AN INVESTIGATION OF THE DYNAMIC STABILITY CHARACTERISTICS OF A QUAD CONFIGURATION, DUCTED-PROPELLER V/STOL MODEL. VOLUME I. PHASE I - HOVERING

Abstract

Results are presented of experiments conducted to measure the dynamic stability characteristics of a quad configuration, ducted-propeller, dynamically similar model, V/STOL aircraft near hover. The data presented include longitudinal and lateral transient response characteristics of the dynamic model. Also included is a comparison with full-scale duct characteristics of the lift, drag, and pitching moment characteristics of an isolated duct from the model. The model employed in the experiments is a generalized research model which was arranged to represent closely the X-22A V/STOL aircraft. The data presented in the report represent the first phase of a three-phase investigation of the dynamic stability of this type of V/STOL aircraft. The other two phases pertain to the longitudinal and lateral/directional characteristics at four low- speed and high-duct-incidence trim conditions.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1968
Accession Number
AD0679134

Entities

People

  • Howard C. Curtiss Jr.
  • John P. Kukon
  • Joseph J. Traybar
  • William F. Putman

Organizations

  • Princeton University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Angular Motion
  • Army Aviation
  • Dynamic Tests
  • Equations
  • Equations Of Motion
  • Flight
  • Government Procurement
  • Level Flight
  • Measurement
  • Moment Of Inertia
  • Propeller Blades
  • Propellers
  • Short Takeoff Aircraft
  • Shrouded Propellers
  • United States
  • Vehicles

Readers

  • Aviation Science / Aeronautics.
  • Computational Modeling and Simulation
  • Fluid Mechanics and Fluid Dynamics.