An Empirical Method For Estimating the Effect of Ground Proximity on the Jet-Induced Lift of V/STOL Aircraft Employing Rectangular Jets.

Abstract

An empirical method has been developed to predict the propulsive-induced forces on a V/STOL aircraft hovering in proximity of the ground. This method is applicable to configurations employing two, three, or four rectangular exhausts. Planform contour, nozzle pressure ratio, and lift improvement devices are considered. Accuracies on the order of one percent of propulsive thrust are demonstrated. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1981
Accession Number
ADA105668

Entities

People

  • J. A. Sansone
  • W. H. Foley

Organizations

  • General Dynamics

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Aeronautics
  • Air Force
  • Air Force Facilities
  • Aircraft Design
  • Aircrafts
  • Airframes
  • Altitude
  • Army Aviation
  • Buoyancy
  • Corporations
  • Flow Fields
  • Geometric Forms
  • Lines (Geometry)
  • Shape
  • Short Takeoff Aircraft
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.