Two-Dimensional Air Cushion Landing System Peripheral Jet Confirmation Study

Abstract

A simplified two-dimensional peripheral jet theory for the equilibrium performance of an air cushion vehicle is investigated. The proposed theory intends to yield a rapid prediction of the actual flow rate and actual power requirements for an air cushion landing system in the hover condition. Nine specific nozzle configurations were tested to determine which resulted in the best power-height performance and whether the theory is able to predict the experimental performance. Three single peripheral jet configurations were tested at a trunk pressure of 80 psfg. Six distributed jet configurations were tested at a trunk pressure of 40 psfg. Effects of inward flow injection angles of 30 degrees and 60 degrees were investigated.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1973
Accession Number
AD0771616

Entities

People

  • John R. Rogers

Organizations

  • Flight Dynamics Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Cushion Vehicles
  • Air Force
  • Air Supplies
  • Aircrafts
  • Coefficients
  • Experimental Data
  • Flow Rate
  • Flow Visualization
  • Gages
  • Ground Effect Machines
  • Measurement
  • Measuring Instruments
  • Plastic Explosives
  • Three Dimensional
  • Two Dimensional
  • Vehicle Equipment
  • Vehicles

Readers

  • Aerodynamics.
  • Explosive Engineering.
  • Parasitology and Pharmacology of Malaria.