The Effect of Dead Rise upon the High-Angle Porpoising Characteristics of Two Planing Surfaces in Tandem

Abstract

Porpoising tests were made of three rudimentary models composed of two tandem V-bottom planing surfaces, each fitted with a tail plane. Upper and lower branches of the upper trim limit of stability were determined for three dead rise angles and two step depths. Results indicated upper trim limits were markedly raised by increasing dead rise angle from 15 to 22.5 deg and were less affected from 22.5 to 30 deg. Wing effect on recovery from high-angle type porpoising was discussed.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1943
Accession Number
ADA801311

Entities

People

  • James M. Benson
  • Milton M. Klein

Organizations

  • Langley Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamic Lift
  • Aeronautical Laboratories
  • Aeronautics
  • Afterbodies
  • Aspect Ratio
  • Center Of Gravity
  • Coefficients
  • Flying Boats
  • High Angles
  • Horizontal Stabilizers
  • Hydrodynamic Configurations
  • Planing Surfaces
  • Recovery
  • Seaplanes
  • Surfaces
  • Wind Tunnel Tests
  • Wind Tunnels

Readers

  • Aerodynamics/Aeronautics.
  • Marine Hydrodynamics