NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Development and test results of a flight management algorithm for fuel conservative descents in a time-based metered traffic environmentA simple flight management descent algorithm designed to improve the accuracy of delivering an airplane in a fuel-conservative manner to a metering fix at a time designated by air traffic control was developed and flight tested. This algorithm provides a three dimensional path with terminal area time constraints (four dimensional) for an airplane to make an idle thrust, clean configured (landing gear up, flaps zero, and speed brakes retracted) descent to arrive at the metering fix at a predetermined time, altitude, and airspeed. The descent path was calculated for a constant Mach/airspeed schedule from linear approximations of airplane performance with considerations given for gross weight, wind, and nonstandard pressure and temperature effects. The flight management descent algorithm is described. The results of the flight tests flown with the Terminal Configured Vehicle airplane are presented.
Document ID
19800024896
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Knox, C. E. (NASA Langley Research Center Hampton, VA, United States)
Cannon, D. G. (Boeing Commercial Airplane Co. Seattle, United States)
Date Acquired
September 4, 2013
Publication Date
October 1, 1980
Subject Category
Aircraft Instrumentation
Report/Patent Number
NASA-TP-1717
Accession Number
80N33404
Funding Number(s)
PROJECT: RTOP 534-04-13-52
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available