Test of Glide Slope Guidance with and without Simplified Abbreviated Visual Approach Slope Indicator.

Abstract

In a flight test at a small airport, rectangular aiming-point markings with and without the additional use of a low-cost version of the red/white simplified abbreviated visual approach slope indicator (SAVASI) served as daytime approach guidance aids. Results showed that approaches made with the SAVASI were less variable in measured approach slope, and approaches made in the last half-mile before landing were near the 4 degrees SAVASI glidepath angle. On average, approaches made either with or without the SAVASI were steeper than 4 degrees, and tracking of itinerant aircraft not informed of the testing confirmed that the usual approach for small aircraft at this runway was in the 5 degrees to 6 degrees range. This indicates that future installations of SAVASI or related guidance aids should be made after measuring the normal practice at a given airport. Test pilot opinion was that the SAVASI was easy to use and provided good guidance in the vertical plane and that the rectangular aiming-point markings were beneficial. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1974
Accession Number
AD0787304

Entities

People

  • Guy S. Brown
  • Richard L. Sulzer

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Airports
  • Buildings And Structures
  • Glide Slope
  • Guidance
  • Indicators
  • Infrastructure
  • Terminal Flight Facilities
  • Transportation Infrastructure
  • Visual Approach Slope Indicators

Readers

  • Aviation Safety and Air Traffic Management
  • Regression Analysis.