The Longitudinal Stability of Flying Boats as Determined by Tests of Models in the NACA Tank. 2 - Effect of Variation in Form of Hull in Longitudinal Stability

Abstract

Data taken from tests at constant speed to establish trim limits of stability, tests at accelerated speeds to determine stable limits of center of gravity shift, and tests at decelerated speeds to obtain landing characteristics of several model hull forms were used to establish hull design effect on longitudinal stability of porpoising. Results show a reduction of dead rise angle as being the only investigated factor reducing low trim limit. Various methods of reducing afterbody interference increased upper trim limit.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1942
Accession Number
ADA800591

Entities

People

  • Roland E. Olsen
  • Starr Truscott

Organizations

  • Langley Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Afterbodies
  • Air Force
  • Aircrafts
  • Airplanes
  • Amplitude
  • Bodies
  • Center Of Gravity
  • Clearances
  • Flying Boats
  • Gravity
  • Hulls (Marine)
  • Instability
  • Planing Surfaces
  • Transverse
  • Ventilation
  • Violence

Readers

  • Aerodynamics/Aeronautics.
  • Marine Hydrodynamics