Computer Program for Performance Prediction of Tandem-Rotor Helicopters.

Abstract

A computer program for the HP-41 series calculator is presented which predicts the rotor shaft horsepower required for tandem-rotor helicopters to a given set of helicopter parameters and flight conditions. Three simplified analytical methods of calculating the induced power for tandem-rotor helicopters were explored during the development of the program and their effect on the total shaft horsepower required was compared to actual test data. These comparisons as well as size and complexity considerations were used in selecting the method to be used. The program can be used in preliminary design analysis and as an educational tool where only an estimate of the actual shaft horsepower is required. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1985
Accession Number
ADA159193

Entities

People

  • D. L. Cotner

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautical Engineering
  • Aeronautics
  • Aircrafts
  • Airframes
  • Altitude
  • California
  • Classification
  • Computer Programs
  • Data Sets
  • Engineering
  • Equations
  • Ground Effect
  • Helicopters
  • Schools
  • Standards
  • United States
  • Urban Areas

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Computational Modeling and Simulation