A Preliminary Investigation of Handling Qualities Requirements for Helicopter Instrument Flight during Decelerating Approach Manoeuvers and Overshoot (Etude Preliminaire sur le Plan des Characteristiques Essentielles de la Maniabilite des Helicopteres pour les Approches Decelerees et pour le Depassement).
Abstract
This investigation was carried out to highlight deficiencies of helicopters handling qualities when performing low speed instrument approaches. Steep decelerating MLS (Microwave Landing System) approaches to a decision height of 50 feet, simultaneously decelerating to 20 knots, were perfromed in an airborne simulator--a variable-stability Bell 205A helicopter. Tracking performance, interms of height, azimuth and speed errors was of an acceptable standard, but pilot workload was extremely high, especially during the overshoot phase. Benefits of different levels of control system augmentation were not readily apparent in this high workload environment. In view of the results of this investigation, a follow-on program is proposed where further attempts will be made to determine the effects of display and control sophistication on pilot workload during slow-speed helicopter instrument procedures. Keywords: Instrument landings; Flight testing, (Canada).
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1985
- Accession Number
- ADA154650
Entities
People
- Maria A. Morgan
- S. Kereliuk
Organizations
- National Research Council Canada