Status Report

NASA Langley Technology Transfer Opportunity: Tip Vortex Noise Reduction

By SpaceRef Editor
November 21, 2013
Filed under , ,

Synopsis – Nov 18, 2013

General Information

    Solicitation Number: TT01034

    Posted Date: Nov 18, 2013

    FedBizOpps Posted Date: Nov 18, 2013

    Recovery and Reinvestment Act Action: No

    Original Response Date: Nov 15, 2014

    Current Response Date: Nov 15, 2014

    Classification Code: 99 — Miscellaneous

    NAICS Code: 927110

    Set-Aside Code: 

Contracting Office Address

NASA/Langley Research Center, Mail Stop 12, Industry Assistance Office, Hampton, VA 23681-0001


NASA Langley Research Center in Hampton, VA solicits inquiries from companies interested in obtaining license rights to commercialize, manufacture and market the following technology. License rights may be issued on an exclusive or nonexclusive basis and may include specific fields of use.


NASA’s Langley Research Center has developed aircraft flap tip modifications that reduce noise produced during approach and landing. The modifications are rigid open lattice (honeycomb-like) and fin structures (closely packed columns) that delay the formation of a noise-generating vortex at the flap side edge. The designs are low-profile, with control action limited to the steady and fluctuating fields in a very small region at the flap edge. By limiting the control action to a very small region, aerodynamic characteristics of the structure remain nearly unchanged. The noise-reducing structures may be used in a variety of applications where tip vortices produce undesirable noise. These applications may include helicopter or wind turbine rotors. The technology has been validated using computational fluid dynamics analysis and wind tunnel testing.

To express interest in this opportunity, please respond to with the title of this Technology Transfer Opportunity as listed in this FBO notice and your preferred contact information. Please also provide the nature of your interest in the technology along with a brief background of your company. For more information about licensing other NASA-developed technologies, please visit the NASA Technology Transfer Portal at .

These responses are provided to members of NASA Langley’s Office of Strategic Analysis and Business Development (OSACB) for the purpose of promoting public awareness of NASA-developed technology products, and conducting preliminary market research to determine public interest in and potential for future licensing opportunities. If direct licensing interest results from this posting, OSACB will follow the required formal licensing process of posting in the Federal Register. No follow-on procurement is expected to result from responses to this Notice.

Point of Contact

    Name:Jesse C Midgett

    Title:Program Specialist



SpaceRef staff editor.