Helicopter's auto-rotation: an analytical model for the diagram profile of height versus speed

Authors

  • Luiz Eduardo Miranda José Rodrigues CBPF

DOI:

https://doi.org/10.5585/exacta.v4i1.654

Keywords:

Auto-rotação. Diagrama de altura versus velocidade. Helicópteros.

Abstract

This article focuses the effects from the loss of net power in the main rotor of single-engined helicopters that results in the regime of operation usually known as auto-rotation. An analytical model, presented in the article, helps to trace the height versus speed diagram, that shows the regions in which the flight remains restricted, in the case of auto-rotation. Qualitative and quantitative analysis of the study are carried out, by comparing the results obtained in this work and the ones achieved by means of a semi-empirical model available in the literature.

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Author Biography

Luiz Eduardo Miranda José Rodrigues, CBPF

Doutor em Física – CBPF; Pesquisador titular – CBPF.

Published

2008-03-12

How to Cite

Rodrigues, L. E. M. J. (2008). Helicopter’s auto-rotation: an analytical model for the diagram profile of height versus speed. Exacta, 4(1), 65–76. https://doi.org/10.5585/exacta.v4i1.654