SUPPLEMENTARY LIFT FOR AIR CUSHIONED VEHICLES. VOLUME 3. PERFORMANCE ANALYSIS

Abstract

The results of a wind tunnel study of supplementary lift for air cushioned vehicles were applied to vehicles for the army command reconnaissance and logistics missions. Aerodynamic off-loading of air cushioned vehicles results in an increase of power available during cruise which can be utilized to increase cruise height above the hover eight or to operate during cruise at lower power settings. With the configurations in these tests, aerodynamics off- loading was most effective at speeds of 0 mph and above, optimum speed increasing with base loading. At 20 lb/sq ft base loading (16.67 lb/sq ft wing loading) approximately 100 mph offered the lowest power re uired. Variable leading and trailing edge jet nozzles appear to be highly desirable in providing both aerodynamic off-loading for efficient cruise and an optimum hover configuration.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1962
Accession Number
AD0286317

Entities

People

  • J. Helgesen
  • N. Kirschbaum

Organizations

  • Grumman

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Cushion Vehicles
  • Aircrafts
  • Engineering
  • Fuel Consumption
  • Fuel Systems
  • Ground Effect
  • Jet Flaps
  • Leading Edges
  • Mass Flow
  • Propulsion Systems
  • Reconnaissance Vehicles
  • Sea Level
  • Shrouded Propellers
  • Trailing Edges
  • Transportation
  • Turboprop Engines
  • Wind Tunnels

Fields of Study

  • Physics

Readers

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