Flutter Investigations on a Transavia PL12/T-400 Aircraft

Abstract

The Transavia T-400 Skyfarmer is the latest version of the twin-boom agricultural aircraft and incorporates several changes from the T-300 aircraft. In a ferrying flight in weather conditions which would not normally be experienced during agricultural work, an incident occurred which is believed to have been a limited amplitude flutter of the rudder and tail boom at a frequency around 3.5 Hz. In subsequent tests, the test pilot found that he could induce a similar oscillation by applying more than 50% rudder actuation in a series of quick jabs in alternate directions. This report details the subsequent activity to find a solution to the problem, and the tests conducted to verify the effectiveness of the solution. Keywords: Aeroelasticity; Vibration tests; Flight testing; Airframes; Utility aircraft; Australia.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1989
Accession Number
ADA219108

Entities

People

  • A. Goldman
  • C. D. Rider
  • P. Piperias

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Accelerometers
  • Air Force
  • Aircrafts
  • Control Surfaces
  • Department Of Defense
  • Engineering
  • Frequency
  • Modal Analysis
  • Plastics
  • Polyethylene Glycols
  • Resins
  • Resonant Frequency
  • Rudders
  • Surfaces
  • Tape Recorders
  • Trailing Edges

Readers

  • Aerospace Engineering
  • Control Systems Engineering.
  • Military/Explosive Ordnance Disposal (EOD) Technology