Performance and Design Investigation of Heavy Lift Tilt-Rotor with Aerodynamic Interference Effects

Abstract

Performance calculations were conducted for 146,600 lb conventional and quad tilt-rotors, which are to cruise at 300 kt at a 4000 ft=95 F condition. Aerodynamic interference effects on the aircraft cruise performance were quantified. Aerodynamic interference improves the aircraft lift-to-drag ratio of the baseline conventional tilt-rotor. However, interference degrades the aircraft performance of the baseline quad tilt-rotor, mostly due to the unfavorable effects from the front wing to the rear wing. A parametric study was conducted to understand the effects of design parameters on the performance of the aircraft. A reduction in rotor tip speed increased the aircraft lift-to drag ratio the most among the design parameters investigated.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2009
Accession Number
ADA529294

Entities

People

  • Hyeonsoo Yeo
  • Wayne Johnson

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamic Configurations
  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Computational Fluid Dynamics
  • Fluid Dynamics
  • Geometry
  • Rotary Wing Aircraft
  • Tilt Rotor Aircraft
  • Vehicles
  • Vertical Takeoff Aircraft
  • Wing Tips

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Aerospace Engineering