Longitudinal Stability and Control of Canard Hydrofoil Craft

Abstract

A study of longitudinal stability and control of canard hydrofoil-supported craft of the 110-long-ton weight class, in both calm and disturbed seas, is presented. Configurations involve craft with all foils fully submerged, all foils surface-piercing, and foils of hybrid arrangement (submerged forward, surface-piercing aft and vice versa). As a design aid, effects of variations of major parameters such as speed, c.g. location, foil spacing, dihedral angle, etc. are illustrated. It is shown that autopilot stabilization of the submerged-foil reference craft is required in waves. Although the surface-piercing-foil reference craft is inherently stable in both smooth water and disturbed seas, its capabilities in waves are more limited than those for the submerged-foil vehicle. Also presented is a comparison of canard and conventional configurations in calm and disturbed seas.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1961
Accession Number
AD0265465

Entities

People

  • Gilbert Chuck
  • Richard K. Luke

Organizations

  • Hughes Aircraft Company

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Aspect Ratio
  • Canard Configurations
  • Center Of Gravity
  • Computer Programs
  • Computers
  • Control Surfaces
  • Control Systems
  • Digital Computers
  • Dihedral Angle
  • Dynamic Response
  • Equations
  • Frequency
  • Hydrofoil Craft
  • Load Distribution
  • Marine Engineering
  • Simulations

Readers

  • Aerodynamics/Aeronautics.
  • Marine Hydrodynamics
  • Systems Analysis and Design

Technology Areas

  • Space
  • Space - Spacecraft Maneuvers