An Investigation of Hydrofoils in the NACA Tank. 1 - Effect of Dihedral and Depth of Submersion

Abstract

Tests were conducted on hydrofoil assemblies approximating an arrangement for use under seaplanes or surface boats. A series of hydrofoils, each supported by two struts, was towed at various depths ranging from partial submersions to a depth of 5-chord lengths. At depths greater than 4 or 5 chords, the influence of the surface of the water is small; hydrofoils operating at low speed will have characteristics similar to those of airfoils of the same section.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1942
Accession Number
ADA800646

Entities

People

  • James M. Benson
  • Norman S. Land

Organizations

  • Langley Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Aeronautics
  • Airfoils
  • Assembly
  • Cavitation
  • Coefficients
  • Dihedral Angle
  • Fabrication
  • Flying Boats
  • Hydrofoils
  • Leading Edges
  • Low Angles
  • Measurement
  • Pressure Distribution
  • Research Facilities
  • Seaplanes
  • Wind Tunnels

Readers

  • Aerodynamics/Aeronautics.
  • Marine Hydrodynamics