Skip to main content

Technical Note: UH‐60A Airloads Program Azimuth Reference Correction

Buy Article:

$30.00 plus tax (Refund Policy)

Abstract:

Recent investigation of airloads data from the Army/NASA UH‐60A Airloads Program has revealed an important error in the azimuthal reference used for comparison with rotorcraft analyses. A 7° difference exists between flight test and analysis reference systems because of the offset of the elastomeric bearing from the hub axis. Most previously published data applied this 7° shift in the wrong direction. Correction to published data, therefore, requires a 14° shift to the left for azimuthally referenced data. The correction of the reference error has significantly improved correlation of comprehensive and especially coupled CFD analyses with the UH‐60A Airloads Program data. Most publications prior to January 2005 utilize data with the incorrect azimuth reference. A list of affected Army/NASA publications is included in this paper.

Document Type: Research Article

DOI: https://doi.org/10.4050/1.3092857

Affiliations: Flight Vehicle Research and Technology Division, NASA Ames Research Center, Moffett Field, CA

Publication date: 2005-04-01

More about this publication?
  • The Journal of the American Helicopter Society is the world's only scientific journal dedicated to vertical flight technology. It is a peer-reviewed technical journal published quarterly by AHS International and presents innovative papers covering the state-of-the-art in all disciplines of rotorcraft design, research and development. (Please note that AHS members receive significant discounts on articles and subscriptions.)

    Journal subscribers who are AHS members log in here if you are not already logged in.

    Authors can find submission guidelines and related information on the AHS website.

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more