STUDY OF FLEXIBLE JET EXTENSIONS FOR GROUND EFFECT MACHINES

Abstract

The results are presented of a study of flexible jet extensions for Ground Effect Machines. A relatively simple trunk design can give a considerable increase in the effective clearance height of a jet with only a small loss in stability. An analysis was made of the optimum jet extension configuration and the possible types of materials and fabrication procedures. Two dimensional model tests were carried out with varying jet wall extension lengths, and an optimum arrangement for lift efficiency and stability determined. The most promising technique and method were selected for application to the Navy Hydroskimmer, SKMR-1. A typical section of the proposed jet extension was tested and a comparison made between the original SKMR-1 performance with a flat bottom and with jet extensions. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1962
Accession Number
AD0289693

Entities

Organizations

  • Bell Aircraft Corporation

Tags

DTIC Thesaurus Topics

  • Clearances
  • Efficiency
  • Fabrication
  • Ground Effect
  • Ground Effect Machines
  • Materials
  • Model Tests
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Marine Hydrodynamics
  • Systems Analysis and Design