Universiti Teknologi Malaysia Institutional Repository

Preliminary Experimental Investigation on Autorotation Performance of Scale Model Helicopter in Vertical Manoeuvre

Wahab, A. A. and M. Ali, M. S. (2006) Preliminary Experimental Investigation on Autorotation Performance of Scale Model Helicopter in Vertical Manoeuvre. In: 1st Regional Conference on Vehicle Engineering & Technology, 3-5 July 2006, Kuala Lumpur, Malaysia.

[img]
Preview
PDF (Full text)
87Kb

Abstract

This paper presents the results of the preliminary experimental investigation of reducing the steady rate of descent of a typical helicopter in vertical autorotation. Test data for two types of blades with different driving region areas were obtained. Results were summarized for zero collective pitch, same disk loading and same mass moment of inertia. The results of this preliminary test indicated that the expanding of the driving region area did reduce the steady rate of descent in vertical autorotation slightly and in agreement with the corresponding theoretical values. Further experimental investigation will be conducted looking for suitable driving region areas and collective pitch conditions that will give the reduction in the steady rate of descent significantly for ensuring safe landing condition.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Autorotation; driving region; rate of descent
Subjects:T Technology > TL Motor vehicles. Aeronautics. Astronautics
Divisions:Mechanical Engineering
ID Code:339
Deposited By: Mrs. Junaidah Abdullah
Deposited On:15 Feb 2007 08:00
Last Modified:01 Jun 2010 02:43

Repository Staff Only: item control page