XV-4A VTOL RESEARCH AIRCRAFT PROGRAM

Abstract

A program was conducted to determine the feasibility of the augmented jet ejector concept for attaining a VTOL capability for aircraft. During the flight test program, the actual vertical thrust realized was only about 93 percent of that predicted, and consequently the aircraft, the XV-4A, had a marginal lift capability. This marginal lift capability severely limited the capability to conduct quantitative data gathering during the flight test program. The report presents the limited quantitative results obtained and a brief summary of the aircraft design, systems, flight test program, VTOL lift improvement program, and small-scale and full-scale wind tunnel programs. The feasibility of the augmented jet ejector concept was demonstrated; however, this concept is not considered to be competitive with other concepts for attaining a VTOL capability.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1966
Accession Number
AD0635106

Entities

People

  • Randall B. Lowry
  • Robert Nicholson

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Configurations
  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Boundary Layer
  • Boundary Layer Control
  • Control Systems
  • Fixed Wing Aircraft
  • Fuselages
  • Horizontal Stabilizers
  • Propulsion Systems
  • Research Aircraft
  • Sea Level
  • Spars
  • Vertical Takeoff Aircraft
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Systems Analysis and Design