  • Original curated content, daily across air, land and naval domains
  • 14-day free trial (cancel at any time)
  • Unlimited access to all published premium news
Start your free trial
Tony Osborne


Tony Osborne

Tony was deputy editor of Defence Helicopter and Rotorhub magazines before joining Aviation Week in …

Read full bio

Share to