Aerodynamic Design and Analysis of Propellers for Mini-Remotely Piloted Air Vehicles. Volume 1 Open Propellers

Abstract

This report prsents the design and anlysis of propellers applied to mini-remotely piloted vehicles. Modifications to the airfoil data used for predicting the profile drag losses were necessary to account for operation at the low reynolds number encountered by mini-RPV propellers. Due to the lack of two-dimensional airfoil data, the correction to the drag coefficient is ' Using the revised methods of propeller analysis, six optimum propellers were designed and analyzed for two different RPV's. The analysis showed that improved performance can be obtained with the new designs. A ducted propeller with sufficiently low blade tip clearances was also analyzed. This configuration appears to have superior performance to the open type propellers considered, as well as a potential for reduced noise. Propellers with variable blade angles also appear to offer advantages from both the noise and performance standpoints. Volume II presents the ducted-propeller design for the Mini-RPV.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1978
Accession Number
ADA050593

Entities

People

  • Henry V. Borst

Tags

Communities of Interest

  • Air Platforms
  • Autonomy
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Aircrafts
  • Airframes
  • Boundary Layer
  • Computer Programs
  • Ducted Fans
  • Fluid Dynamics
  • Mach Number
  • Measurement
  • Propeller Shafts
  • Remotely Piloted Vehicles
  • Reynolds Number
  • Shrouded Propellers
  • Turbulence
  • Two Dimensional
  • Wind Tunnel Tests
  • Wind Tunnels

Readers

  • Aerodynamics.
  • Aerospace Engineering