Accession Number:

ADA305193

Title:

Approach Station Keeping (ASK) Experiment Plan and Final Report.

Descriptive Note:

Technical rept. Jul-Aug 95,

Corporate Author:

FEDERAL AVIATION ADMINISTRATION TECHNICAL CENTER ATLANTIC CITY NJ

Report Date:

1995-12-01

Pagination or Media Count:

66.0

Abstract:

The Approach Station Keeping ASK study was conducted at the request of the Federal Aviation Administrations FAAs Flight Standards Organization AFS-400 to investigate an issue raised by RTCA Special Committee - 186 concerning implementation of the proposed Automatic Dependent Surveillance-Broadcast ADS-B system. The primary study objective was to investigate whether both Indicated Air Speed IAS and Ground Speed GS of a leading aircraft were required by the flight crew of a trailing aircraft to maintain separation. The secondary study objective was to investigate whether provision of IAS information of a leading aircraft would enable the flight crew of a trailing aircraft to detect the presence of wind shear. The test bed consisted of the FAAs Reconfigurable Cockpit Simulator RCS and General Aviation Trainer GAT located at the FAA Technical Center in Atlantic City, NJ. The RCS was configured as a Boeing 747-400 aircraft and flown as the trailing aircraft. The GAT was flown as the leading aircraft at approach and landing speeds corresponding to a Beechcraft Super King Air BE-20. The dynamic position of the leading aircraft, a data block containing call sign, type aircraft, and GS or GS and IAS of the leading aircraft, and a 3-mile range ring were incorporated in the Navigation Display of the trailing aircraft. Five flight crews conducted 24 approaches each. The wind condition, starting position, configuration and speed, airspeed option, and control mode autopilot or manual were varied for each approach. Analysis of subjective and objective data indicated that IAS did not appear to provide an advantage for maintaining instantaneous separation.

Subject Categories:

  • Military Aircraft Operations
  • Flight Control and Instrumentation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE